Yamaha VF115 v8 Owner's Manual PDF
Summary of Content for Yamaha VF115 v8 Owner's Manual PDF
Read this manual carefully before operating this outboard motor.
OWNERS MANUAL
VF115
LIT-18626-13-69 6FN-28199-36-E0
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This product can expose you to chemicals including engine exhaust, which is known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
WARNING:
Ce produit peut vous exposer des produits chimiques y compris aux gaz dchappement, qui sont considrs par ltat de Californie comme tant cancrignes, et au monoxyde de carbone, qui est considr par ltat de Californie comme un facteur de malformations congnitales ou dautres troubles de la reproduction. Pour plus dinformations, rendez-vous sur www.P65Warnings.ca.gov.
ZMU08844
Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating. This manual should stay with the outboard motor if it is sold.
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Important manual information EMU44141
To the owner Thank you for selecting a Yamaha outboard motor. This Owners Manual contains infor- mation needed for proper operation, mainte- nance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new Yamaha. If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer. In this Owners Manual particularly important information is distinguished in the following ways.
: This is the safety alert symbol. It is used to alert you to potential personal injury haz- ards. Obey all safety messages that follow this symbol to avoid possible injury or death. EWM00782
A WARNING indicates a hazardous situa- tion which, if not avoided, could result in death or serious injury.
ECM00702
A NOTICE indicates special precautions that must be taken to avoid damage to the outboard motor or other property.
TIP: A TIP provides key information to make pro- cedures easier or clearer.
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most current prod- uct information available at the time of print- ing, there may be minor discrepancies
between your machine and this manual. If there is any question concerning this manual, please consult your Yamaha dealer. To ensure long product life, Yamaha recom- mends that you use the product and perform the specified periodic inspections and main- tenance by correctly following the instruc- tions in the owners manual. Any damage resulting from neglect of these instructions is not covered by warranty. Some countries have laws or regulations re- stricting users from taking the product out of the country where it was purchased, and it may be impossible to register the product in the destination country. Additionally, the war- ranty may not apply in certain regions. When planning to take the product to another coun- try, consult the dealer where the product was purchased for further information. If you purchased this outboard motor used, see your Yamaha dealer to have it registered in your name in Yamaha records.
TIP: The VF115A and the standard accessories are used as a base for the explanations and illustrations in this manual. Therefore some items may not apply to every model. EMU44152
VF115 OWNERS MANUAL
2022 by Yamaha Motor Co., Ltd. 1st Edition, November 2021
All rights reserved. Any reprinting or unauthorized use without the written permission of
Yamaha Motor Co., Ltd. is expressly prohibited.
Printed in Japan
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Table of contents
Safety information.............................1 Outboard motor safety.................... 1
Propeller ............................................. 1 Rotating parts..................................... 1 Hot parts ............................................ 1 Electric shock..................................... 1 Power trim and tilt .............................. 1 Engine shut-off cord (lanyard) ............ 1 Gasoline ............................................. 2 Gasoline exposure and spills ............. 2 Carbon monoxide .............................. 2 Modifications...................................... 2
Boating safety ................................. 2 Alcohol and drugs .............................. 2 Personal flotation devices (PFDs) ...... 2 People in the water ............................ 2 Passengers......................................... 2 Overloading........................................ 3 Avoid collisions .................................. 3 Collisions with floating or submerged
objects ............................................ 3 Weather .............................................. 4 Accident reporting.............................. 4 Boat education and training............... 4 Passenger training ............................. 5 Boating safety publications................ 5 Laws and regulations ......................... 5
Boating organizations ..................... 5 Basic boating rules (Rules of the
road) ............................................. 6 Steering and sailing rules and sound
signals............................................. 6 Rules when encountering vessels...... 6 Other special situations...................... 7
General information ........................ 10 Identification numbers record ....... 10
Outboard motor serial number......... 10 Key number...................................... 10
EC Declaration of Conformity (DoC).......................................... 10
CE Marking / UKCA Marking ........ 10 Compliance mark label ................. 11 Read manuals and labels ............. 12
Warning labels ................................. 12 Engine data recording .................. 14
Specifications and requirements ................................... 15
Specifications ............................... 15 Installation requirements .............. 16
Boat horsepower rating.................... 16 Mounting outboard motor ................ 16
Remote control requirements ....... 16 Battery requirements .................... 16
Battery specifications....................... 16 Propeller selection ........................ 17 Start-in-gear protection ................ 18 Engine oil requirements ................ 18 Fuel requirements ......................... 19
Gasoline ........................................... 19 Gasoline Additives............................ 20
Muddy or acidic water .................. 20 Anti-fouling paint .......................... 21 Outboard motor disposal
requirements.............................. 21 Emergency equipment.................. 21 Emission control information ....... 21
Star labels ........................................ 22
Components.................................... 24 Components diagram ................... 24
Optional items .................................. 26 Yamaha Security System
(Y-COP/Optional) .......................... 26 Remote control box.......................... 27 Remote control lever ........................ 27 Neutral interlock trigger.................... 28 Free accelerator ............................... 28 Throttle friction adjuster ................... 29
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Table of contents
Engine shut-off cord (lanyard) and clip ................................................ 29
Main switch ...................................... 30 Power trim and tilt switch on remote
control........................................... 30 Power trim and tilt switch on bottom
cowling.......................................... 31 Tiller handle operation...................... 31 Trim tab with anode ......................... 31 Tilt support lever for power trim and
tilt model ....................................... 32 Cowling lock lever ............................ 32 Flushing device ................................ 33 Fuel filter........................................... 33
Instruments and indicators ............ 34 Digital tachometer ......................... 34
Tachometer ...................................... 34 Trim meter ........................................ 34 Hour meter ....................................... 34 Low oil pressure-alert indicator........ 35 Overheat-alert indicator ................... 35
Digital speedometer ...................... 35 Speedometer.................................... 35 Fuel gauge........................................ 36 Trip meter / Clock / Voltmeter.......... 36 Fuel level-alert indicator ................... 37 Low battery voltage-alert
indicator ........................................ 37 6Y8 Multifunction meters .............. 37
Engine control system .................... 41 Alert system .................................. 41
Overheat alert................................... 41 Low oil pressure alert ....................... 41 Water separator alert........................ 42
Installation .......................................44 Installation ..................................... 44
Mounting the outboard motor .......... 44
Operation ......................................... 46 First-time operation....................... 46
Fill engine oil .................................... 46
Breaking in engine............................ 46 Getting to know your boat ............... 46
Checks before starting engine...... 47 Fuel level .......................................... 47 Removing top cowling...................... 47 Fuel system ...................................... 47 Controls............................................ 48 Engine shut-off cord (lanyard) .......... 48 Engine oil .......................................... 48 Outboard motor................................ 49 Flushing device ................................ 49 Install cowling................................... 49 Power trim and tilt system................ 50 Battery.............................................. 50
Filling fuel ..................................... 51 Operating engine .......................... 51
Sending fuel ..................................... 51 Starting engine ................................. 52
Checks after starting engine......... 54 Cooling water ................................... 54
Warming up engine....................... 54 Procedure for warming up engine.... 54
Checks after engine warm up....... 54 Shifting ............................................. 54 Stop switches................................... 54
Shifting.......................................... 55 Stopping boat ............................... 56 Stopping engine............................ 56
Procedure for stopping engine......... 56 Trimming outboard motor............. 57
Adjusting trim angle ......................... 57 Adjusting boat trim ........................... 58
Tilting up and down ...................... 59 Procedure for tilting up (power trim
and tilt models) ............................. 59 Procedure for tilting down................ 60
Shallow water .............................. 61 Cruising in shallow water ................. 61
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Table of contents
Operating in other conditions ....... 62
Maintenance .................................... 63 Transporting and storing outboard
motor.......................................... 63 Storing outboard motor.................... 63 Conditioning and stabilizing
gasoline......................................... 64 Procedure......................................... 64 Lubrication ....................................... 65 Cleaning and anticorrosion
measures ...................................... 65 Flushing cooling water passage....... 66 Cleaning the outboard motor ........... 66 Checking painted surface of
outboard motor............................. 67 Periodic maintenance ................... 67
Replacement parts ........................... 67 Maintenance interval guidelines....... 68 Maintenance chart 1 ........................ 69 Maintenance chart 2 ........................ 71 Greasing........................................... 72 Inspecting spark plug....................... 73 Inspecting idle speed ....................... 74 Changing engine oil.......................... 74 Replacing the engine oil filter ........... 77 Why Yamalube ................................. 78 Inspecting wiring and connectors .... 78 Inspecting propeller ......................... 78 Removing propeller .......................... 79 Installing propeller ............................ 79 Changing gear oil ............................. 80 Inspecting and replacing anode(s) ... 82 Checking battery (for electric start
models) ......................................... 82 Connecting the battery..................... 83 Disconnecting the battery ................ 83
Trouble Recovery ............................ 84 Troubleshooting ............................ 84 Temporary action in emergency ... 87
Impact damage ................................ 87 Replacing fuse ................................. 87
Power trim and tilt will not operate.......................................... 88
Water separator-alert is activated after leaving port ........................... 88
Treatment of submerged motor.... 90
Consumer information (For North America)........................................... 91
YAMAHA FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY............................... 91
IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE U.S.A. OR CANADA................... 93
INDEX............................................... 94
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Safety information EMU33623
Outboard motor safety Observe these precautions at all times.
EMU36502
Propeller People can be injured or killed if they come in contact with the propeller. The propeller can keep moving even when the motor is in neu- tral, and sharp edges of the propeller can cut even when stationary. Stop the engine when a person is in the
water near you. Keep people out of reach of the propeller,
even when the engine is off.
EMU40272
Rotating parts Hands, feet, hair, jewelry, clothing, personal flotation device (PFD) straps, etc., can be- come entangled with internal rotating parts of the engine, resulting in serious injury or death. Keep the top cowling in place whenever pos- sible. Do not remove or replace the top cowl- ing with the engine running. Only operate the engine with the top cowling removed according to the specific instruc- tions in the manual. Keep hands, feet, hair, jewelry, clothing, PFD straps, etc., away from any exposed moving parts.
EMU33641
Hot parts During and after operation, engine parts are hot enough to cause burns. Avoid touching any parts under the top cowling until the en- gine has cooled.
EMU33651
Electric shock Do not touch any electrical parts while start- ing or operating the engine. They can cause shock or electrocution.
EMU33662
Power trim and tilt Body parts can be crushed between the mo- tor and the clamp bracket when the motor is trimmed or tilted. Keep body parts out of this area at all times. Be sure no one is in this area before operating the power trim and tilt mechanism. The power trim and tilt switches operate even when the main switch is off. Keep people away from the switches whenever working around the motor. Never get under the lower unit while it is tilted, even when the tilt support lever is locked. Se- vere injury could occur if the outboard motor accidentally falls.
EMU33672
Engine shut-off cord (lanyard) Attach the engine shut-off cord so that the engine stops if the operator falls overboard or leaves the helm. This prevents the boat from running away under power and leaving peo- ple stranded, or running over people or ob- jects. Always attach the engine shut-off cord to a secure place on your clothing or your arm or leg while operating. Do not remove it to leave the helm while the boat is moving. Do not at- tach the cord to clothing that could tear loose, or route the cord where it could be- come entangled, preventing it from function- ing. Do not route the cord where it is likely to be accidentally pulled out. If the cord is pulled during operation, the engine will shut off and you will lose most steering control. The boat could slow rapidly, throwing people and ob- jects forward.
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EMU33811
Gasoline Gasoline and its vapors are highly flamma- ble and explosive. Always, refuel according to the procedure on page 51 to reduce the risk of fire and explosion.
EMU33821
Gasoline exposure and spills Take care not to spill gasoline. If gasoline spills, wipe it up immediately with dry rags. Dispose of rags properly. If any gasoline spills onto your skin, immedi- ately wash with soap and water. Change clothing if gasoline spills on it. If you swallow gasoline, inhale a lot of gaso- line vapor, or get gasoline in your eyes, get immediate medical attention. Never siphon fuel by mouth.
EMU33901
Carbon monoxide This product emits exhaust gases which con- tain carbon monoxide, a colorless, odorless gas which may cause brain damage or death when inhaled. Symptoms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.
EMU33781
Modifications Do not attempt to modify this outboard mo- tor. Modifications to your outboard motor may reduce safety and reliability, and render the outboard unsafe or illegal to use. EMU33742
Boating safety This section includes a few of the many im- portant safety precautions that you should follow when boating.
EMU33711
Alcohol and drugs Never operate after drinking alcohol or taking drugs. Intoxication is one of the most com- mon factors contributing to boating fatalities.
EMU40281
Personal flotation devices (PFDs) Have an approved PFD on board for every occupant. Yamaha recommends that you must wear a PFD whenever boating. At a minimum, children and non-swimmers should always wear PFDs, and everyone should wear PFDs when there are potentially hazardous boating conditions.
EMU33732
People in the water Always watch carefully for people in the wa- ter, such as swimmers, skiers, or divers, whenever the engine is running. When some- one is in the water near the boat, shift into neutral and stop the engine. Stay away from swimming areas. Swimmers can be hard to see. The propeller can keep moving even when the motor is in neutral. Stop the engine when a person is in the water near you.
EMU33752
Passengers Consult your boat manufacturers instruc- tions for details about appropriate passenger locations in your boat and be sure all passen- gers are positioned properly before acceler- ating and when operating above an idle speed. Standing or sitting in non-designated locations may result in being thrown either overboard or within the boat due to waves, wakes, or sudden changes in speed or direc- tion. Even when people are positioned prop-
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Safety information
3
erly, alert your passengers if you must make any unusual maneuver. Always avoid jump- ing waves or wakes.
EMU33763
Overloading Do not overload the boat. Consult the boat capacity plate or boat manufacturer for max- imum weight and number of passengers. Be sure that weight is properly distributed ac- cording to the boat manufacturers instruc- tions. Overloading or incorrect weight distribution can compromise the boats han- dling and lead to an accident, capsizing or swamping.
EMU33773
Avoid collisions Scan constantly for people, objects, and oth- er boats. Be alert for conditions that limit your visibility or block your vision of others.
Operate defensively at safe speeds and keep a safe distance away from people, objects, and other boats. Do not follow directly behind other boats or
waterskiers. Avoid sharp turns or other maneuvers that
make it hard for others to avoid you or un- derstand where you are going.
Avoid areas with submerged objects or shallow water.
Ride within your limits and avoid aggres- sive maneuvers to reduce the risk of loss of control, ejection, and collision.
Take early action to avoid collisions. Re- member, boats do not have brakes, and stopping the engine or reducing throttle can reduce the ability to steer. If you are not sure that you can stop in time before hitting an obstacle, apply throttle and turn in an- other direction.
EMU48100
Collisions with floating or submerged objects If the outboard motor hits a floating object or an obstacle in the water while cruising, the following could occur: The passengers and any loose equipment
or luggage could be thrown forward due to the sudden deceleration.
Parts of the outboard motor could come loose as a result of the impact and could be thrown into the boat.
The boat or outboard motor could be dam- aged as a result of the impact.
When you operate the boat in an area where there might be floating objects or obstacles in the water, be sure to adjust the trim angle of the outboard motor, slow down, and operate carefully. For further information, see page 61. If the outboard motor hits a floating object or an obstacle in the water, make sure that there are no abnormalities with the boat and the outboard motor. If anything abnormal is found, return to the nearest harbor at low speed and have a Yamaha dealer inspect the outboard motor.
ZMU06025
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EMU33791
Weather Stay informed about the weather. Check weather forecasts before boating. Avoid boating in hazardous weather.
EMU44161
Accident reporting Boat operators are required by law to file a Boating Accident Report with their boating law enforcement agency if their boat is in- volved in any of the following accidents: (1) There is loss of life or probable loss of
life. (2) There is personal injury that requires
medical attention beyond first aid. (3) There is property damage to boats or
other property over a certain amount. (4) There is complete loss of a boat. Contact local law enforcement personnel if a report is necessary.
EMU44173
Boat education and training For U.S.A. Operators should take a boating safety course. This may be required in your state. Many of the organizations listed in the next section can provide information about cours- es in your area. You may also want to consider an Internet- based program for basic boater education. The Online Boating Safety Course provided by the Boat U.S. Foundation, is approved by the National Association of State Boating Law Administrators (NASBLA) and recog- nized by the United States Coast Guard. Most, but not all, states accept this course to meet their minimum requirements. While it cannot replace an in-depth course such as one offered by the U.S. Coast Guard, U.S. Power Squadron, or other organization, this online course does provide a general over- view of the basics in boating safety, require- ments, navigation, and operation. Upon successful completion of the course, the user can download a certificate of completion im- mediately or, for a small charge, request one by mail. To take this free course, go to boa- tus.org. For Canada All operators of pleasure craft must illustrate competency by means of a Pleasure Craft Operators Card with the exception of Person- al Water Craft used for rental purposes which require a rental checklist be completed. Plea- sure Craft Operators Cards can be obtained following the completion of a competency course, with an online option. Details can be found on Transport Canadas website. www.tc.gc.ca
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EMU33881
Passenger training Make sure at least one other passenger is trained to operate the boat in the event of an emergency.
EMU33891
Boating safety publications Be informed about boating safety. Additional publications and information can be obtained from many boating organizations.
EMU33592
Laws and regulations Know the marine laws and regulations where you will be boatingand obey them. Several sets of rules prevail according to geographic location, but all are basically the same as the International Rules of the Road. The rules presented in the following section are con- densedand have been provided for your convenience only. Contact the U.S. Coast Guard, the National Association of State Boating Law Administra- tors, or your local Power Squadron for a com- plete set of rules governing the waters in which you will be using your boat. EMU44742
Boating organizations The following organizations provide boating safety training and information about boating safety and laws.
