Summary of Content for Yamaha 150TXR v3 Owner's Manual PDF
Thank you for choosing 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 ob- tain 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...
Alcohol and drugs ... 5 Personal flotation devices ... 5 People in the water ... 5 Passengers ... 5 Overloading... 5 Avoid collisions ... 5 Weather ... 6 Accident reporting ... 6 Boat education and training ... 6 Passenger training ... 6 Boating safety publications ... 6 Laws and regulations ... 6
plug ... 53 Checking fuel system ... 54 Inspecting fuel filter ... 55 Cleaning fuel filter ... 55 Inspecting idling speed... 56 Checking water in engine oil tank ... 56 Checking wiring and connectors ... 56 Exhaust leakage... 56 Water leakage ... 57 Checking power trim and tilt
operate... 68 Starter will not operate ... 68 Emergency starting engine ... 69
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...
EMISSION CONTROL INFORMATION ENGINE FAMILY : THIS ENGINE CONFORMS TO 2001 U... S... EPA REGULATIONS FOR MARINE SI ENGINES... REFER TO THE OWNERS MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS... FELs : SPARK PLUG : DISPLACEMENT : ADVERTISED POWER :
YAMALUBE 2 STROKE OUTBOARD OIL or an equivalent TC-W3 certified ouboard oil...
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 people stranded, or running over people or objects... 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...
Consult your boat manufacturers instruc- tions for details about appropriate passenger locations in your boat and be sure all pas- sengers are positioned properly before ac- celerating 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- erly, alert your passengers if you must make any unusual maneuver... Always avoid jump- ing waves or wakes...
You may also want to consider an Internet- based program for basic boater education... The Online Boating Safety Course provided by the BoatU... 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 comple- tion immediately or, for a small charge, re- quest one by mail... To take this free course, go to boatus... org...
Just as there are rules that apply when you are driving on streets and highways, there are waterway rules that apply when you are driving your boat... These rules are used inter- nationally... (For USA: 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 en- counter another vessel on the water...
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 vessels...
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, numbers 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 wa- ter into port, and black buoys are to port (left) side... When navigating out of port, your posi- tion with respect to the buoys should be re- versed; 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 regulato- ry or advisory information... These markers are white with black letters and orange boarders... They signify speed zones, restrict- ed areas, danger areas, and general infor- mation... Remember, markings may vary by geo- graphic location... Always consult local boat- ing authorities before driving your boat in unfamiliar waters...
There are two types of gasohol: gasohol con- taining ethanol and that containing metha- nol... Gasohol containing ethanol can be used if ethanol content does not exceed 10% and the fuel meets minimum octane ratings... E-85 is a fuel blend containing 85% ethanol and therefore must not be used in your outboard motor... All ethanol blends containing more than 10% ethanol can cause fuel system damage or engine performance problems... Yamaha does not recommend gasohol-con- taining methanol because it can cause fuel system damage or engine performance problems...
Next to selecting an outboard, choosing the right propeller is one of the most important purchasing decisions a boater can make... The type, size, and design of your propeller have a direct impact on acceleration, top speed, fuel economy, and even engine life... Yamaha designs and manufactures propel- lers for every Yamaha outboard motor and
every application... Your outboard motor came with a Yamaha propeller chosen to perform well over a range of applications, but there may be uses where a different propeller would be more appropriate... 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, chose a larger pitch propel- ler for a smaller operating load and a smaller pitch propeller for a heavier load... If you carry loads that vary widely, chose 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... For instructions on propeller removal and in- stallation, see page 58...
1... Power trim and tilt switch 2... Flushing device 3... Tilt support lever 4... Anti-cavitation plate 5... Trim tab (anode) 6... Propeller* 7... Cooling water inlet 8... Anode 9... Clamp bracket 10... Top cowling lock lever 11... Choke knob 12... Top cowling 13... Cooling water pilot hole 14... Remote control box (side mount type)*
Moving the lever forward from the neutral po- sition engages forward gear... Pulling the le- ver back from neutral engages reverse... The engine will continue to run at idle until the le- ver is moved about 35 (a detent can be felt)... Moving the lever farther opens the throttle, and the engine will begin to accelerate...
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...
The power trim and tilt system adjusts the outboard motor angle in relation to the tran- som... Pressing the switch (up) trims the outboard motor up, and then tilts it up... Press- 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...
Use the power trim and tilt switch located on the bottom engine cowling only when the boat is at a complete stop with the en- gine 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 obsta-
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 trail- ered in the normal running position, use an additional support device to secure it
1... Tachometer 2... Trim meter 3... Hour meter 4... Oil level indicator 5... Overheat-warning indicator 6... Set button 7... Mode button
This indicator shows the engine oil level... If the oil level falls below the lower limit, the warning indicator will start to blink... For fur- ther information, see page 27...
After the main switch is first turned on, all segments of the display come on as a test... After a few seconds, the gauge will change to normal operation... Watch the gauge when turning on the main switch to make sure all
Press the (mode) button repeatedly until the indicator on the face of the gauge points to (time)... To set the clock, be sure the gauge is in the (time) mode... Press the (set) button; the hour display will begin blinking... Press the (mode) button until the desired hour is displayed... Press the (set) button again, the minute display will begin blinking... Press the (mode) button until the desired minute is dis- played... Press the (set) button again to start the clock...
The Yamaha fuel tank sensor differs from conventional sensors... Incorrectly setting the selector switch on the gauge will give false readings... Consult your Yamaha dealer on how to correctly set the selec-
This engine has an overheat-warning de- vice... If the engine temperature rises too high, the warning device will activate...
The warning for oil filter clogging is similar to the warnings for low oil level and overheat- ing... To make troubleshooting easier, check for engine overheating first, then oil level,
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 water in- takes for the cooling system may not get ad- equate water supply, which can cause engine overheating... If the engine is mounted too low, water resistance (drag) will in- crease, thereby reducing engine efficiency and performance... Most commonly, outboard motor should be mounted so that the anti-cavitation plate is in alignment with the bottom of the boat... The optimum mounting height of the outboard motor is affected by the boat/motor combina- tion and the desired use... Test runs at differ- ent heights can help determine the optimum mounting height... Consult your Yamaha deal- er or boat manufacturer for further informa- tion on determining the proper mounting height...
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 airborne water spray while the boat is cruising... If the motor is operated con- tinuously in the presence of airborne water spray, enough water could enter the engine through the intake opening on the cowling to cause severe engine damage... Eliminate the cause of the air-
Accelerate at full throttle onto plane, then reduce engine speed to three-quar- ter throttle (approximately 4000 r/min)... Vary engine speed occasionally... Run at full throttle for one minute, then allow about 10 minutes of operation at three- quarter throttle or less to let the engine cool...
Gasoline is a precise blend of many different substances, each chosen to give certain characteristics... Gasoline blends have been changing in recent years in response to con- cerns about pollution and resulting emis- sions regulations... One of the most obvious changes has been the elimination of lead from most fuels... As gasoline has changed, the amount of ad- ditives such as aromatics and oxygenates has increased... These additives are impor- tant for the engines in passenger cars, but they can have detrimental effects in marine engines, because of increased deposits in the combustion