In the U.S.A. United States Coast Guard Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Af- fairs U.S. Coast Guard Headquarters Washington, D.C. 20593-0001 https://www.uscgboating.org/
United States Power Squadrons 1-888-FOR-USPS (1-888-367-8777) https://www.usps.org/
Boat Owners Association of The United States 1-800-336-BOAT (1-800-336-2628) https://www.boatus.com/
National Association of State Boating Law Administrators (NASBLA) 1500 Leestown Road, Suite 330 Lexington, KY 40511 859-225-9497 https://www.nasbla.org/
National Marine Manufacturers Associa- tion (NMMA) 200 East Randolph Drive Suite 5100 Chicago, IL 60601 https://www.nmma.org/
Marine Retailers Association of America 155 N. Michigan Ave. Chicago, IL 60304 https://www.mraa.com/
In Canada National Marine Manufacturers Associa- tion Canada 14 McEwan Drive Suite 8 Bolton, ON L7E 1H1 https://www.nmma.ca/
In Australia Boating Industry Association of Australia https://www.bia.org.au/
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In New Zealand NZ Marine Industry Association https://www.nzmarine.com/
EMU33692
Basic boating rules (Rules of the road)
Just as there are rules that apply when you are driving on streets and highways, there are waterway rules that apply when you are driv- ing your boat. These rules are used interna- tionally. (For U.S.A.: and are also enforced by the United States Coast Guard and local agencies.) You should be aware of these rules, and follow them whenever you encoun- ter another vessel on the water.
EMU33702
Steering and sailing rules and sound signals Whenever two vessels on the water meet one another, one vessel has the right-of-way; it is called the stand-on vessel. The vessel that does not have the right-of-way is called the give-way or burdened vessel. These rules determine which vessel has the right-of-way, and what each vessel should do.
Stand-on vessel The vessel with the right-of-way has the duty to continue its course and speed, except to avoid an immediate collision. When you maintain your direction and speed, the other vessel will be able to determine how best to avoid you.
Give-way vessel The vessel that does not have the right-of- way has the duty to take positive and timely action to stay out of the way of the Stand-On vessel. Normally, you should not cross in front of the vessel with the right-of-way. You
should slow down or change directions brief- ly and pass behind the other vessel. You should always move in such a way that the operator of the other vessel can see what you are doing. The general prudential rule This rule is called Rule 2 in the International Rules and says, In obeying and construing these rules due regard shall be had to all dangers of naviga- tion and collision, and to any special circum- stances, which may render a departure from the above rules necessary in order to avoid immediate danger. In other words, follow the standard rules ex- cept when a collision will occur unless both vessels try to avoid each other. If that is the case, both vessels become Give-Way ves- sels.
EMU25524
Rules when encountering vessels There are three main situations that you may encounter with other vessels which could lead to a collision unless the Steering Rules are followed: Meeting: (you are approaching another ves- sel head-on) Crossing: (you are traveling across the other vessels path) Overtaking: (you are passing or being passed by another vessel) In the following illustration, your boat is in the center. You should give the right-of-way to any vessels shown in white area (you are the Give-Way vessel). Any vessels in the shaded area must yield to you (they are the Give-Way vessels). Both you and the meeting vessel must alter course to avoid each other.
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Meeting If you are meeting another power vessel head-on, and are close enough to run the risk of collision, neither of you has the right-of- way. Both of you should alter course to avoid an accident. You should keep the other ves- sel on your port (left) side. This rule doesnt apply if both of you will clear one another if you continue on your set course and speed.
Crossing When two power driven vessels are crossing each others path close enough to run the risk of collision, the vessel which has the other on the starboard (right) side must keep out of the way of the other. If the other vessel is on your right, you must keep out of its way; you are the Give-Way vessel. If the other vessel is on your port (left) side, remember that you should maintain course and direction, provid- ed the other vessel gives you the right-of-way as it should.
Overtaking If you are passing another vessel, you are the Give-Way vessel. This means that the other vessel is expected to maintain its course and speed. You must stay out of its way until you are clear of it. Likewise, if another vessel is passing you, you should maintain your speed and direction so that the other vessel can steer itself around you.
EMU25532
Other special situations There are three other rules you should be aware of when driving your boat around other vessels. Narrow channels and bends When navigating in narrow channels, you should keep to the right when it is safe and practical to do so. If the operator of a power- driven vessel is preparing to go around a bend that may obstruct the view of other wa- ter vessels, the operator should sound a pro- longed blast on the whistle (4 to 6 seconds). If another vessel is around the bend, it too should sound the whistle. Even if no reply is heard, however, the vessel should still pro- ceed around the bend with caution. If you navigate such waters with your boat, you will need to carry a portable air horn, available from local marine supply stores.
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Fishing vessel right-of-way All vessels that are fishing with nets, lines or trawls are considered to be fishing vessels under the International Rules. Vessels with trolling lines are not considered fishing ves- sels. Fishing vessels have the right-of-way regardless of position. Fishing vessels can- not, however, impede the passage of other vessels in narrow channels. Sailing vessel right-of-way Sailing vessels should normally be given the right-of-way. The exceptions to this are: (1) When the sailing vessel is overtaking the
power-driven vessel, the power-driven vessel has the right-of-way.
(2) Sailing vessels should keep clear of any fishing vessel.
(3) In a narrow channel, a sailing vessel should not hamper the safe passage of a power-driven vessel that can navigate only in such a channel.
Reading buoys and other markers The waters of the United States are marked for safe navigation by the lateral system of buoyage. Simply put, buoys and markers have an arrangement of shapes, colors, num- bers and lights to show which side of the buoy a boater should pass on when navigat- ing in a particular direction. The markings on these buoys are oriented from the perspec- tive of being entered from seaward (the boat- er is going towards the port). This means that red buoys are passed on the starboard (right) side when proceeding from open water into port, and black buoys are to port (left) side. When navigating out of port, your position with respect to the buoys should be reversed; red buoys should be to port and black buoys to starboard.
Many bodies of water used by boaters are entirely within the boundaries of a particular state. The Uniform State Waterway Marking System has been devised for these waters. This system uses buoys and signs with dis- tinctive shapes and colors to show regulatory or advisory information. These markers are white with black letters and orange boarders. They signify speed zones, restricted areas, danger areas, and general information. Remember, markings may vary by geograph- ic location. Always consult local boating au- thorities before driving your boat in unfamiliar waters.
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ZMU01708
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EMU25172
Identification numbers record
EMU25186
Outboard motor serial number The outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto- len.
EMU25192
Key number If a main key switch is equipped with the mo- tor, the key identification number is stamped on your key as shown in the illustration. Re- cord this number in the space provided for reference in case you need a new key.
EMU38984
EC Declaration of Conformity (DoC)
This declaration is included with outboard motors that conform to European regula- tions. This outboard motor conforms to certain por- tions of the European Parliament directive re- lating to machinery. Each conformed outboard motor accompa- nied with EC DoC. EC DoC contains the fol- lowing information; Manufacturer Model name Engine code Applied directives EMU48442
CE Marking / UKCA Marking This label is affixed to outboard motors that conform to European regulations.
1. Outboard motor serial number location
1. Serial number 2. Model name 3. Motor transom height 4. Engine code
1
34 12
ZMU01692
1. Key number
1
ZMU01694
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CE marking Outboard motors affixed with this CE mark- ing conform with the directives of; 2006/42/EC, 2014/30/EU, and 2013/53/EU. UKCA marking This product is in compliance with the Recre- ational Craft Regulations 2017, Electromag- netic Compatibility Regulations 2016 and Supply of Machinery (Safety) Regulations 2008. EMU46133
Compliance mark label Engines affixed with this label conform to the regulations for each country. This label is affixed to the clamp bracket or swivel bracket.
Regulatory Compliance Mark (RCM) Engines affixed with this mark conform to certain portion(s) of the Australian Radio Communications Act.
ICES-002 Compliance Label Engines affixed with this mark meet all re- quirements of the Canadian Interference Causing Equipment Regulations.
1. CE marking location
1
6EE-43394-9015210026
1. Compliance mark label location
1. Regulatory Compliance Mark (RCM)
1. ICES-002 Compliance Label
1
ZMU08190 1
ZMU08191
1
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EMU33524
Read manuals and labels Before operating or working on this outboard motor: Read this manual. Read any manuals supplied with the boat. Read all labels on the outboard motor and the boat. If you need any additional information, contact your Yamaha dealer.
EMU33836
Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements.
1
3 2
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EMU34652
Contents of labels The above warning labels mean as follows. 1 EWM01682
Keep hands, hair, and clothing away from rotating parts while the engine is running.
Do not touch or remove electrical parts when starting or during operation.
2 EWM01672
Read Owners Manuals and labels. Wear an approved personal flotation de-
vice (PFD).
Attach engine shut-off cord (lanyard) to your PFD, arm, or leg so the engine stops if you accidentally leave the helm, which could prevent a runaway boat.
EMU33851
Other labels
6EE-G2794-40
6EE-H1994-40
1 2
6EE-G2794-50
6EE-H1994-50
3
U6FN36E0.book Page 13 Tuesday, November 30, 2021 8:08 AM
General information
14
EMU35133
Symbols The following symbols mean as follows.
Notice/Warning
Read Owners Manual
Hazard caused by continuous rotation
Electrical hazard
EMU48010
Engine data recording This models ECM stores certain engine data to assist in the diagnosis of malfunctions and for research, statistical analysis and develop- ment purposes. Although the sensors and recorded data will vary by model, the main data points are: Engine status and engine performance
data This data will be uploaded only when a spe- cial Yamaha diagnostic tool is attached to the engine, such as when maintenance checks or service procedures are performed. Yamaha will not disclose this data to a third party except in the following cases. In addi- tion, Yamaha may provide engine data to a contractor in order to outsource services re- lated to the handling of the engine data. Even in this case, Yamaha will require the contrac- tor to properly handle the engine data we provided and Yamaha will appropriately manage the data. With the consent of the boat owner Where obligated by law For use by Yamaha in litigation For general Yamaha-conducted research
purposes when the data is not related to an individual engine or owner
ZMU05696
ZMU05664
ZMU05665
ZMU05666
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Specifications and requirements
15
EMU40501
Specifications TIP: (SUS) indicates that the specification is for the outboard motor when it is equipped with a stainless steel propeller.
EMU48360
Dimension and weight: Overall length:
826 mm (32.5 in) Overall width:
524 mm (20.6 in) Overall height L:
1629 mm (64.1 in) Overall height X:
1756 mm (69.1 in) Motor transom height L:
516 mm (20.3 in) Motor transom height X:
643 mm (25.3 in) Dry weight (SUS) L:
176 kg (388 lb) Dry weight (SUS) X:
180 kg (397 lb) Performance:
Full throttle operating range: 53006300 r/min
Rated power: 84.6 kW (115 HP)
Idle speed (in neutral): 700800 r/min
Power unit: Type:
4-stroke DOHC L4 16 valves Total displacement:
1832 cm (111.8 c.i.) Bore stroke:
81.0 88.9 mm (3.19 3.50 in) Ignition system:
TCI
Spark plug (NGK): LKR6E
Spark plug gap: 0.80.9 mm (0.0310.035 in)
Steering system: Remote steering
Starting system: Electric starter
Starting carburetion system: Fuel injection
Valve clearance IN (cold engine): 0.170.24 mm (0.00670.0094 in)
Valve clearance EX (cold engine): 0.310.38 mm (0.01220.0150 in)
Battery rating (CCA/SAE): 3801150 A
Battery rating (MCA/ABYC): 5021370 A
Battery rating (RC/SAE): 124 minutes
Battery rating (CCA/EN): 4301080 A
Battery rating (20HR/IEC): 70 Ah
Maximum generator output: 35 A
Lower unit: Gear shift positions:
Forward-neutral-reverse Gear ratio:
2.15 (28/13) Trim and tilt system:
Power trim and tilt Propeller mark:
K Fuel and oil:
Recommended fuel: Regular unleaded gasoline
Min. pump octane number (PON): 86
U6FN36E0.book Page 15 Tuesday, November 30, 2021 8:08 AM
Specifications and requirements
16
Min. research octane number (RON): 90
Recommended engine oil: YAMALUBE 4M FC-W or 4-stroke outboard motor oil
Recommended engine oil grade 1: SAE 10W-30/10W-40/5W-30 API SG/SH/SJ/SL
Engine oil quantity (without oil filter replacement):
3.0 L (3.17 US qt, 2.64 Imp.qt) Engine oil quantity (with oil filter replacement):
3.2 L (3.38 US qt, 2.82 Imp.qt) Lubrication system:
Wet sump Recommended gear oil:
Yamalube Marine Gearcase Lube HD or Hypoid gear oil
Recommended gear oil grade: SAE 90 API GL-4 / SAE 80W API GL-5 / SAE 90 API GL-5
Gear oil quantity: 0.760 L (0.803 US qt, 0.669 Imp.qt)
EMU33556
Installation requirements
EMU33566
Boat horsepower rating EWM01561
Overpowering a boat can cause severe in- stability.
Before installing the outboard motor(s), con- firm that the total horsepower of your out- board motor(s) does not exceed the boats maximum horsepower rating. See the boats capacity plate or contact the manufacturer.
EMU40491
Mounting outboard motor EWM02501
Improper mounting of the outboard mo- tor could result in hazardous conditions such as poor handling, loss of control, or fire hazards.
Because the outboard motor is very heavy, special equipment and training is required to mount it safely.
Your dealer or other person experienced in proper rigging should mount the outboard motor using correct equipment and complete rigging instructions. For further information, see page 44. EMU33582
Remote control requirements EWM01581
If the engine starts in gear, the boat can move suddenly and unexpectedly, pos- sibly causing a collision or throwing passengers overboard.
If the engine ever starts in gear, the start-in-gear protection device is not working correctly and you should dis- continue using the outboard. Contact your Yamaha dealer.
The remote control unit must be equipped with a start-in-gear protection device(s). This device prevents the engine from starting un- less it is in neutral. EMU25695
Battery requirements
EMU44724
Battery specifications Standard lead-acid, AGM, gel-cell, and main- tenance-free batteries are permitted. Use a fully charged battery that meets the following
U6FN36E0.book Page 16 Tuesday, November 30, 2021 8:08 AM
Specifications and requirements
17
specifications. The battery is an important component necessary to obtain sure engine starting and to maintain engine performance. The engine may not start if the battery voltage is too low. For North America It is necessary to meet only two of the three specifications (CCA, MCA, and RC) in one of the following combinations: CCA/SAE and RC MCA/ABYC and RC
For Oceania It is necessary to meet the following specifi- cations.
ECM01064
Do not use a battery that does not meet the specified capacity. If a battery that does not meet specifications is used, the electric system could perform poor- ly or be overloaded, causing electric system damage.
Do not use a battery which exceeds the maximum CCA rating. If the batteries are used in parallel circuit, use new bat- teries of the same type and make sure that the total battery rating never ex- ceeds the maximum CCA rating.
EMU36293
Mounting battery Mount the battery holder securely in a dry, well-ventilated, vibration-free location in the boat. WARNING! Do not put flammable items, or loose heavy or metal objects in the same compartment as the battery. Fire, explosion or sparks could result. [EWM01821]
Battery cable The battery cable size and length are critical. Consult your Yamaha dealer about the bat- tery cable size and length. EMU41283
Propeller selection Next to selecting an outboard motor, select- ing the right propeller is one of the most im- portant purchasing decisions a boater can make. The type, size, and design of your pro- peller have a direct impact on acceleration, top speed, fuel economy, and even engine life. Yamaha designs and manufactures pro- pellers for every Yamaha outboard motor and every application. Your Yamaha dealer can help you select the right propeller for your boating needs. Select a propeller that will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boat- load. Generally, select a larger pitch propeller for a smaller operating load and a smaller pitch propeller for a heavier load. If you carry loads that vary widely, select the propeller that lets the engine run in the proper range for your maximum load but remember that you may need to reduce your throttle setting to stay within the recommended engine speed range when carrying lighter loads.
Battery rating (CCA/SAE): 3801150 A
Battery rating (MCA/ABYC): 5021370 A
Battery rating (RC/SAE): 124 minutes
Battery rating (CCA/EN): 4301080 A
Battery rating (20HR/IEC): 70 Ah
U6FN36E0.book Page 17 Tuesday, November 30, 2021 8:08 AM
Specifications and requirements
18
Yamaha recommends Ventless Design For new 4-stroke VMAX SHO for your propeller. For further information, consult your Yamaha dealer. To check the propeller, see page 78. Propeller example
EMU25771
Start-in-gear protection Yamaha outboard motors or Yamaha-ap- proved remote control units are equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is in neutral. Always select neutral be- fore starting the engine. EMU41953
Engine oil requirements Select an oil grade according to the average temperatures in the area where the outboard motor will be used.
If oil grades listed under Recommended en- gine oil grade 1 are not available, select an al- ternative oil grade listed under Recommended engine oil grade 2. Recommended engine oil grade 1
Recommended engine oil grade 2
1. Propeller diameter in inches 2. Propeller pitch in inches 3. Type of propeller (propeller mark)
3 1
2 -x
1 2 3
A
A B
A
B
Recommended engine oil: YAMALUBE 4M FC-W or 4-stroke outboard motor oil
Recommended engine oil grade 1: SAE 10W-30/10W-40/5W-30 API SG/SH/SJ/SL
Recommended engine oil grade 2: SAE 15W-40/20W-40/20W-50 API SH/SJ/SL Engine oil quantity (without oil filter replacement):
3.0 L (3.17 US qt, 2.64 Imp.qt) Engine oil quantity (with oil filter re- placement):
3.2 L (3.38 US qt, 2.82 Imp.qt)
ZMU08143
122F
50C
104
40
86
30
68
SAE API
SG SH SJ SL
20
50
10
32
0
14
-10
-4
-20
10W30
10W40
5W30
ZMU06855
122F
50C
104
40
86
30
68
SAE API
SH SJ SL
20
50
10
32
0
14
-10
-4
-20
15W40
20W40
20W50
U6FN36E0.book Page 18 Tuesday, November 30, 2021 8:08 AM
Specifications and requirements
19
EMU36361
Fuel requirements
EMU44791
Gasoline Use a good quality gasoline that meets the minimum octane requirement. If knocking or pinging occurs, use a different brand of gas- oline or premium unleaded fuel. Yamaha rec- ommends that you use alcohol-free gasoline (see Gasoline with Ethanol) whenever possi- ble. The use of a poor quality gasoline may result in starting and running problems. If you en- counter drivability problems, which you sus- pect could be related to the fuel you are using, Yamaha recommends that you switch to a recognized high quality brand of gaso- line, such as a gasoline that is advertised as Top Tier Detergent Gasoline. (North America only) NOTICE: Failure to comply with these recommendations may also result in un- scheduled maintenance, fuel system dam- age, and internal engine damage. [ECM04480]
For North America
For Oceania
ECM01982
Do not use leaded gasoline. Leaded gasoline can seriously damage the en- gine.
Avoid getting water and contaminants in the fuel tank. Contaminated fuel can cause poor performance or engine dam- age. Use only fresh gasoline that has been stored in clean containers.
Gasoline with Ethanol Two types of gasoline are commonly avail- able in the U.S.A., Canada, Australia and New Zealand for use in automobiles and boats: conventional gasoline without Ethanol and gasoline with Ethanol, which is typically referred to as E10 gasoline. According to fed- eral regulations, E10 gasoline may contain up to 10% Ethanol. A high quality gasoline without Ethanol is the preferred fuel for your Yamaha outboard mo- tor. However, if gasoline with Ethanol is the only fuel available in your area, your Yamaha outboard motor is calibrated to run properly on fresh E10 gasoline that meets the mini- mum octane requirement specified for this model. ECM02402
Never use a gasoline for your outboard motor that contains more than 10% Etha- nol, such as E15 which contains 15% Eth- anol or E85 which contains 85% Ethanol, or gasoline containing any amount of Methanol. These fuels can cause starting and running problems, as well as serious fuel system and internal engine damage.
Gasoline containing ethanol has several properties that may cause boat fuel system problems. Ethanol is a strong solvent (cleaning agent)
that can clean gum and varnish deposits from a boats fuel system, particularly in older boats, as well as tanks and pipes used in gasoline distribution. These re-
Recommended fuel: Regular unleaded gasoline
Min. pump octane number (PON): 86
Recommended fuel: Regular unleaded gasoline
Min. research octane number (RON): 90
U6FN36E0.book Page 19 Tuesday, November 30, 2021 8:08 AM
Specifications and requirements
20
leased deposits contaminate the fuel and can cause problems, such as clogged fuel filters, carburetors, or fuel injectors, which could result in engine damage.
Ethanol may dissolve resins used in the construction of fiberglass fuel tanks. The dissolved resins contaminate the fuel and can cause problems, such as clogged fuel filters, carburetors, or fuel injectors, which could result in engine damage.
Ethanol is hygroscopic (has a strong at- traction to water). Therefore, any water that inadvertently enters the fuel system, in- cluding moisture that is absorbed from the air, will mix with the ethanol in the gasoline. If the amount of water is excessive, the eth- anol and water mixture will separate from the gasoline in a layer at the bottom of the fuel tank. This ethanol and water mixture is very corrosive to aluminum fuel tanks and fuel system components.
The usable life span of E10 gasoline may be shorter than the normal length of off- season boat storage, causing starting and running problems related to stale fuel.
For more information on using fuel containing ethanol, visit: http://www.yamaha-motor.com Gasoline Filtration Yamaha outboard motors are equipped with internal fuel filters. However, excessive water or debris entering your engines fuel system could prematurely clog the internal filters, causing starting and running problems, fuel system damage, and internal engine dam- age. Therefore, it is recommended that an ex- ternal 10-micron water-separating fuel filter be installed on your boat and serviced fre- quently. Consult your authorized Yamaha dealer for a 10-micron filter that meets your engines requirements.
EMU41342
Gasoline Additives Gasoline blends change to meet automobile emission regulations and economic condi- tions. Additives, added by gasoline distribu- tors, necessary for proper automobile engine operation and durability, may not be suffi- cient for typical boat applications. Intake valve and combustion chamber deposits may accumulate in boat engines more rapidly than encountered in automotive use. In addi- tion, gasoline used for boating will typically age longer between refills than gasoline used in automobiles, resulting in stale and unus- able gasoline that may cause starting and running problems, fuel system damage, and internal engine damage. Yamaha recommends the use of two Yamalube gasoline additives to reduce inter- nal deposits and extend the storage life of gasoline. Continuous use of Yamalube Ring Free Fuel Additive Plus reduces harmful inter- nal deposits. Yamalube Fuel Stabilizer & Conditioner Plus added to fresh gasoline will help protect the fuel system from varnishing while helping to keep the gasolines octane level from decreasing excessively during storage. Other additives may also be avail- able on the market that may have varying de- grees of effectiveness. Consult your Yamaha dealer concerning what may work best for the locally available gasoline and environ- mental conditions. EMU36881
Muddy or acidic water Yamaha strongly recommends that you have your dealer install the optional chromium- plated water pump kit if you use the outboard motor in muddy or acidic water conditions. However, depending on the model it might not be required.
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Specifications and requirements
21
EMU41354
Anti-fouling paint A clean hull is required to maintain your boats performance. Boats moored in the wa- ter should be protected from marine growth (barnacles, mussels, and marine plants). If approved by regulations for your area, the bottom of the hull can be coated with an anti- fouling paint to inhibit marine growth. Anti-fouling paints specifically formulated for use on aluminum may be applied to the out- board motor. The original Yamaha paint sur- face may be scuffed lightly before applying anti-fouling paint, but do not remove the orig- inal paint. Removal of the original paint will in- crease the rate of corrosion. ECM04821
Anti-fouling paint for fiberglass and wood may contain materials, such as copper, graphite, and tin, that can cause corrosion if applied to aluminum boats and outboard motor components. Never apply these types of paint to your out- board motor because rapid corrosion damage could occur.
Anti-fouling paint can increase drag (friction) between the boat and the wa- ter, and possibly affect performance. If the effects are too great, reducing pro- peller pitch may be necessary.
Sacrificial anodes are attached to the out- board motor to provide corrosion protection and must never be painted. Sacrificial anodes made from a different ma- terial may be necessary for maximum corro- sion protection due to your local water conditions. Please consult your Yamaha dealer.
ECM02421
Painted sacrificial anodes will not provide corrosion protection.
EMU40302
Outboard motor disposal re- quirements
Never illegally discard (dump) the outboard motor. Yamaha recommends consulting the dealer about discarding the outboard motor. EMU36353
Emergency equipment Keep the following items onboard in case there is trouble with the outboard motor. A tool kit with assorted screwdrivers, pliers,
wrenches (including metric sizes), and electrical tape.
Waterproof flashlight with extra batteries. An extra engine shut-off cord (lanyard) with
clip. Spare parts, such as an extra set of spark
plugs. Consult your Yamaha dealer for details. EMU25223
Emission control information
EMU25232
This engine conforms to U.S. Environmental Protection Agency (EPA) regulations for ma- rine SI engines. See the label affixed to your engine for details. EMU31563
Approval label of emission control certifi- cate This label is attached at the location shown. New Technology; (4-stroke) MFI
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Specifications and requirements
22
EMU25275
Star labels Your outboard motor is labeled with a Califor- nia Air Resources Board (CARB) star label. See below for a description of your particular label.
EMU40331
One StarLow Emission The one-star label identifies engines that meet the Air Resources Boards Personal Watercraft and Outboard marine engine 2001 exhaust emission standards. Engines meet- ing these standards have 75% lower emis- sions than conventional carbureted two- stroke engines. These engines are equivalent to the U.S. EPAs 2006 standards for marine engines.
EMU40341
Two StarsVery Low Emission The two-star label identifies engines that meet the Air Resources Boards Personal Watercraft and Outboard marine engine 2004 exhaust emission standards. Engines meet- ing these standards have 20% lower emis- sions than One Star-Low-Emission engines.
1. Approval label location
1. Star label location
1
EMISSION CONTROL INFORMATION THIS ENGINE CONFORMS TO CALIFORNIA EXHAUST AND U.S. EPA EXHAUST AND EVAP REGULATIONS FOR SI MARINE ENGINES. REFER TO OWNERS MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS. FAMILY : DISPLACEMENT : liters MAX POWER : kW EPA/CA FEL : HC+NOx ,CO g/kW-h EPA CERTIFIED EVAP COMPONENTS :
YAMAHA MOTOR CO.,LTD.
ZMU06894
1
ZMU01702
ZMU01703
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Specifications and requirements
23
EMU40351
Three StarsUltra Low Emission The three-star label identifies engines that meet the Air Resources Boards Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and Inboard marine engine 2003-2008 ex- haust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines.
EMU33862
Four StarsSuper Ultra Low Emission The four-star label identifies engines that meet the Air Resources Boards Sterndrive and Inboard marine engine 2009 exhaust emission standards. Personal Watercraft and Outboard marine engines may also comply with these standards. Engines meeting these standards have 90% lower emissions than One Star-Low-Emission engines.
ZMU01704
ZMU05663
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Components
24
EMU46722
Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer).
1
2
3
4
5
6
10 11
12
8
9
7
1. Top cowling 2. Cowling lock lever 3. Power trim and tilt unit 4. Clamp bracket 5. Anode 6. Cooling water inlet 7. Propeller* 8. Trim tab (anode) 9. Anti-cavitation plate 10.Flushing device 11.Power trim and tilt switch 12.Fuse box
U6FN36E0.book Page 24 Tuesday, November 30, 2021 8:08 AM
Components
25
7
1
2
3
4
5 8
9
6
1. Oil filler cap 2. Cowling lock lever 3. Fuel filter 4. Cooling water pilot hole 5. Drain screw 6. Gear oil drain screw 7. Cooling water inlet 8. Oil level plug 9. Oil dipstick
U6FN36E0.book Page 25 Tuesday, November 30, 2021 8:08 AM
Components
26
EMU46733
Optional items The following items are available from your Yamaha dealer. For details, consult your Yamaha dealer.
EMU46753
Yamaha Security System (Y-COP/Op- tional) ECM02461
The Yamaha Security System is sold in conformity with the relevant laws and reg- ulations regarding radio wave transmis- sion. Therefore, if this product is used outside the country where it was sold, it may violate the laws or regulations re-
TRIP TIME BATT
Km/h knot mph
km mile
SPEED
YAMAHA
set mode
SET MODE SET MODE
5
2 41 3
876
9 10
1. Remote control box (side mount type) 2. Remote control box (binnacle mount type) 3. Switch panel (for use with side-mount type) 4. Switch panel (for use with binnacle type) 5. Digital tachometer 6. Digital speedometer 7. 6Y8 Multifunction tachometer 8. 6Y8 Multifunction speed & fuel meter 9. Tiller handle 10.Yamaha Security System (Y-COP)
U6FN36E0.book Page 26 Tuesday, November 30, 2021 8:08 AM
Components
27
garding radio wave transmission in the country it is used in. For details, consult your Yamaha dealer.
The Yamaha Security System, which pro- tects against theft, consists of the receiver and key fobs. The Yamaha Security System is available from your Yamaha dealer. For de- tails, consult your Yamaha dealer.
The engine cannot be started if the security system is in the lock mode. The engine can be started only in the unlock mode. For more information, see the installation and owners manual included with the security system.
EMU40611
Remote control box The remote control box is equipped with the remote control lever and electrical switches.
EMU26191
Remote control lever Moving the lever forward from the neutral po- sition engages forward gear. Pulling the lever back from neutral engages reverse. The en- gine will continue to run at idle until the lever is moved about 35 (a detent can be felt). Moving the lever farther opens the throttle, and the engine will begin to accelerate.
1. Key fob 2. Receiver
1. Power trim and tilt switch 2. Remote control lever
1 2
1
2
3
5
4
6
3. Free accelerator button 4. Engine shut-off switch 5. Throttle friction adjuster 6. Neutral interlock trigger
1. Power trim and tilt switch 2. Remote control lever 3. Free accelerator button 4. Throttle friction adjuster
1. Neutral 2. Forward 3. Reverse 4. Fully closed 5. Throttle
2
1
3 4
N 1F
6
5
2 R
3 35 35
5 4
6
4
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Components
28
EMU40631
Neutral interlock trigger The neutral interlock prevents the remote control lever from accidentally being moved forward or rearward from the neutral position. To move the remote control lever forward or rearward from the neutral position, pull the neutral interlock trigger up, and then move the remote control lever.
EMU26234
Free accelerator To open the throttle without shifting into ei- ther forward or reverse, push the free accel- erator button and move the remote control lever.
TIP: The free accelerator button can only be
pushed when the remote control lever is in the neutral position.
After the button is pushed, the throttle be- gins to open after the remote control lever is moved at least 35.
After using the free accelerator, return the remote control lever to the neutral position. The free accelerator button will return auto-
6. Fully open
1. Neutral 2. Forward 3. Reverse 4. Fully closed 5. Throttle 6. Fully open
1. Neutral interlock trigger
N 1F
6
5
2 R
3 35 35
5 4
6
4
1
1. Free accelerator button 2. Fully closed 3. Fully open
1. Free accelerator button 2. Fully closed 3. Fully open
1
N
2
3
35
3
1
2
N
U6FN36E0.book Page 28 Tuesday, November 30, 2021 8:08 AM
Components
29
matically to its set position. The remote control will then engage forward and re- verse normally.
EMU40606
Throttle friction adjuster The throttle friction adjuster can be used to adjust the resistance to movement of the re- mote control lever, and can be set according to operator preference. Adjust the throttle friction according to the following procedure. (1) Remove the cap.
(2) To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise. WARNING! Do not overtighten the fric- tion adjuster. If there is too much re- sistance, it could be difficult to move the remote control lever, which could result in an accident. [EWM02581]
(3) Install the cap.
EMU25996
Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run. The cord should be attached to a secure place on the operators clothing, or arm or leg. Should the operator fall overboard or leave the helm, the cord will pull out the clip, stopping ignition to the engine. This will prevent the boat from running away under power. WARNING! At- tach the engine shut-off cord to a secure place on your clothing, or your arm or leg while operating. Do not attach the cord to clothing that could tear loose. Do not route the cord where it could become en- tangled, preventing it from functioning. Avoid accidentally pulling the cord during normal operation. Loss of engine power
1. Cap
1. Cap
1
1
1. Throttle friction adjuster
1. Throttle friction adjuster
1
1
U6FN36E0.book Page 29 Tuesday, November 30, 2021 8:08 AM
Components
30
means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause peo- ple and objects in the boat to be thrown forward. [EWM00123]
EMU26092
Main switch The main switch controls the ignition system; its operation is described below. (off) With the main switch in the (off) posi- tion, the electrical circuits are off, and the key can be removed. (on)
With the main switch in the (on) position, the electrical circuits are on, and the key can- not be removed. (start) With the main switch in the (start) po- sition, the starter motor turns to start the en- gine. When the key is released, it returns automatically to the (on) position.
EMU32054
Power trim and tilt switch on remote control The power trim and tilt system adjusts the outboard motor angle in relation to the tran- som. Pushing the switch (up) trims the outboard motor up, and then tilts it up. Push- ing the switch (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position. For instructions on using the power trim and tilt switch, see pages 57 and 59.
1. Engine shut-off cord (lanyard) 2. Clip 3. Engine shut-off switch
1. Engine shut-off cord (lanyard) 2. Clip 3. Engine shut-off switch
3
2 1
1 2
3
ZMU06245
ON OFF START
ZMU07019
ON OFF START
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Components
31
EMU26156
Power trim and tilt switch on bottom cowling The power trim and tilt switch is located on the side of the bottom cowling. Pushing the switch (up) trims the outboard motor up, and then tilts it up. Pushing the switch (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current po- sition. For instructions on using the power trim and tilt switch, see page 59. EWM01032
Use the power trim and tilt switch located on the bottom cowling only when the boat is at a complete stop with the engine off. Attempting to use this switch while the
boat is moving could increase the risk of falling overboard and could distract the operator, increasing the risk of collision with another boat or an obstacle.
EMU46741
Tiller handle operation This outboard motor can also be operated using a tiller handle. For details about the tiller handle, consult your Yamaha dealer.
EMU26246
Trim tab with anode EWM00841
An improperly adjusted trim tab could cause difficult steering. Always test run af- ter the trim tab has been installed or re- placed to be sure steering is correct. Be sure you have tightened the bolt after ad- justing the trim tab.
1. Power trim and tilt switch
1. Power trim and tilt switch
DN
1
UP
UP DN
1
1. Power trim and tilt switch
1
UP
DN
ZMU08528
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Components
32
The trim tab should be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force. If the boat tends to veer to the left (port side), turn the trim tab rear end to the port side A in the figure. If the boat tends to veer to the right (starboard side), turn the trim tab end to the starboard side B in the figure. ECM00841
The trim tab also serves as an anode to protect the engine from electrochemical corrosion. Never paint the trim tab as it will become ineffective as an anode.
EMU26342
Tilt support lever for power trim and tilt model To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp bracket.
ECM00661
Do not use the tilt support lever or knob when trailering the boat. The outboard motor could shake loose from the tilt sup- port and fall. If the motor cannot be trailered in the normal running position, use an additional support device to secure it in the tilt position.
EMU40762
Cowling lock lever The cowling lock levers are used to secure the top cowling.
1. Cap 2. Bolt 3. Trim tab
Bolt tightening torque: 42 Nm (4.2 kgfm, 31 lbft)
3
2 1
A B
ZMU08077
1. Tilt support lever
1. Cowling lock lever
1
1
U6FN36E0.book Page 32 Tuesday, November 30, 2021 8:08 AM
Components
33
EMU40803
Flushing device The flushing device is used to clean the cool- ing water passages of the outboard motor using a garden hose and tap water. For in- structions on using the flushing device, see page 66.
EMU40823
Fuel filter The fuel filter functions to remove foreign ma- terial and separate water from the fuel. If wa- ter separated from the fuel exceeds a specific volume, the alert system will activate. For fur- ther information, see page 42.
TIP: Adding an in-line 10-micron fuel filter has been shown to greatly reduce the chance of fuel contamination problems. Consult your dealer for information about Yamaha 10-mi- cron fuel filters if your boat does not have one.
1. Cowling lock lever
1. Flushing device
1
1
1. Fuel filter
1
U6FN36E0.book Page 33 Tuesday, November 30, 2021 8:08 AM
Instruments and indicators
34
EMU41391
Digital tachometer The tachometer shows the engine speed and has the following functions. All segments of the display will light momen- tarily after the main switch is turned on and will return to normal thereafter.
EMU36051
Tachometer The tachometer displays engine speed in hundreds of revolutions per minute (r/min). For example, if the tachometer display reads 22 then the engine speed is 2200 r/min.
EMU26622
Trim meter This meter shows the trim angle of your out- board motor. Memorize the trim angles that work best for
your boat under different conditions. Ad- just the trim angle to the desired using the power trim and tilt switch.
If the trim angle of your motor exceeds the trim operating range, the top segment on the trim meter display will blink.
EMU26652
Hour meter This meter shows the number of hours the engine has been run. It can be set to show the total number of hours or the number of hours for the current trip. The display can also be turned on and off.
To change the display format, press the (mode) button. The display can show total hours or trip hours, or turn off. To reset the trip hours, simultaneously press the (set) and (mode) buttons for more than 1 second while the trip hours are displayed. This resets the trip counter to 0 (zero). The total number of hours the engine has been run cannot be reset.
1. Tachometer 2. Trim meter 3. Hour meter 4. Low oil pressure-alert indicator 5. Overheat-alert indicator 6. Set button 7. Mode button
1
5
2
4
3
6 7
ZMU01740
ZMU01741
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Instruments and indicators
35
EMU40812
Low oil pressure-alert indicator If oil pressure drops too low, the alert indica- tor will start to blink. For further information, see page 41. ECM02302
Do not continue to operate the engine if the low oil pressure-alert indicator is on and the engine oil pressure is low. Seri- ous engine damage will occur.
The low oil pressure-alert indicator does not indicate the engine oil level. Use the oil dipstick to check the oil level. For fur- ther information, see page 48.
EMU26584
Overheat-alert indicator If the engine temperature rises too high, the alert indicator will start to blink. For further in- formation on reading the indicator, see page 41. ECM00053
Do not continue to run the engine if the overheat-alert indicator is on. Serious en- gine damage will occur.
EMU26603
Digital speedometer This gauge shows the boat speed and other information.
All segments of the display will light momen- tarily after the main switch is turned on and will return to normal thereafter.
EMU36062
Speedometer The speedometer displays km/h, mph, or knots, according to operator preference. Se- lect the desired units of measurement by set- ting the selector switch on the back of the gauge. See the illustration for settings.
1. Low oil pressure-alert indicator
ZMU017361
1. Overheat-alert indicator
1. Speedometer 2. Fuel gauge 3. Trip meter/clock/voltmeter 4. Alert indicator(s)
ZMU01737
1
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set mode
1 2
4 3
U6FN36E0.book Page 35 Tuesday, November 30, 2021 8:08 AM
Instruments and indicators
36
EMU26714
Fuel gauge Eight segments indicate the fuel level. When all segments are showing, the fuel tank is full.
The fuel level reading can be inaccurate due to the position of the sensor in the fuel tank and the attitude of the boat in the water. Op- eration with bow-up trim or continuous turn- ing can give false readings. Do not adjust the selector switch for fuel sen- sor. Incorrectly setting the selector switch on the gauge will give false readings. Consult your Yamaha dealer on how to correctly set the selector switch. NOTICE: Running out of fuel can damage the engine. [ECM01771]
EMU36072
Trip meter / Clock / Voltmeter The display shows either the trip meter, the clock, or the voltmeter. To change the display, press the (mode) button repeatedly until the indicator on the face of the gauge points to (trip meter), (clock), or (voltmeter). EMU26692
Trip meter This gauge displays the distance the boat has traveled since the gauge was last reset. The trip distance is shown in kilometers or miles depending upon the unit of measure- ment selected for the speedometer. To reset the trip meter to zero, press the (set) and (mode) buttons at the same time. The trip distance is kept in memory by battery power. The stored data will be lost if the bat- tery is disconnected.
EMU40842
Clock To set the clock (1) Push the (mode) button to
change the display to the (clock) mode.
(2) Push the (set) button. The hour dis- play will begin blinking.
(3) Push the (mode) button until the desired hour value is displayed.
(4) Push the (set) button again. The 10- minute display will begin blinking.
1. Cap 2. Selector switch (for speed unit) 3. Selector switch (for fuel sensor)
km/h (km)
mph (mile)
knots (mile)
1 2
3 4
ZMU07001
3
1
2
ZMU07002 TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set mode
ZMU07003
U6FN36E0.book Page 36 Tuesday, November 30, 2021 8:08 AM
Instruments and indicators
37
(5) Push the (mode) button until the desired 10-minute value is displayed.
(6) Push the (set) button again. The 1- minute display will begin blinking.
(7) Push the (mode) button until the desired 1-minute value is displayed.
(8) Push the (set) button again to start the clock.
The clock operates on battery power. Dis- connecting the battery will stop the clock. Reset the clock after connecting the battery. EMU36081
Voltmeter The voltmeter displays the charge of the bat- tery in volts(V).
EMU26723
Fuel level-alert indicator If the fuel level decreases to one segment, the fuel level alert segment will blink. Do not continue to operate the engine at full throttle if an alert device has activated. Get back to the port using trolling engine speed. NOTICE: Running out of fuel can damage the engine. [ECM01771]
EMU26733
Low battery voltage-alert indicator If battery voltage drops, the display will auto- matically turn on and blink. Get back to the port soon if an alert device has activated. For charging the battery, con- sult your Yamaha dealer.
EMU46654
6Y8 Multifunction meters There are two types of 6Y8 Multifunction me- ters. 6Y8 Multifunction tachometer 6Y8 Multifunction speed & fuel meter
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set mode
ZMU07004
1. Fuel level-alert segment
1. Low battery indicator
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set mode
1
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set mode
ZMU07006
1
U6FN36E0.book Page 37 Tuesday, November 30, 2021 8:08 AM
Instruments and indicators
38
6Y8 Multifunction tachometer
6Y8 Multifunction speed & fuel meter
TIP: The information displayed on the multifunc- tion display can be changed. For information on other settings or changing the displayed information, see the operation manual includ- ed with the 6Y8 Multifunction meter.
This manual mainly covers the alert display of the 6Y8 Multifunction tachometer. See the following sections for information about the alert indicators. Indicators
1. Set button 2. Mode button
1. Tachometer 2. Trim meter 3. Multifunction display
1. Set button 2. Mode button
SET MODE
21 ZMU08407
1 2
3
ZMU08408
SET MODE
21 ZMU08409
1. Speedometer 2. Fuel meter 3. Multifunction display
1. Yamaha Security System indicator (optional) 2. Water separator-alert indicator 3. Engine trouble-alert indicator 4. Battery voltage indicator 5. Overheat-alert indicator 6. Low oil pressure-alert indicator
1
3
2
ZMU08410
1
7 6 5 4
2 3
ZMU08411
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Instruments and indicators
39
Yamaha Security System indicator (op- tional) This indicator appears, when the Yamaha Se- curity System is in lock mode. Lock mode
Make sure that the Yamaha Security System indicator is off before starting the engine. Water separator-alert indicator If water has accumulated in the water sepa- rator (fuel filter) while cruising, the water sep- arator-alert indicator will start to blink.
Stop the engine immediately and see page 87 of this manual to drain the water from the fuel filter. Get back to the port soon and con- sult a Yamaha dealer immediately.
ECM00911
Gasoline mixed with water could cause damage to the engine.
Engine trouble-alert indicator If the engine malfunctions while cruising, the engine trouble-alert indicator will start to blink. Get back to the port soon and consult a Yamaha dealer immediately.
ECM00921
In such an event, the engine will not oper- ate properly. Consult a Yamaha dealer im- mediately.
Low battery voltage alert If the battery voltage drops, the battery volt- age value will start to blink.
7. Cooling water pressure indicator (optional)
1. Yamaha Security System indicator (optional)
1. Water separator-alert indicator
SET MODE
1
ZMU08412
1
ZMU08413
1. Engine trouble-alert indicator
1. Battery voltage value
1
ZMU08414
1 ZMU08415
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Instruments and indicators
40
Get back to the port soon if the low battery voltage alert device has activated. For charg- ing the battery, consult your Yamaha dealer. Overheat-alert indicator If the engine temperature rises too high while cruising, the overheat-alert indicator will start to blink, and the engine speed will automati- cally decrease to about 20003500 r/min.
Stop the engine immediately if the buzzer sounds and the overheat device has activat- ed. Check the cooling water inlet for clog- ging. ECM01594
Do not continue to run the engine if the overheat-alert indicator blinks. Serious engine damage will occur.
Do not continue to operate the engine if an alert device has activated. Consult your Yamaha dealer if the problem can- not be located and corrected.
Low oil pressure-alert indicator If the engine oil pressure drops too low, the low oil pressure-alert indicator will start to blink, and the engine speed will automatically decrease to about 20003500 r/min.
Stop the engine immediately if the buzzer sounds and the low oil pressure-alert indica- tor blinks. Check the engine oil level and re- plenish oil if necessary. If the alert device has activated while the appropriate engine oil lev- el is maintained, consult your Yamaha dealer. ECM01602
Do not continue to run the engine if the low oil pressure alert device has activated. Serious engine damage will occur.
1. Overheat-alert indicator
1
ZMU08416
1. Low oil pressure-alert indicator
1
ZMU08417
U6FN36E0.book Page 40 Tuesday, November 30, 2021 8:08 AM
Engine control system
41
EMU26806
Alert system ECM00093
Do not continue to operate the engine if an alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected.
EMU43754
Overheat alert This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate. The engine speed will automatically de-
crease to 20003500 r/min. The overheat-alert indicator will light or
blink (if equipped).
The buzzer will sound (if equipped on the tiller handle, remote control box, or main switch panel).
If the alert system has activated, stop the en- gine and check the cooling water inlets: Check trim angle to be sure that the cooling
water inlet is submerged. Check the cooling water inlet for clogging.
EMU41182
Low oil pressure alert The outboard motor is equipped with a low oil pressure alert system. If the engine oil pres- sure is low, the alert system will activate. The engine speed will automatically de-
crease to about 20003500 r/min. The low oil pressure-alert indicator will
come on or blink.
The buzzer will sound.
ZMU01757
ZMU06297
ZMU07012
ZMU01828
U6FN36E0.book Page 41 Tuesday, November 30, 2021 8:08 AM
Engine control system
42
If the alert system has activated, stop the en- gine as soon as it is safe to do so. Check the oil level and add engine oil as needed. If the oil level is correct and the alert system does not switch off, consult your Yamaha dealer.
EMU43953
Water separator alert The outboard motor is equipped with a water separator alert system. If water separated from the fuel exceeds a specific volume, the alert system will activate. The water separator-alert indicator will
come on or blink.
The buzzer will sound intermittently when the remote control lever is in the neutral po- sition.
If the alert system has activated, stop the en- gine and check the fuel filter. If any water is found in the fuel, consult a Yamaha dealer.
ZMU06297
ZMU07012
1. Water separator-alert indicator
1
ZMU06297
ZMU07012
U6FN36E0.book Page 42 Tuesday, November 30, 2021 8:08 AM
Engine control system
43
ECM02341
Although the buzzer will stop when the en- gine is started and the remote control le- ver is moved to the forward or reverse position, do not use the outboard motor. Otherwise, serious engine damage could occur.
U6FN36E0.book Page 43 Tuesday, November 30, 2021 8:08 AM
Installation
44
EMU41213
Installation The information presented in this section is intended as reference only. It is not possible to provide complete instructions for every possible boat and outboard motor combina- tion. Proper mounting depends in part on ex- perience and the specific boat and outboard motor combination. EWM02573
Overpowering a boat could cause se- vere instability. Do not mount an out- board motor with more horsepower than the maximum rating on the capaci- ty plate of the boat. If the boat does not have a capacity plate, consult the boat manufacturer.
Improper mounting of the outboard mo- tor could result in hazardous conditions, such as poor handling, loss of control, or fire hazards. Have your Yamaha deal- er mount the outboard motor properly.
EMU41271
Mounting the outboard motor The outboard motor should be mounted so that the boat is well balanced. Otherwise, the boat could be hard to steer. Mount the out- board motor on the centerline (keel line) of the boat.
EMU41065
Mounting height The mounting height of your outboard motor affects its efficiency and reliability. If it is mounted too high, propeller ventilation may occur, which will reduce propulsion due to excessive propeller slip, and the cooling wa- ter inlet for the cooling system may not get an adequate water supply, which can cause en- gine overheating. If the engine is mounted too low, water resistance (drag) will increase, thereby reducing engine efficiency and per- formance. The optimum mounting height depends on the combination of the boat and outboard motor. Consult your Yamaha dealer or boat manufacturer for further information on deter- mining the proper mounting height. ECM01635
Make sure that the idle hole is high enough to prevent water from entering the engine even if the boat is stationary with the maximum load.
Incorrect engine height or obstructions to the smooth flow of water (such as the design or condition of the boat, or ac- cessories, such as transom ladders or depth finder transducers) can create air- borne water spray while the boat is cruising. If the outboard motor is oper- ated continuously in the presence of air- borne water spray, enough water could enter the engine through the air intake opening in the top cowling to cause se- vere engine damage. Remove the cause of the airborne water spray.
1. Center line (keel line)
1
U6FN36E0.book Page 44 Tuesday, November 30, 2021 8:08 AM
Installation
45
1. Idle hole
1
U6FN36E0.book Page 45 Tuesday, November 30, 2021 8:08 AM
Operation
46
EMU36382
First-time operation
EMU36393
Fill engine oil The engine is shipped from the factory with- out engine oil. If your dealer did not fill the oil, you must fill it before starting the engine. NOTICE: Check that the engine is filled with oil before first-time operation to avoid severe engine damage. [ECM01782]
The engine is shipped with the following tag, which should be removed after engine oil is filled for the first time. For more information on checking the engine oil level, see page 48.
EMU30175
Breaking in engine Your new engine requires a period of break- in to allow mating surfaces of moving parts to wear in evenly. Correct break-in will help en- sure proper performance and longer engine
life. NOTICE: Failure to follow the break-in procedure could result in reduced engine life or even severe engine damage. [ECM00802]
EMU27086
Procedure for 4-stroke models Your new engine requires a period of 10 hours break-in to allow mating surfaces of moving parts to wear in evenly.
TIP: Run the engine in the water, under load (in gear with a propeller installed) as follows. For 10 hours for breaking in engine avoid extend- ed idling, rough water and crowded areas. (1) For the first hour of operation:
Run the engine at varying speeds up to 2000 r/min or approximately half throttle.
(2) For the second hour of operation: Increase engine speed as much as nec- essary to put the boat on plane (but avoid full-throttle operation), then back off on the throttle while keeping the boat at a planing speed.
(3) Remaining 8 hours: Run the engine at any speed. However, avoid operating at full throttle for more than 5 minutes at a time.
(4) After the first 10 hours: Operate the engine normally.
EMU36402
Getting to know your boat All boats have unique handling characteris- tics. Operate cautiously while you learn how your boat handles under different conditions and various trim angles (see page 57).
ZMU01710
U6FN36E0.book Page 46 Tuesday, November 30, 2021 8:08 AM
Operation
47
EMU36414
Checks before starting engine EWM01922
If any item in Checks before starting en- gine is not working properly, have it in- spected and repaired before operating the outboard motor. Otherwise, an accident could occur.
ECM00121
Do not start the engine out of water. Over- heating and serious engine damage can occur.
EMU36422
Fuel level Be sure you have plenty of fuel for your trip. A good rule is to use 1/3 of your fuel to get to the destination, 1/3 to return, and to keep 1/3 as an emergency reserve. With the boat level on a trailer or in the water, turn the key to (on) and check the fuel level. For fuel filling in- structions, see page 51.
EMU40774
Removing top cowling For the following checks, remove the top cowling from the bottom cowling. To remove the top cowling, pull the cowling lock levers and lift up the top cowling.
EMU36443
Fuel system EWM00061
Gasoline and its vapors are highly flamma- ble and explosive. Keep away from sparks, cigarettes, flames, or other sources of ig- nition.
EWM00911
Leaking fuel can result in fire or explosion. Check for fuel leakage regularly. If any fuel leakage is found, the fuel sys-
tem must be repaired by a qualified me- chanic. Improper repairs can make the outboard unsafe to operate.
EMU36453
Check for fuel leaks Check for fuel leaks or gasoline fumes in
the boat. Check for fuel leakage from the fuel sys-
tem. Check the fuel tank and fuel lines for
cracks, swellings, or other damage.
1. Cowling lock lever
1
1. Cowling lock lever
1
U6FN36E0.book Page 47 Tuesday, November 30, 2021 8:08 AM
Operation
48
EMU37323
Checking the fuel filter Check that the fuel filter is clean and free of water. If any water is found in the fuel, or if a significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer.
EMU40542
Controls Turn the steering wheel fully to port and
starboard. Check that operation is smooth and unrestricted throughout the whole range with no binding or excessive free play.
Operate the remote control lever several times to check that there is no hesitation in its travel. Operation should be smooth over the complete range of motion.
Inspect the throttle and shift cable connec- tions for damage and looseness.
EMU36484
Engine shut-off cord (lanyard) Inspect the engine shut-off cord and clip for damage, such as cuts, breaks, and wear.
EMU40994
Engine oil (1) Place the outboard motor in a vertical
position (not tilted). NOTICE: If the out- board motor is not level, the oil level indicated on the oil dipstick may not be accurate. [ECM01862]
(2) Remove the oil dipstick and wipe it clean.
(3) Insert the oil dipstick completely and re- move it again.
1. Fuel filter
1
ZMU08184
1. Clip 2. Engine shut-off cord (lanyard)
1. Oil dipstick
ZMU06873
1
2
1
U6FN36E0.book Page 48 Tuesday, November 30, 2021 8:08 AM
Operation
49
(4) Check that the oil level on the oil dipstick is between the upper and lower marks. Consult your Yamaha dealer if the oil lev- el is not at the proper level or if it appears milky or dirty.
EMU40412
Outboard motor Check that the outboard motor is mounted
properly and check the outboard motor mounting bolts for looseness.
Check the propeller for damage. Check for engine oil leaks.
EMU36494
Flushing device Check that the flushing devices garden hose connector is securely screwed on to the fit- ting on the bottom cowling. NOTICE: If the garden hose connector is not properly connected, cooling water can leak out and the engine can overheat during operation. [ECM01802]
EMU36965
Install cowling (1) Be sure that all cowling lock levers are
released. (2) Be sure that the rubber seal is seated all
the way around the top cowling.
(3) Place the top cowling on the bottom cowling.
(4) Check to be sure the rubber seal is seat- ed correctly between the top cowling and the bottom cowling.
(5) Move the cowling lock levers to lock the top cowling as shown. NOTICE: If the top cowling is not installed correctly,
1. Oil dipstick 2. Upper mark 3. Lower mark
3 2 1
1. Fitting 2. Garden hose connector 3. Flushing device
1. Top cowling 2. Rubber seal
123
1
2
U6FN36E0.book Page 49 Tuesday, November 30, 2021 8:08 AM
Operation
50
water spray under the top cowling can damage the engine, or the top cowling can blow off at high speeds. [ECM01992]
After installing, check the fitting of the top cowling by pushing it with both hands. If the top cowling is loose, have it repaired by your Yamaha dealer.
EMU34582
Power trim and tilt system EWM01931
Never get under the lower unit while it is tilted, even when the tilt support lever is locked. Severe injury could occur if the outboard motor accidentally falls.
Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted.
Be sure no one is near the outboard mo- tor before performing this check.
(1) Check the power trim and tilt unit for any sign of oil leaks.
(2) Operate each of the power trim and tilt switches to check that all switches work.
(3) Tilt the outboard motor up and check that the trim and tilt rod is pushed out completely.
(4) Check that the trim and tilt rod is free of corrosion or other flaws.
(5) Tilt the outboard motor down. Check that the trim and tilt rod operates smoothly.
EMU36585
Battery Check the batterys charge. If your boat is equipped with a Yamaha digital speedome- ter, the voltmeter and low battery alert func-
1. Cowling lock lever
1. Cowling lock lever
1
1
ZMU07760
1. Trim and tilt rod
1
ZMU08094
U6FN36E0.book Page 50 Tuesday, November 30, 2021 8:08 AM
Operation
51
tions will help you monitor the batterys charge. A battery in good condition will pro- vide a minimum of 12 volts. Check that the battery connections are clean, secure and covered by insulating covers. The electrical connections of the battery and cables must be clean and properly connected or the bat- tery will not start the engine. If the battery needs charging, consult your Yamaha dealer or the battery manufacturers instructions. EMU30027
Filling fuel EWM01831
Gasoline and its vapors are highly flam- mable and explosive. Always refuel ac- cording to this procedure to reduce the risk of fire and explosion.
Gasoline is poisonous and can cause in- jury or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow some gasoline or inhale a lot of gasoline vapor, or get some gas- oline in your eyes, see your doctor im- mediately. If gasoline spills on your skin, wash with soap and water. If gasoline spills on your clothing, change your clothes.
(1) Make sure that the engine is stopped. (2) Make sure that the boat is in a well-ven-
tilated outdoor area, either securely moored or trailered.
(3) Make sure that no one is in the boat. (4) Do not smoke and keep away from
sparks, flames, static electric discharge, or other sources of ignition.
(5) If you use a portable container to store and dispense fuel, only use a locally ap- proved GASOLINE container.
(6) Touch the fuel nozzle to the filler opening or funnel to help prevent electrostatic sparks.
(7) Fill the fuel tank, but do not overfill. WARNING! Do not overfill. Otherwise fuel can expand and overflow if the temperature increases. [EWM02611]
(8) Tighten the fuel tank cap securely. (9) Wipe up any spilled gasoline immediate-
ly with dry rags. Dispose of rags properly according to local laws or regulations.
EMU40252
Operating engine EWM02601
This product emits exhaust gases which contain carbon monoxide, a colorless, odorless gas which could cause brain damage or death when inhaled. Symp- toms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.
EMU41291
Sending fuel (1) If your boat is equipped with a fuel tank
selector valve, turn the valve to select the appropriate fuel tank.
(2) Squeeze the primer pump, with the ar- row pointing up, until you feel it become firm.
U6FN36E0.book Page 51 Tuesday, November 30, 2021 8:08 AM
Operation
52
EMU27496
Starting engine EWM01601
Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the water near you.
EMU40643
Procedure for starting engine EWM02592
Failure to attached engine shut-off cord (lanyard) could result in a runaway boat if operator is ejected. Attach the engine shut-off cord to a secure place on your clothing, or your arm or leg while oper- ating. Do not attach the engine shut-off cord to clothing that could tear loose. Do not route the engine shut-off cord where it could become entangled, pre- venting it from functioning.
Avoid accidentally pulling the engine shut-off cord during normal operation. Loss of engine power means the loss of most steering control. Also, without en- gine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward.
(1) Move the remote control lever to the neutral position.
TIP: The start-in-gear protection device prevents the engine from starting except when in neu- tral.
(2) Attach the engine shut-off cord to a se- cure place on your clothing, or your arm or leg. Then, attach the clip on the other end of the engine shut-off cord to the en- gine shut-off switch.
1. Arrow
1
ZMU07034
N
ZMU06926
N
ZMU07037
U6FN36E0.book Page 52 Tuesday, November 30, 2021 8:08 AM
Operation
53
(3) Turn the main switch to the (on) po- sition.
(4) Turn the main switch to the (start) position, and hold it for a maxi- mum of 5 seconds.
(5) Immediately after the engine starts, re- lease the main switch to return it to the (on) position. NOTICE: Never turn the main switch to (start) while the engine is running. Do not keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more than 5 seconds, the battery will be quickly discharged, thus making it impossible to start the engine. The starter can also be dam- aged. If the engine will not start after 5 seconds of cranking, return the main switch to (on), wait 10 seconds, then crank the engine again. [ECM00193]
ZMU04628
ZMU07031
ON OFF
ZMU06927
ON OFF
ZMU07032
ON START
ZMU06928
ON START
U6FN36E0.book Page 53 Tuesday, November 30, 2021 8:08 AM
Operation
54
EMU36511
Checks after starting engine
EMU41361
Cooling water Check for a steady flow of water from the cooling water pilot hole. A continuous flow of water from the cooling water pilot hole shows that the water pump is pumping water through the cooling water passages.
TIP: When the engine is started, there may be a slight delay before water flows from the cool- ing water pilot hole. ECM02251
If water is not flowing out of the cooling water pilot hole at all times while the en- gine is running, overheating and serious damage could occur. Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked. Consult your Yamaha dealer if the problem cannot be located and corrected.
EMU27671
Warming up engine
EMU41234
Procedure for warming up engine (1) After starting the engine, warm up the
engine until the engine speed stabilizes at idle speed to provide maximum oper- ating performance and acceleration. NOTICE: Failure to do so will shorten engine life. [ECM04550]
(2) Check that the low oil pressure-alert indi- cator remains off. NOTICE: If the low oil pressure-alert indicator blinks after the engine starts, stop the engine. Otherwise, serious engine damage could occur. Consult your Yamaha dealer. [ECM02381]
EMU36532
Checks after engine warm up
EMU36542
Shifting While the boat is tightly moored, and without applying throttle, confirm that the engine shifts smoothly into forward and reverse, and back to neutral.
EMU40461
Stop switches Perform the following procedure to check that the main switch and engine shut-off switch operate properly. Check that the engine stops when the main
switch is turned to the (off) position. Check that the engine stops when the clip
is pulled from the engine shut-off switch. Check that the engine cannot be started
with the clip removed from the engine shut- off switch.
1. Cooling water pilot hole
1
Idle speed (in neutral): 700800 r/min
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Operation
55
EMU31734
Shifting EWM00181
Before shifting, make sure there are no swimmers or obstacles in the water near you.
ECM01611
Warm up the engine before shifting into gear. Until the engine is warm, the idle speed may be higher than normal. High idle speed can prevent you from shifting back to neutral. If this occurs, stop the en- gine, shift to neutral, then restart the en- gine and allow it to warm up.
To shift out of neutral (1) Pull the neutral interlock trigger up (if
equipped).
(2) Move the remote control lever firmly and crisply forward (for forward gear) or rear- ward (for reverse gear) about 35 (a de- tent can be felt).
To shift from in gear (forward/reverse) to neu- tral (1) Close the throttle so that the engine
slows to idle speed.
1. Neutral interlock trigger
1
ZMU07035
N F R35 35
ZMU06930
N F R
35 35
ZMU07036
RF
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Operation
56
(2) After the engine is at idle speed in gear, move the remote control lever firmly and crisply to the neutral position.
EMU40473
Stopping boat EWM01511
Do not use the reverse function to slow down or stop the boat as it could cause you to lose control, be ejected, or im- pact the steering wheel or other parts of
the boat. This could increase the risk of serious injury. It could also damage the shift mechanism.
Do not shift into reverse while traveling at planing speeds. Loss of control, boat swamping, or damage to the boat could occur.
The boat is not equipped with a separate braking system. Water resistance stops it af- ter the throttle is closed and the engine re- turns to idle speed. The stopping distance varies depending on gross weight, water sur- face conditions, and wind direction. EMU27823
Stopping engine Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stop- ping the engine immediately after operating at high speed is not recommended.
EMU40671
Procedure for stopping engine (1) Turn the main switch to the (off)
position.
ZMU06931
F R
ZMU07034
N
ZMU06926
N
ZMU07033
ON OFF
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Operation
57
(2) Remove the key if the boat will be left un- attended.
TIP: The engine can also be stopped by pulling the engine shut-off cord (lanyard) and remov- ing the clip from the engine shut-off switch, then turning the main switch to the (off) position. EMU27865
Trimming outboard motor EWM00741
Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make steer- ing the boat more difficult. This increases the possibility of an accident. If the boat begins to feel unstable or is hard to steer, slow down and/or readjust the trim angle.
The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. Correct trim angle will help im- prove performance and fuel economy while reducing strain on the engine. Correct trim angle depends upon the combination of boat, engine, and propeller. Correct trim is also affected by variables such as the load in the boat, sea conditions, and running speed.
EMU40422
Adjusting trim angle EWM02472
Make sure that all people are clear of the outboard motor when adjusting the trim angle. Body parts can be crushed be- tween the outboard motor and the clamp bracket when the outboard motor is trimmed or tilted.
Use caution when trying a trim angle for the first time. Increase speed gradually and watch for any signs of instability or control problems. Improper trim angle can cause loss of control.
If the outboard motor is equipped with a power trim and tilt switch located on the bottom cowling, use the switch only when the boat is at a complete stop with the engine off. Do not adjust the trim an- gle with this switch while the boat is moving.
Adjust the outboard motor trim angle using the power trim and tilt switch.
ZMU06932
ON OFF
1. Trim operating angle 1
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Operation
58
To raise the bow (trim-out), push the (up) side of the switch. To lower the bow (trim-in), push the (down) side of the switch. Make test runs with the outboard motor set at different trim angles to find the position that works best for your boat and operating con- ditions.
EMU27913
Adjusting boat trim When the boat is on plane, a bow-up attitude results in less drag, greater stability and effi- ciency. This is generally when the keel line of the boat is up about 3 to 5 degrees. With the bow up, the boat may have a greater tenden- cy to steer to one side or the other. Compen- sate for this as you steer. When the bow of the boat is down, it is easier to accelerate from a standing start onto plane.
Bow Up Too much trim-out puts the bow of the boat too high in the water. Performance and econ- omy are decreased because the hull of the boat is pushing the water and there is more air drag. Excessive trim-out can also cause the propeller to ventilate, which reduces per- formance further, and the boat may por- poise (hop in the water), which could throw the operator and passengers overboard.
Bow Down Too much trim-in causes the boat to plow through the water, decreasing fuel economy and making it hard to increase speed. Oper- ating with excessive trim-in at higher speeds also makes the boat unstable. Resistance at the bow is greatly increased, heightening the danger of bow steering and making opera- tion difficult and dangerous.
1. Power trim and tilt switch
1. Power trim and tilt switch
DN
1
UP
UP DN
1
ZMU07038
ZMU07039
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Operation
59
TIP: Depending on the type of boat, the outboard motor trim angle may have little effect on the trim of the boat when operating. EMU27948
Tilting up and down If the engine will be stopped for some time or if the boat is moored in shallows, the out- board motor should be tilted up to protect the propeller and lower case from damage by collision with obstructions, and also to re- duce salt corrosion. EWM01544
Make sure that all people are clear of the outboard motor when tilting the outboard motor up and down. Body parts can be crushed between the outboard motor and the clamp bracket when the outboard mo- tor is trimmed or tilted.
ECM00993
Before tilting the outboard motor, follow the procedure under Stopping engine in this chapter. Never tilt the outboard motor while the engine is running. Se- vere damage from overheating can re- sult.
To prevent the cooling water passages from becoming frozen when the ambi- ent temperature is 5C (41F) or below, tilt the outboard motor up after it has been stopped 30 seconds or more.
EMU44640
Procedure for tilting up (power trim and tilt models) (1) Place the remote control lever in neutral.
(2) Press the power trim and tilt switch (up) until the outboard motor has tilted up completely.
ZMU07040
ZMU07034
N
ZMU06926
N
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Operation
60
(3) Pull the tilt support lever toward you to support the engine. WARNING! After tilting the outboard motor, be sure to support it with the tilt support knob or tilt support lever. Otherwise the out- board motor could fall back down suddenly if oil in the power trim and tilt unit or in the power tilt unit loses pres- sure. [EWM00263] NOTICE: Do not use the tilt support lever or knob when traile- ring the boat. The outboard motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running posi- tion, use an additional support device to secure it in the tilt position. For more detailed information, see page 63. [ECM01642]
EMU42702
Procedure for tilting down (1) Push the power trim and tilt switch
(up) until the outboard motor is support- ed by the tilt rod and the tilt support lever becomes free.
(2) Release the tilt support lever.
(3) Push the power trim and tilt switch (down) to lower the outboard motor to the desired position.
1. Power trim and tilt switch
1. Power trim and tilt switch
1
UP
1
UP
1. Tilt support lever
1. Tilt support lever
1
1
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Operation
61
EMU28063
Shallow water
EMU40702
Cruising in shallow water The outboard motor can be tilted up partially to allow operation in shallow water. ECM02361
Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when set- ting up for and cruising in shallow water. Otherwise severe damage from overheat- ing can result.
EMU40712
Procedure for shallow water cruising (1) Move the remote control lever to the
neutral position.
(2) Push the (up) side of the power trim and tilt switch to tilt the outboard motor up slightly to the desired position. WARNING! Using the power trim and tilt switch on the bottom cowling while the boat is moving or engine is on could increase the risk of falling over-
1. Power trim and tilt switch
1. Power trim and tilt switch
1
DN
1
DN
1. Cooling water inlet
1
ZMU07034
N
ZMU06926
N
U6FN36E0.book Page 61 Tuesday, November 30, 2021 8:08 AM
Operation
62
board and could distract the operator, increasing the risk of collision with an- other boat or an obstacle. [EWM01851]
(3) To return the outboard motor to the nor- mal running position, push the (down) side of the power trim and tilt switch to tilt the outboard motor down slowly.
EMU41371
Operating in other conditions Operating in salt water After operating in saltwater, brackish water, or water high in other minerals, flush the cool- ing system with fresh water to minimize cor- rosion and clogging of the cooling water passages with deposits. Also, rinse the exte- rior of the outboard motor with fresh water.
Operating in water containing mud, sand, silt, debris, or vegetation Mud, sand, silt, debris, and vegetation in the water may restrict water flow into the cooling water inlet covers or clog internal water pas- sages. Check and clean the cooling water in- let covers frequently when operating in these conditions. Flush the engine with clean, fresh water after use in these environments. Con- sult your dealer if normal water flow can not be restored by cleaning the cooling water in- let covers or flushing with fresh water.
1. Power trim and tilt switch
1. Power trim and tilt switch
1
UP
1
DN
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Maintenance
63
EMU41533
Transporting and storing out- board motor
EWM02641
USE CARE when transporting fuel tank, whether in a boat or car.
DO NOT fill fuel container to maximum capacity. Gasoline will expand consider- ably as it warms up and can build up pressure in the fuel container. This can cause fuel leakage and a potential fire hazard.
Leaking fuel is a fire hazard. Tighten se- curely the fuel valve when transporting and storing the outboard motor.
Never get under the outboard motor while it is tilted. Severe injury could oc- cur if the outboard motor accidentally falls.
Do not use the tilt support lever or knob when trailering the boat. The outboard motor could shake loose from the tilt support and fall. If the outboard motor cannot be trailered in the normal run- ning position, use an additional support device to secure it in the tilt position.
Leaking fuel is a fire hazard. When trailering the boat, close the fuel valve to prevent fuel from leaking. The outboard motor should be transported and stored in the normal running position. If there is insufficient road clearance in this po- sition, then trailer the outboard motor in the tilt position using a motor support device such as a transom saver bar. Consult your Yamaha dealer for further details. When the outboard motor is tilted for a pro- longed time when mooring or trailering the boat, close the fuel valve.
EMU44940
Storing outboard motor When storing your Yamaha outboard motor for prolonged periods of time (2 months or longer), several important procedures must be performed to prevent excessive damage. It is advisable to have your outboard motor serviced by an authorized Yamaha dealer pri- or to storage. However, you, the owner, with a minimum of tools, can perform the follow- ing procedures. ECM04460
To prevent problems which can be caused by oil entering the cylinder from the sump, keep the outboard motor in the attitude shown when transporting and storing it. If storing or transporting the outboard motor on its side (not up- right, port side only), put it on a cushion after draining the engine oil.
Do not place the outboard motor on its side before the cooling water has drained from it completely, otherwise water may enter the cylinder through the exhaust port and cause engine trouble.
Store the outboard motor in a dry, well- ventilated place, not in direct sunlight.
ZMU08126
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Maintenance
64
EMU41382
Conditioning and stabilizing gasoline When preparing to store a boat for extended periods (2 months or longer) it is best to com- pletely remove all gasoline from the boats fuel tank(s). If it is not possible to remove the gasoline, add one ounce of Yamalube Fuel Stabilizer & Conditioner Plus to each gallon of gasoline in a full tank of gasoline to provide fuel stability and corrosion protection.
TIP: Do not fill the fuel tank(s) to the point of over- flowing. Approximately 7/8 full will allow enough space in the fuel tank to prevent gas- oline purging from the fuel tank vent due to expansion with temperature changes. Do not cap the fuel tank vent. Excessive pressure could damage the boat and motors fuel systems. A partially filled fuel tank, less than 7/8 full but not completely empty, is not recommended. Air space above the gasoline allows air movement which can bring in water through condensation as the air temperature chang- es. Condensation inside the fuel tank can cause corrosion problems and phase separation of gasoline containing ethanol. Consult your Yamaha dealer concerning pre- ventative measures that may work best for the gasoline and environmental conditions in your area.
EMU28306
Procedure EMU44313
Flushing with the flushing attachment Cooling system flushing is essential to pre- vent the cooling system from clogging up with salt, sand, or dirt. In addition, fogging/lu- bricating of the engine is mandatory to pre-
vent excessive engine damage due to rust. Perform the flushing and fogging at the same time. (1) Wash the exterior of the outboard motor
using fresh water. NOTICE: Do not spray water into the air intake. [ECM01841]
For further information, see page 66. (2) Fill the fuel tank with fresh fuel and add
one ounce of Yamalube Fuel Stabilizer & Conditioner Plus to each gallon of fu- el.
TIP: The use of Yamalube Fuel Stabilizer & Con- ditioner Plus eliminates the need to drain the fuel system. Consult your Yamaha dealer or other qualified mechanic if the fuel system is to be drained instead. (3) Remove the top cowling and propeller. (4) Install the flushing attachment over the
cooling water inlet, and then turn on the water supply. NOTICE: Do not run the engine without supplying it with cool- ing water. Either the engine water pump will be damaged or the engine will be damaged from overheating. Before starting the engine, be sure to supply water to the cooling water pas- sages. Avoid running the outboard motor at high speed while on the flushing attachment, otherwise over- heating could occur. [ECM02001]
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Maintenance
65
TIP: A flushing attachment is available from your Yamaha dealer. (5) Run the engine at a fast idle for a few
minutes in neutral while supplying fresh water. WARNING! Do not touch or re- move electrical parts when starting or during operation. Keep hands, hair, and clothes away from the flywheel and other rotating parts while the en- gine is running. [EWM00092]
TIP: When using the flushing attachment, main-
tain adequate water pressure so that there is a steady flow of water from the cooling water pilot hole.
If the overheat alert device is activated, turn the engine off, and consult your Yamaha dealer.
(6) Just prior to turning off the engine, quick- ly spray Yamaha Stor-Rite Engine Fog- ging Oil into the intake silencer. When properly done, the engine will smoke ex- cessively and almost stall.
(7) Turn off the water supply, and then re- move the flushing attachment and wipe off any excess water.
(8) Install the top cowling and propeller. (9) Drain the cooling water completely out of
the outboard motor. Clean the exterior of the outboard motor thoroughly.
EMU41072
Lubrication (1) Change the gear oil. For instructions, see
page 80. Check the gear oil for the pres- ence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use.
(2) Lubricate all grease fittings. For further details, see page 72.
TIP: For long-term storage, fogging the engine with fogging oil is recommended. Contact your Yamaha dealer for information about fogging oil and procedures for your outboard motor.
EMU30269
Cleaning and anticorrosion measures (1) Wash down the exterior of the outboard
motor with fresh water and dry off com- pletely. NOTICE: Do not spray water into the air intake. [ECM01841] For further in- formation, see page 66.
1. Flushing attachment
1
ZMU08100
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Maintenance
66
(2) Spray the outboard motor exterior with Yamaha Silicone Protectant. NOTICE: Do not spray when the engine is run- ning. Also, do not spray near the si- lencer or into the engine. Otherwise the engine could be damaged. [ECM01403]
(3) Wax the cowling with a non-abrasive wax such as Yamalube Professional Polish.
EMU40964
Flushing cooling water passage Perform this procedure right after operation for the most thorough flushing. ECM01531
Do not perform this procedure while the engine is running. The water pump may be damaged and severe damage from over- heating can result.
(1) Disconnect the garden hose connector from the fitting on the bottom cowling.
(2) Connect the garden hose to the garden hose connector.
(3) With the engine off, turn on the water supply and let the water flush through the cooling water passages for about 15 minutes.
(4) Turn off the water supply, and then dis- connect the garden hose from the gar- den hose connector.
(5) Connect the garden hose connector to the fitting on the bottom cowling and tighten it securely. NOTICE: If the gar- den hose connector is not properly connected, cooling water can leak out and the engine can overheat during operation. [ECM01802]
TIP: When flushing the cooling water passages with the boat in the water, tilting the outboard motor up until it is completely out of the water will achieve better results.
EMU44342
Cleaning the outboard motor When cleaning the outboard motor, the top cowling must be installed. (1) Wash the exterior of the outboard motor
using fresh water. NOTICE: Do not spray water into the air intake. [ECM01841]
1. Fitting 2. Garden hose connector
2 1
1. Garden hose 2. Garden hose adapter (commercially avail-
able) 3. Garden hose connector
23 1
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Maintenance
67
(2) Drain the cooling water completely out of the outboard motor. Clean the body thoroughly.
EMU28463
Checking painted surface of outboard motor Check the outboard motor for scratches, nicks, or flaking paint. Areas with damaged paint are more likely to corrode. If necessary, clean and paint the areas. Touch-up paint is available from your Yamaha dealer. EMU44952
Periodic maintenance EWM01872
These procedures require mechanical skills, tools, and supplies. If you do not have the proper skills, tools, or supplies to perform a maintenance procedure, have a Yamaha dealer or other qualified mechan- ic do the work. The procedures involve disassembling the motor and exposing dangerous parts. To reduce the risk of injury from moving, hot, or electrical parts: Turn off the engine and keep the key(s)
and engine shut-off cord (lanyard) with you when you perform maintenance un- less otherwise specified.
The power trim and tilt switches operate even when the ignition key is off. Keep people away from the switches whenev- er working around the motor. When the motor is tilted, keep away from the area under it or between it and the clamp bracket. Be sure no one is in this area before operating the power trim and tilt mechanism.
Allow the engine to cool before handling hot parts or fluids.
Always completely reassemble the mo- tor before operation.
Maintenance, replacement, or repair of the emission control devices and systems may be performed by any marine engine repair establishment or individual. All war- ranty repairs, however, including those to the emission control system, must be per- formed by an authorized Yamaha marine dealership. For North America: A service manual is available for purchase through your Yamaha dealer for owners who have the mechanical skills, tools, and other equipment necessary to perform mainte- nance not covered by this owners manual.
EMU28512
Replacement parts If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and pas- sengers. Yamaha genuine parts and acces- sories are available from your Yamaha dealer.
1. Air intake
1
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Maintenance
68
EMU35522
Maintenance interval guidelines The service intervals provided in the Mainte- nance Chart were developed based upon typical use that includes operating at varied speeds, with sufficient time for engine warm up and cool-down, a medium to light load, and an average cruising speed near the 3000 to 4000 rpm range. As with any engine, how- ever, if your normal operating conditions are different, you should consider service more often than shown, especially how often you change your engine oil and gear oil. Exam- ples might include extended wide-open- throttle use or long periods of trolling or idling, carrying heavy loads, or frequent start- ing and stopping or shifting. More frequent maintenance will often pay off many times over in increased engine life and greater own- er satisfaction. Consult your Yamaha dealer for additional maintenance recommenda- tions.
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Maintenance
69
EMU46073
Maintenance chart 1 TIP: Refer to the sections in this chapter for explanations of each owner-specific action. The maintenance cycle on these charts assume usage of 100 hours per year and regular
flushing of the cooling water passages. Maintenance frequency should be adjusted when operating the engine under adverse conditions such as extended trolling.
Disassembly or repairs may be necessary depending on the outcome of maintenance checks.
Expendable or consumable parts and lubricants will lose their effectiveness over time and through normal usage regardless of the warranty period.
When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine should be flushed with clean water after each use.
The symbol indicates the check-ups which you may carry out yourself. The symbol indicates work to be carried out by your Yamaha dealer.
Item Actions
Initial Every
Page20 hours (3
months)
100 hours (1 year)
300 hours (3 years)
500 hours (5 years)
Anode(s) (external) Inspection or re- placement as nec- essary
82
Anode(s) (internal) *1
Inspection or re- placement as nec- essary
Anode(s) (internal) *2 Replacement
Battery (electro- lyte level, terminal) Inspection 82
Battery (electro- lyte level, terminal)
Fill, charging or re- placing as neces- sary
Cooling water leakage
Inspection or re- placement as nec- essary
Cowling lock lever Inspection 47, 49
Engine starting condition/noise Inspection 51
Engine idle speed/noise Inspection 74
Engine oil Replacement 74
Engine oil filter (cartridge) Replacement 77
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Maintenance
70
Fuel filter (can be disassembled)
Inspection or re- placement as nec- essary
48
Fuel line (High pressure) Inspection
Fuel line (High pressure)
Inspection or re- placement as nec- essary
Fuel line (Low pressure) Inspection
Fuel line (Low pressure)
Inspection or re- placement as nec- essary
Fuel pump Inspection or re- placement as nec- essary
Fuel/engine oil leakage Inspection
Gear oil Replacement 80
Greasing points Greasing 72
Clamp bracket bolt (through tube)
Inspection and greasing
Impeller/water pump housing
Inspection or re- placement as nec- essary
Impeller/water pump housing Replacement
Power trim and tilt unit Inspection 50
Propeller/propeller nut/cotter pin
Inspection or re- placement as nec- essary
78
PCV (Pressure Control Valve)
Inspection or re- placement as nec- essary
Shift link/shift ca- ble
Inspection, adjust- ment or replace- ment as necessary
Spark plug(s) Inspection or re- placement as nec- essary
73
Item Actions
Initial Every
Page20 hours (3
months)
100 hours (1 year)
300 hours (3 years)
500 hours (5 years)
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Maintenance
71
EMU46030
*1 cylinder head *2 cylinder block, cooling water passage, exhaust joint, exhaust manifold, exhaust guide
EMU46082
Maintenance chart 2
Ignition coils/igni- tion coil leads
Inspection or re- placement as nec- essary
Water from the cooling water pilot hole
Inspection 54
Throttle link/throt- tle cable
Inspection, adjust- ment or replace- ment as necessary
Thermostat Inspection or re- placement as nec- essary
Timing belt Inspection or re- placement as nec- essary
Valve clearance Inspection and ad- justment
Cooling water inlet Inspection 24
Main switch/stop switch
Inspection or re- placement as nec- essary
Wire harness con- nections/wire cou- pler connections
Inspection or re- placement as nec- essary
(Yamaha) Me- ter/gauge Inspection
Item Actions Every
Page 1000 hours
Exhaust guide/ex- haust manifold
Inspection or re- placement as nec- essary
Timing belt Replacement
Item Actions
Initial Every
Page20 hours (3
months)
100 hours (1 year)
300 hours (3 years)
500 hours (5 years)
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Maintenance
72
EMU41303
Greasing Yamalube Marine Grease
ZMU08103
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Maintenance
73
EMU46311
Inspecting spark plug The spark plug is an important engine com- ponent. The condition of the spark plug can indicate something about the condition of the engine. For example, if the center electrode porcelain is very white, this could indicate an intake air leak or carburetion problem in that cylinder. Do not attempt to diagnose any problems yourself. Instead, take the out- board motor to a Yamaha dealer. You should periodically remove and check the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. To remove the spark plug (1) Remove the cover.
(2) Remove the bolt that is securing the igni- tion coil, and then remove the ignition coil. NOTICE: Do not use any tools to
remove or install the ignition coil. Oth- erwise, the ignition coil coupler could be damaged. [ECM02331]
(3) Remove the spark plug. WARNING! When removing or installing a spark plug, be careful not to damage the in- sulator. A damaged insulator could al- low external sparks, which could lead to explosion or fire. [EWM00562]
To check the spark plug (1) Check the condition of the spark plug. If
electrode erosion becomes excessive or carbon and other deposits are exces- sive, replace the spark plug with the specified plug.
1. Cover
1
1. Bolt 2. Ignition coil
Standard spark plug: LKR6E
2
1
1
1
1
ZMU08215
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Maintenance
74
(2) Measure the spark plug gap using a thickness gauge. If the spark plug gap is out of specification, replace the spark plug with the specified plug.
To install the spark plug (1) Wipe off any dirt from the threads, insu-
lator, and gasket surface of the spark plug.
(2) Install the spark plug, and then tighten it to the specified torque.
TIP: If a torque-wrench is not available when you are reinstalling a spark plug, a good estimate of the correct torque is 1/12 turn past finger- tight. When you are installing a new spark plug, a good estimate of the correct torque is 1/2 turn past finger-tight. (3) Install the ignition coil, and then tighten
the bolt to the specified torque.
(4) Install the cover.
EMU29045
Inspecting idle speed EWM00452
Do not touch or remove electrical parts when starting or during operation.
Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine is running.
ECM00491
This procedure must be performed while the outboard motor is in the water. A flush- ing attachment or test tank can be used.
If the boat is not equipped with a tachometer for the outboard motor, use a diagnostic ta- chometer for this procedure. Results may vary depending on whether testing is con- ducted with the flushing attachment, in a test tank, or with the outboard motor in the water. (1) Start the engine and allow it to warm up
fully in neutral until it is running smoothly. (2) Once the engine has warmed up, verify
whether the idle speed is set to specifi- cation. For idle speed specifications, see page 15. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer or other qualified mechanic.
EMU38808
Changing engine oil EWM00761
Avoid draining the engine oil immediate- ly after stopping the engine. The oil is hot and should be handled with care to avoid burns.
1. Spark plug gap 2. Spark plug part number 3. Spark plug I.D. mark (NGK)
Spark plug gap: 0.80.9 mm (0.0310.035 in)
Spark plug tightening torque: 25 Nm (2.5 kgfm, 18 lbft)
Bolt tightening torque: 8 Nm (0.8 kgfm, 5.9 lbft)
12
3
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Maintenance
75
Be sure the outboard motor is securely fastened to the transom or a stable stand.
ECM01711
Change the engine oil after the first 20 hours of operation or 3 months, and every 100 hours or at 1-year intervals thereafter. Otherwise the engine will wear quickly.
To prevent spilling oil where it could cause damage to nature, it is strongly recommend- ed that you use an oil changer to change the engine oil. If an oil changer is not available, drain the engine oil by removing the drain screw. If you are not familiar with the proce- dure for changing the engine oil, consult your Yamaha dealer. (1) Put the outboard motor in an upright po-
sition (not tilted). NOTICE: If the out- board motor is not level, the oil level indicated on the oil dipstick may not be accurate. [ECM01862]
(2) Start the engine. Warm it up and keep the idle speed for 5-10 minutes.
(3) Stop the engine and leave it for 5-10 min- utes.
(4) Remove the top cowling. (5) Remove the oil filler cap. Pull out the dip-
stick and use the oil changer to extract the oil completely.
TIP: When using an oil changer, skip steps 6 and 7. (6) Prepare a suitable container that holds a
larger amount than the engine oil capac- ity. Remove the drain screw and gasket while holding the container under the drain hole. Let the oil drain completely. Wipe up any spilled oil immediately.
ZMU08105
1. Oil filler cap
1. Oil changer
1
1
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Maintenance
76
TIP: If the oil does not drain easily, change the tilt angle or turn the outboard motor to port and starboard to drain the oil. (7) Put a new gasket on the oil drain screw.
Apply a light coat of oil to the gasket and install the drain screw.
TIP: If a torque wrench is not available when you are installing the drain screw, finger tighten the screw just until the gasket comes into contact with the surface of the drain hole. Then tighten 1/4 to 1/2 turn more. Tighten the drain screw to the correct torque with a torque wrench as soon as possible. (8) Add the correct amount of oil through the
filler hole. Put back the filler cap and the dipstick. NOTICE: Overfilling the oil could cause leakage or damage. If the oil level is above the upper level mark, drain until the level meets the speci- fied capacity. [ECM01851]
(9) Leave the outboard motor for 5-10 min- utes.
(10) Remove the oil dipstick and wipe it clean.
(11) Insert the dipstick and remove it again. Be sure to completely insert the dipstick into the dipstick guide, otherwise the oil level measurement will be incorrect.
(12) Recheck the oil level using the dipstick to be sure the level falls between the upper and lower marks. Consult your Yamaha dealer if the oil level is out of specified level.
(13) Start the engine and make sure that the low oil pressure-alert indicator remains off. Also, make sure that there are no oil leaks. NOTICE: If the low oil pressure- alert indicator comes on or if there are oil leaks, stop the engine and find the cause. Continued operation with a
1. Drain screw 2. Gasket
Drain screw tightening torque: 27 Nm (2.7 kgfm, 20 lbft)
2
1
Recommended engine oil: YAMALUBE 4M FC-W or 4-stroke outboard motor oil Engine oil quantity (without oil filter replacement):
3.0 L (3.17 US qt, 2.64 Imp.qt) Engine oil quantity (with oil filter re- placement):
3.2 L (3.38 US qt, 2.82 Imp.qt)
1. Oil dipstick 2. Upper mark 3. Lower mark
3 2 1
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Maintenance
77
problem could cause severe engine damage. Consult your Yamaha dealer if the problem cannot be located and corrected. [ECM01623]
(14) Install the top cowling. (15) Dispose of used oil according to local
regulations.
TIP: For more information on the disposal of
used oil, consult your Yamaha dealer. Change the oil more often when operating
the engine under adverse conditions such as extended trolling.
EMU48110
Replacing the engine oil filter EWM00761
Avoid draining the engine oil immediate- ly after stopping the engine. The oil is hot and should be handled with care to avoid burns.
Be sure the outboard motor is securely fastened to the transom or a stable stand.
Yamaha recommends you to have a Yamaha dealer replace the engine oil filter. If you perform replacement yourself, follow the procedure below. If you have any ques- tions, please consult a Yamaha dealer. (1) Drain the engine oil. For further informa-
tion, see page 74. (2) Place a cloth under the engine oil filter. (3) Turn the engine oil filter counterclock-
wise and remove it.
TIP: Wipe up any spilled engine oil. Dispose of the removed engine oil filter in
accordance with local regulations. (4) Apply engine oil to the O-ring of the en-
gine oil filter.
(5) Turn the engine oil filter clockwise and tighten it to the specified torque.
1. O-ring
1
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Maintenance
78
(6) Fill up the engine with engine oil. For fur- ther information, see page 74.
EMU48060
Why Yamalube YAMALUBE oil is a Genuine YAMAHA Part born of the engineers passion and belief that engine oil is an important liquid engine com- ponent. We form teams of specialists in the fields of mechanical engineering, chemistry, electronics and track testing, and have them develop the engine together with the oil it will use. Yamalube oils take full advantage of the base oils qualities and blend in the ideal bal- ance of additives to make sure the final oil clears our performance standards. Thus, Yamalube mineral, semisynthetic and syn- thetic oils have their own distinct characters and value. Yamahas experience gained over many years of research and development into oil since the 1960s helps make Yamalube the best choice for your Yamaha engine.
EMU29116
Inspecting wiring and connectors Inspect that each connector is engaged se-
curely. Inspect that each ground lead is properly
secured.
EMU40892
Inspecting propeller EWM02562
You could be seriously injured if the en- gine accidentally starts when you are near the propeller. Before inspecting, remov- ing, or installing the propeller, move the remote control lever to the neutral posi- tion, turn the main switch to the (off) position, remove the key, and remove the
Engine oil filter: 18 Nm (1.8 kgfm, 13 lbft)
ZMU08109
ZMU08110
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Maintenance
79
clip from the engine shut-off switch. Turn off the battery cut-off switch if your boat has one.
Do not use your hand to hold the propeller when loosening or tightening the propeller nut. Place a block of wood between the anti- cavitation plate and the propeller to prevent the propeller from turning.
Checkpoints Check each of the propeller blades for ero-
sion from cavitation or ventilation, and oth- er damage.
Check the propeller shaft for damage. Check the splines for wear and damage. Check for fish line tangled around the pro-
peller shaft.
EMU42632
Removing propeller (1) Straighten the cotter pin and pull it out
using a pair of pliers.
(2) Remove the propeller nut, washer, and spacer. WARNING! Do not use your hand to hold the propeller when loos- ening the propeller nut. [EWM01891]
(3) Remove the propeller, spacer (if equipped), and thrust washer.
EMU44912
Installing propeller ECM00502
Make sure to use a new cotter pin and bend the ends over securely. Otherwise, the propeller could come off during oper- ation and be lost.
(1) Apply Yamalube Marine Grease or a cor- rosion resistant grease to the propeller shaft.
(2) Install the thrust washer and propeller on the propeller shaft. NOTICE: Make sure to install the thrust washer before in- stalling the propeller. Otherwise, the lower case and propeller boss could be damaged. [ECM01882]
ZMU07854
ZMU08131
1. Cotter pin 2. Propeller nut 3. Washer 4. Spacer 5. Propeller 6. Thrust washer
3 2
1
5 6
4
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Maintenance
80
(3) Install the spacer, washer, and propeller nut. Tighten the propeller nut to the specified torque.
(4) Align the propeller nut slot with the pro- peller shaft hole. Insert a new cotter pin in the hole and bend the cotter pin ends. NOTICE: Do not reuse the cotter pin. Otherwise, the propeller can come off during operation. [ECM01892]
TIP: If the propeller nut slot does not align with the propeller shaft hole after tightening the pro- peller nut to the specified torque, tighten the nut further to align the slot with the hole.
EMU47100
Changing gear oil EWM00801
Be sure the outboard motor is securely fastened to the transom or a stable stand. You could be severely injured if the outboard motor falls on you.
Never get under the lower unit while it is tilted, even when the tilt support lever or knob is locked. Severe injury could oc- cur if the outboard motor accidentally falls.
(1) Tilt the outboard motor so that the gear oil drain screw is at the lowest point pos- sible.
(2) Place a suitable container under the gear case.
(3) Remove the gear oil drain screw and gasket. The screw is magnetic so a small quantity of metal particles on the end of the screw is normal. Simply remove them. NOTICE: If there is an excessive quantity of metal particles on the magnetic gear oil drain screw, this can indicate lower unit problem. Con- sult your Yamaha dealer. [ECM01901]
1. Cotter pin 2. Propeller nut 3. Washer 4. Spacer 5. Propeller 6. Thrust washer
Propeller nut tightening torque: 54 Nm (5.4 kgfm, 40 lbft)
1. Cotter pin
3 2
1
5 6
4
1
ZMU06956
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Maintenance
81
TIP: Always use new gaskets. Do not reuse the re- moved gaskets. (4) Remove the oil level plug and gasket to
allow the oil to drain completely. NOTICE: Check the used gear oil after it has been drained. If the gear oil is milky or contains water or a large amount of metal particles, the gear case may be damaged. Have a Yamaha dealer check and repair the outboard motor. [ECM00714]
TIP: For disposal of used oil, consult your Yamaha dealer.
(5) Put the outboard motor in a vertical posi- tion. Using a flexible or pressurized filling device, inject the gear oil into the gear oil drain screw hole.
(6) Put a new gasket on the oil level plug. When the oil begins to flow out of the oil level plug hole, insert and tighten the oil level plug to the specified torque.
TIP: Apply a light coat of gear oil to the oil level plug thread and gasket before installation.
(7) Put a new gasket on the gear oil drain screw. Insert and tighten the gear oil drain screw to the specified torque.
TIP: Apply a light coat of gear oil to the gear oil drain screw thread and gasket before instal- lation.
1. Gear oil drain screw 2. Gasket
1. Gasket 2. Oil level plug
1 2
1
2
Recommended gear oil: Yamalube Marine Gearcase Lube HD or Hypoid gear oil
Recommended gear oil grade: SAE 90 API GL-4 / SAE 80W API GL- 5 / SAE 90 API GL-5
Gear oil quantity: 0.760 L (0.803 US qt, 0.669 Imp.qt)
Tightening torque: 7 Nm (0.7 kgfm, 5.2 lbft)
ZMU08122
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Maintenance
82
EMU29318
Inspecting and replacing anode(s) Yamaha outboard motors are protected from corrosion by sacrificial anodes. Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a Yamaha dealer for replacement of external anodes. ECM00721
Do not paint anodes, as this would render them ineffective.
TIP: Inspect ground leads attached to external an- odes on equipped models. Consult a Yamaha dealer for inspection and replace- ment of internal anodes attached to the pow- er unit.
EMU29324
Checking battery (for electric start models) EWM01903
Battery electrolyte is poisonous and caus- tic, and batteries generate explosive hy- drogen gas. When working near the battery: Wear protective eye gear and rubber
gloves. Do not smoke or bring any other source
of ignition near the battery.
The procedure for checking the battery varies for different batteries. This procedure con- tains typical checks that apply to many bat- teries, but you should always refer to the battery manufacturers instructions. ECM01921
A poorly maintained battery will quickly deteriorate.
(1) Check the electrolyte level.
Tightening torque: 7 Nm (0.7 kgfm, 5.2 lbft)
1. Anode
1 1
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Maintenance
83
(2) Check the batterys charge. If your boat is equipped with the digital speedome- ter, the voltmeter and low battery alert functions will help you monitor the bat- terys charge. If the battery needs charg- ing, consult your Yamaha dealer.
(3) Check the battery connections. They should be clean, secure, and covered by an insulating cover. WARNING! Bad connections can produce shorting or arcing and cause an explosion. [EWM01913]
EMU29335
Connecting the battery EWM00573
Mount the battery holder securely in a dry, well-ventilated, vibration-free location in the boat. Install a fully charged battery in the holder.
ECM01125
Do not reverse the battery cables. Other- wise, the electrical parts could be dam- aged.
(1) Make sure the main switch (on applica- ble models) is (off) before working on the battery.
(2) Connect the red battery cable to the POSITIVE (+) terminal first. Then connect the black battery cable to the NEGATIVE (-) terminal.
(3) The electrical contacts of the battery and cables must be clean and properly con- nected, or the battery will not start the engine.
EMU29372
Disconnecting the battery (1) Turn off the battery cut-off switch (if
equipped) and main switch. NOTICE: If they are left on, the electrical system can be damaged. [ECM01931]
(2) Disconnect the negative cable(s) from the negative (-) terminal. NOTICE: Al- ways disconnect all negative (-) cables first to avoid a short circuit and dam- age to the electrical system. [ECM01941]
(3) Disconnect the positive cable(s) and re- move the battery from the boat.
(4) Clean, maintain, and store the battery according to the manufacturers instruc- tions.
1. Red cable 2. Black cable 3. Battery
ZMU01811
1
23
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Trouble Recovery
84
EMU40973
Troubleshooting This section describes the likely causes and remedies for problems, such as those in the fuel, compression, and ignition systems, poor starting, and loss of power. Please note that all of the items in this section may not apply to your model. If your outboard motor requires repair, bring it to a Yamaha dealer. If the engine trouble-alert indicator is blinking, consult your Yamaha dealer.
Starter will not operate. Q. Is remote control lever in gear? A. Shift to neutral.
Q. Is battery capacity low or weak? A. Check battery condition. Use battery of recommended capacity.
Q. Are battery connections corroded or loose? A. Tighten battery cables and clean battery terminals.
Q. Is fuse for starter relay or electric circuit blown? A. Check for cause of electric overload and repair. Replace fuse with one of correct am- perage.
Q. Are starter components malfunctioning? A. Have serviced by a Yamaha dealer.
Engine will not start (starter operates). Q. Is clip on engine shut-off cord (lanyard) in- stalled? A. Install clip to engine shut-off switch.
Q. Is fuel tank empty?
A. Fill tank with clean, fresh fuel.
Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged? A. Clean or replace fuel filter.
Q. Is fuel pump malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Are spark plugs fouled or of incorrect type? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Are ignition parts malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is ignition wiring damaged or poorly con- nected? A. Inspect wires for breaks and wear. Have connections tightened and broken or worn wires replaced by a Yamaha dealer.
Q. Are engine inner parts damaged? A. Have serviced by a Yamaha dealer.
Engine idles irregularly or stalls. Q. Are spark plugs fouled or of incorrect type? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Is fuel system clogged? A. Inspect for pinched or kinked fuel line or other obstructions in fuel system.
Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel.
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85
Q. Is fuel filter clogged? A. Clean or replace fuel filter.
Q. Are ignition parts malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Has alert system activated? A. Find and correct cause of alert.
Q. Is spark plug gap incorrect? A. Replace spark plug.
Q. Is ignition wiring damaged or poorly con- nected? A. Inspect wires for breaks and wear. Have connections tightened and broken or worn wires replaced by a Yamaha dealer.
Q. Is specified engine oil not being used? A. Inspect engine oil and replace with speci- fied type.
Q. Is thermostat clogged or malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel pump malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel tank air vent restricted or clogged? A. Remove obstruction.
Q. Is fuel joint connection incorrect? A. Connect correctly.
Q. Is throttle cable adjustment incorrect? A. Have serviced by a Yamaha dealer.
Q. Is battery cable disconnected? A. Connect securely.
Alert buzzer sounds or indicator lights.
Q. Is cooling system clogged? A. Inspect cooling water inlet for obstruc- tions.
Q. Is low oil pressure-alert indicator on or blinking? A. Have serviced by a Yamaha dealer.
Q. Is heat range of spark plugs incorrect? A. Inspect spark plugs and replace with rec- ommended type.
Q. Is specified engine oil not being used? A. Inspect engine oil and replace with speci- fied type.
Q. Is engine oil contaminated or deteriorat- ed? A. Replace engine oil with specified type.
Q. Is oil filter clogged? A. Have serviced by a Yamaha dealer.
Q. Is oil pump malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is thermostat or water pump malfunction- ing? A. Have serviced by a Yamaha dealer.
Q. Is there excess water in fuel filter? A. Drain fuel filter.
Engine power loss. Q. Is propeller damaged? A. Have propeller repaired or replaced.
Q. Is propeller pitch or diameter incorrect?
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86
A. Install correct propeller to operate out- board motor at its recommended speed (r/min) range.
Q. Is outboard motor mounted at incorrect height on transom? A. Have outboard motor adjusted to proper transom height.
Q. Has alert system activated? A. Find and correct cause of alert.
Q. Is boat bottom fouled with marine growth? A. Clean boat bottom.
Q. Are spark plugs fouled or of incorrect type? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Are weeds or other foreign material tan- gled on gear housing? A. Remove foreign material and clean lower unit.
Q. Is fuel system clogged? A. Inspect for pinched or kinked fuel line or other obstructions in fuel system.
Q. Is fuel filter clogged? A. Clean or replace fuel filter.
Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel.
Q. Is spark plug gap incorrect? A. Replace spark plug.
Q. Is ignition wiring damaged or poorly con- nected?
A. Inspect wires for breaks and wear. Have connections tightened and broken or worn wires replaced by a Yamaha dealer.
Q. Are electrical parts malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is specified fuel not being used? A. Replace fuel with specified type.
Q. Is specified engine oil not being used? A. Replace engine oil with specified type.
Q. Is thermostat clogged or malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel tank air vent restricted or clogged? A. Remove obstruction.
Q. Is fuel pump malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel joint connection incorrect? A. Connect correctly.
Q. Is heat range of spark plugs incorrect? A. Inspect spark plugs and replace with rec- ommended type.
Q. Is engine not responding properly to re- mote control lever position? A. Have serviced by a Yamaha dealer.
Engine vibrates excessively. Q. Is propeller damaged? A. Have propeller repaired or replaced.
Q. Is propeller shaft damaged? A. Have serviced by a Yamaha dealer.
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87
Q. Are weeds or other foreign material tan- gled on propeller? A. Remove and clean propeller.
Q. Are outboard motor mounting bolts loose? A. Tighten bolts or have serviced by a Yamaha dealer.
Q. Is steering pivot loose or damaged? A. Have serviced by a Yamaha dealer. EMU29435
Temporary action in emergen- cy
EMU29442
Impact damage EWM00871
The outboard motor can be seriously damaged by a collision while operating or trailering. Damage could make the out- board motor unsafe to operate.
If the outboard motor hits an object in the wa- ter, follow the procedure below.
(1) Stop the engine immediately. (2) Check the control system and all compo-
nents for damage. Also, check the boat for damage.
(3) Whether damage is found or not, return to the nearest harbor slowly and careful- ly.
(4) Have a Yamaha dealer check the out- board motor before operating it again.
EMU46603
Replacing fuse EWM00632
Substituting an incorrect fuse or a piece of wire could allow excessive current flow. This could cause electric system damage and a fire hazard.
If a fuse has blown, replace the fuse accord- ing to the following procedure. (1) Turn the main switch to the (off)
position. (2) Remove the fuse box cover. (3) Remove the fuse with a fuse puller, and
then replace it with a spare one of the proper amperage.
1. Fuse box cover 2. Fuse puller 3. Main switch / PTT switch fuse (20 A) 4. Electric throttle valve fuse (10 A) 5. Fuel pump fuse (15 A) 6. Starter relay fuse (30 A) 7. Ignition coil / Fuel injector / Variable cam-
shaft timing / ECM (Electronic Control Mod- ule) fuse (30 A)
8. Engine main fuse (50 A) 9. Spare fuse (10 A, 15 A, 20 A, 30 A) 10.Spare engine main fuse (50 A)
2 9
176543
8
10
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88
Consult your Yamaha dealer if the new fuse immediately blows again.
EMU29529
Power trim and tilt will not operate EWM02331
Never get under the engine while it is tilt- ed. Severe injury could occur if the out- board motor accidentally falls.
If the outboard motor cannot be tilted up/down using the power trim and tilt unit, e.g. because of a discharged battery or a fail- ure with the unit itself, the outboard motor can be tilted manually. (1) Stop the engine. (2) Loosen the manual valve screw by turn-
ing it counterclockwise until it stops.
(3) Adjust the outboard motor to a navigable angle, tighten the manual valve screw clockwise, and secure the outboard mo- tor.
EMU44991
Water separator-alert is activated af- ter leaving port EWM01501
Gasoline is highly flammable, and its va- pors are flammable and explosive. Do not perform this procedure on a hot
or running engine. Allow the engine to cool.
There will be fuel in the fuel filter. Keep away from sparks, cigarettes, flames or other sources of ignition.
This procedure will allow some fuel to spill. Catch fuel in a rag. Wipe up any spilled fuel immediately.
The fuel filter must be reassembled carefully with the O-ring, filter cup, and hoses in place. Improper assembly or replacement could result in a fuel leak, which could result in a fire or explosion hazard.
If the water separator-alert indicator blinks or the buzzer sounds intermittently, perform the following procedure.
TIP: The buzzer sounds only when the remote control lever is placed in neutral.
1. Fuse puller
1. Manual valve screw
ZMU08320
1
1
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89
(1) Stop the engine. (2) Remove the top cowling. (3) Disconnect the water detection switch
coupler. NOTICE: Be careful not to get any water on the water detection switch coupler, otherwise a malfunc- tion could occur. [ECM01951]
(4) Remove the cover.
(5) Remove the hose holder, and then re- move the fuel filter from its holder.
1. Water separator-alert indicator
1
ZMU05441
ZMU06297
ZMU07012
1. Water detection switch coupler
1. Cover
1. Holder 2. Fuel filter
1
1
1
2
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90
(6) Unscrew the filter cup, and then remove the O-ring from the filter cup. NOTICE: Be careful not to twist the water de- tection switch lead when unscrewing the filter cup. [ECM01961]
(7) Drain the water in the filter cup by soak- ing it up with a rag.
(8) Put the O-ring on the filter cup in its orig- inal position, and then install the filter cup onto the filter housing. NOTICE: Be careful not to twist the water detec- tion switch lead when screwing the fil- ter cup onto the filter housing. [ECM01971]
(9) Fit the fuel filter into its holder, and then fasten the hoses with the hose holder.
(10) Install the cover.
(11) Connect the water detection switch cou- pler securely until a click is heard.
(12) Install the top cowling. (13) Turn the main switch to the (on) po-
sition and check that the water separa- tor-alert indicator remains off and the buzzer does not sound. If the water sep- arator-alert indicator blinks or the buzzer sounds, have your Yamaha dealer check the outboard motor. NOTICE: Although the buzzer will stop when the engine is started and the remote control lever is moved to the forward or reverse posi- tion, do not use the outboard motor. Otherwise, serious engine damage could occur. [ECM02391]
EMU33502
Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the outboard motor until it has been com- pletely inspected. [ECM00402]
1. O-ring 2. Filter cup 3. Water detection switch lead
1. O-ring 2. Filter cup 3. Water detection switch lead
1
2 3
1
2
3
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Consumer information (For North America)
91
EMU29837
YAMAHA FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY
ZMU07048
Yamaha Motor Corporation, U.S.A. and Yamaha Motor Canada Ltd. (Yamaha) hereby warrant that new Yamaha four-stroke outboard motors will be free from defects in material and workmanship for the period of time stated herein, subject to certain stated limitations.
PERIOD OF WARRANTY. Any new Yamaha four-stroke outboard motor purchased from an authorized Yamaha dealer in the customers country of residence (United States or Canada) and registered with Yamaha will be warranted against defects in material or workmanship, subject to exclusions noted herein, for the following applicable period determined by type of use:
The second and third year of warranty (if applicable) shall be limited to covering the cost of parts and labor for major components only. The major components covered are:
WARRANTY REGISTRATION. To be eligible for warranty coverage, the outboard motor must be registered with Yamaha in the country of residence. Warranty registration can be accomplished by any authorized Yamaha Outboard Motor Dealer.
OBTAINING REPAIRS UNDER WARRANTY. During the period of warranty, any authorized Yamaha Outboard Motor Dealer in the country of residence will, free of charge, repair or replace, at Yamahas option, any parts adjudged defective by Yamaha due to faulty workmanship or material from the factory. All replaced parts will become the property of Yamaha. If the customer is temporarily using a U.S.-registered outboard motor in Canada, or a Canada-registered outboard motor in the United States, and it needs warranty repairs, the owner should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance. The local dealer will contact Yamaha on the owners behalf so that needed repairs can be made as quickly as possible.
CUSTOMERS RESPONSIBILITY. Under the terms of this warranty, the customer will be responsible for ensuring that the outboard motor is properly operated, maintained, and stored as specified in the applicable Owners Manual. The owner of the outboard motor shall give notice to an authorized Yamaha Outboard Motor Dealer of any and all apparent defects within ten (10) days of discovery and make the motor available at that time for inspection and repairs at the dealers place of business.
Replacement parts used in warranty repairs will be warranted for the balance of the applicable warranty period.
Pleasure use three (3) years from the date of purchase.
Power Unit Section Power Head Intake Manifold Carburetor Assembly and its Related Components Fuel Injection System and its Related Components Fuel and Oil Pump Assemblies Ignition System (Standard and Microcomputer) Lower Unit Section Bracket Section Exhaust System Bracket System Upper Casing Power Trim and Tilt Assembly Lower Unit Assembly
Commercial application one (1) year from the date of purchase. A commercial application is defined as any use of the outboard motor to generate income (excluding tournament fishing) or support business operations in any way during the warranty period, without regard to the type or percentage of commercial use. Yamaha reserves the right to modify incorrect registration data and reduce the warranty period to reflect commercial use.
Yamaha peripheral equipment included with the motor, such as gauges, fuel tanks, and hoses, remote control boxes, and wiring external from the motor unit, will be warranted for one (1) year from the date of purchase for either pleasure or commercial use.
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Consumer information (For North America)
92
ZMU07047
SPECIFIC PARTS EXCLUDED FROM WARRANTY. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs, shear pins, propellers, hubs, fuel and oil filters, brushes for the starter motor and power tilt motor, water pump impellers, and anodes, are not covered by warranty. Charges for removal of the motor from a boat and transporting the motor to and from an authorized Yamaha Outboard Motor Dealer are excluded from warranty coverage.
EMISSION CONTROL WARRANTY (United States only). Yamaha warrants to the ultimate purchaser and any subsequent owner, that the emission control components on this engine are designed, built and equipped so as to conform at the time of sale with applicable regulations under section 213 of the Clean Air Act and that this engine is covered against defects in materials and workmanship which cause said engine to fail to conform with applicable exhaust emission regulations for five (5) years from the date of purchase or 175 hours of operation, whichever comes first. Evaporative components (e.g., hoses, fuel tank, fuel cap) are two (2) years from the date of purchase. Some states have different emission control warranty provisions. As these vary from state to state, consult your Yamaha dealer or contact Yamaha Customer Relations at 1-866-894-1626 for more information.
TRANSFER OF WARRANTY Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having the motor inspected by an authorized Yamaha Outboard Motor Dealer and requesting the dealer to submit a change of registration to Yamaha within ten (10) days of the transfer.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE/PROVINCE TO PROVINCE.
YAMAHA MAKES NO OTHER WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE OBLIGATIONS AND TIME LIMITS STATED IN THIS WARRANTY ARE HEREBY DISCLAIMED BY YAMAHA AND EXCLUDED FROM THIS WARRANTY. SOME STATES/PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. ALSO EXCLUDED FROM THIS WARRANTY ARE ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING LOSS OF USE. SOME STATES/PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.
GENERAL EXCLUSIONS FROM WARRANTY. This warranty will not cover the repair of damage if the damage is a result of abuse or neglect of the product. Examples of abuse and neglect include, but are not limited to: 1. Racing or competition use, modification of original parts, abnormal strain. 2. Lack of proper maintenance and off season storage as described in the Owners Manual; installation of parts or accessories that are
not equivalent in design and quality to genuine Yamaha parts. 3. Operation of the motor at an rpm other than specified, use of lubricants or oils that are not suitable for outboard motor use. 4. Damage as a result of accidents, collisions, contact with foreign materials, or submersion. 5. Growth of marine organism on motor surfaces. 6. Normal deterioration.
Specific parts excluded from the second and third year of warranty (if applicable) are: Top and Bottom Cowling Electric Components (other than ignition system) Rubber Components (such as hoses, tubes, rubber seals, fittings, and clamps)
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Consumer information (For North America)
93
EMU29846
IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE U.S.A. OR CANADA
Welcome to the Yamaha Family!
Congratulations on the purchase of your new Yamaha products. Yamaha is commit- ted to exceptional customer satisfaction and we want your ownership experience to be a satisfying one. Please read the following warranty information to help ensure satisfaction with your Yamaha.
This model was manufactured with specifications appropriate for sale and use in the U.S.A. and Canada. Please note the following information:
Your Yamaha model may not be sold in some countries. Therefore, a Yamaha dealer outside the United States or Canada may not have all of the replacement parts or technical information available to provide proper service. This may unavoidably delay repairs. Thank you for your understanding should this happen.
TIP:
1. As explained in the Limited Warranty Statement, the Yamaha warranty covers your Yamaha when it is registered and used in your country of residence. If you are temporarily using a U.S.-registered outboard motor in Canada, or a Canada- registered outboard motor in the United States, and it needs warranty repairs, you should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance. The local dealer will contact Yamaha on the owners behalf so that needed repairs can be made as quickly as possible.
2. If you need repairs while temporarily using your Yamaha in another country, contact the local authorized Yamaha distributor for that country. Yamaha will work with that distributor to make the needed repairs as quickly as possible. If you have to pay for a repair that you believe your warranty would have covered at home, present all repair orders, receipts, or other related documents to your local dealer when you return home. He will be able to contact Yamaha on your behalf to see if any refund can be provided.
3. If your Yamaha is registered or used primarily outside the United States or Canada, the warranty printed in this manual does not apply to you. Contact the dealer who sold the Yamaha marine power unit to you for customer support information.
ZMU05199
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94
INDEX
6Y8 Multifunction meters...................... 37
A Accident reporting .................................. 4 Alcohol and drugs................................... 2 Alert system.......................................... 41 Anode(s), inspecting and replacing ...... 82 Anti-fouling paint .................................. 21 Approval label of emission control
certificate............................................ 21 Avoid collisions....................................... 3
B Basic boating rules (Rules of the road)... 6 Battery .................................................. 50 Battery, checking
(electric start models) ......................... 82 Battery, connecting .............................. 83 Battery, disconnecting.......................... 83 Battery requirements ............................ 16 Boat education and training ................... 4 Boat horsepower rating ........................ 16 Boating organizations............................. 5 Boating safety......................................... 2 Boating safety publications .................... 5 Breaking in engine ................................ 46
C Carbon monoxide................................... 2 CE Marking / UKCA Marking................ 10 Checks after engine warm up............... 54 Checks after starting engine................. 54 Checks before starting engine.............. 47 Cleaning and anticorrosion
measures............................................ 65 Cleaning the outboard motor ............... 66 Clock .................................................... 36 Collisions with floating or submerged
objects.................................................. 3 Compliance mark label ......................... 11 Components diagram........................... 24 Control functions, checking.................. 48 Cooling water ....................................... 54 Cowling, installing................................. 49
Cowling lock lever................................. 32
D Digital speedometer.............................. 35 Digital tachometer ................................ 34
E EC Declaration of Conformity (DoC)..... 10 Electric shock ......................................... 1 Emergency equipment.......................... 21 Emergency, temporary action in........... 87 Emission control information ................ 21 Engine data recording .......................... 14 Engine oil .............................................. 48 Engine oil, changing ............................. 74 Engine oil, filling.................................... 46 Engine oil requirements ........................ 18 Engine shut-off cord (lanyard) .......... 1, 48 Engine shut-off cord (lanyard) and
clip ...................................................... 29
F Filling fuel.............................................. 51 First-time operation .............................. 46 Flushing cooling water passage ........... 66 Flushing device............................... 33, 49 Flushing with the flushing
attachment ......................................... 64 Free accelerator.................................... 28 Fuel filter ............................................... 33 Fuel filter, checking............................... 48 Fuel gauge ............................................ 36 Fuel leaks, checking for ........................ 47 Fuel level............................................... 47 Fuel level-alert indicator ....................... 37 Fuel requirements ................................. 19 Fuel system........................................... 47 Fuse, replacing ..................................... 87
G Gasoline............................................ 2, 19 Gasoline Additives ................................ 20 Gasoline exposure and spills.................. 2 Gear oil, changing................................. 80
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INDEX
95
Greasing ............................................... 72
H Hot parts................................................. 1 Hour meter............................................ 34
I Identification numbers record............... 10 Idle speed, inspecting .......................... 74 Impact damage..................................... 87 Installation requirements ...................... 16
K Key number .......................................... 10
L Laws and regulations.............................. 5 Low battery voltage-alert indicator....... 37 Low oil pressure alert ........................... 41 Low oil pressure-alert indicator ............ 35 Lubrication............................................ 65
M Main switch .......................................... 30 Maintenance chart 1............................. 69 Maintenance chart 2............................. 71 Maintenance interval guidelines ........... 68 Modifications .......................................... 2 Mounting height.................................... 44 Mounting outboard motor .................... 16 Mounting the outboard motor .............. 44 Muddy or acidic water.......................... 20
N Neutral interlock trigger ........................ 28
O Operating engine .................................. 51 Operating in salt water or other
conditions........................................... 62 Outboard motor, checking ................... 49 Outboard motor disposal
requirements ...................................... 21
Outboard motor (painted surface), checking ............................................. 67
Outboard motor safety ........................... 1 Outboard motor serial number ............. 10 Overheat alert ....................................... 41 Overheat-alert indicator........................ 35 Overloading ............................................ 3
P Passenger training .................................. 5 Passengers ............................................. 2 People in the water ................................. 2 Periodic maintenance ........................... 67 Personal flotation devices (PFDs) ........... 2 Power trim and tilt .................................. 1 Power trim and tilt switch (bottom
cowling) .............................................. 31 Power trim and tilt switch (remote
control) ............................................... 30 Power trim and tilt system.................... 50 Power trim and tilt will not operate....... 88 Propeller ................................................. 1 Propeller, inspecting............................. 78 Propeller, installing ............................... 79 Propeller, removing............................... 79 Propeller selection ................................ 17
R Read manuals and labels ..................... 12 Remote control box .............................. 27 Remote control lever ............................ 27 Remote control requirements ............... 16 Replacement parts ............................... 67 Replacing the engine oil filter ............... 77 Rotating parts ......................................... 1 Rules when encountering vessels .......... 6
S Sending fuel.......................................... 51 Shallow water ....................................... 61 Shifting.................................................. 55 Shifting (checks after engine warm
up)....................................................... 54 Spark plug, inspecting.......................... 73
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INDEX
96
Specifications ....................................... 15 Speedometer ........................................ 35 Star labels............................................. 22 Starting engine ..................................... 52 Start-in-gear protection........................ 18 Steering and sailing rules and sound
signals .................................................. 6 Stop switches ....................................... 54 Stopping boat....................................... 56 Stopping engine ................................... 56 Storing outboard motor ........................ 63 Submerged outboard motor................. 90
T Tachometer .......................................... 34 Throttle friction adjuster........................ 29 Tilt support lever................................... 32 Tilting up and down .............................. 59 Top cowling, removing ......................... 47 Transporting and storing outboard
motor .................................................. 63 Trim meter ............................................ 34 Trim tab with anode.............................. 31 Trimming outboard motor..................... 57 Trip meter ............................................. 36 Troubleshooting.................................... 84
V Voltmeter .............................................. 37
W Warming up engine .............................. 54 Warning labels ...................................... 12 Warranty information (use outside
the U.S.A. or Canada) ........................ 93 Warranty, limited................................... 91 Water separator alert ............................ 42 Water separator-alert is activated
after leaving port ................................ 88 Weather .................................................. 4 Wiring and connectors, inspecting....... 78
Y Yamaha Security System
(Y-COP/Optional)................................ 26 Yamalube.............................................. 78
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EMU43024
For your best ownership experience, think Genuine Yamaha!
Genuine Yamaha Parts Genuine Yamaha replacement parts are the exact same parts as the ones originally equipped on your vehicle, providing you with the performance and du- rability you have come to expect. Why settle for aftermarket parts that may not provide full confidence and satisfaction?
Genuine Yamaha Accessories Yamaha only offers accessories that meet our high stan- dards for quality and performance. Buy with confidence, knowing your Genuine Yamaha Ac- cessories will fit right and perform right right out of the box.
Yamalube Take care of your Yamaha with legendary Yamalube oils, lubricants, and care products. Theyre formulated and approved by the toughest judges we know: the Yamaha engineering teams that know your Yamaha from the inside out.
Genuine Yamaha Service Manuals Get the same factory manual for your vehicle that the technicians at your authorized Yamaha dealer use. Service manuals are available through your Yamaha dealer or you can order them directly through yamahapubs.com (USA only).
Genuine Yamaha products are available only from your Yamaha dealer.
Find out more at www.yamahamotor in your country of residence.
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Printed in Japan December 20211.1 1 CR
U6FN36E0.book P
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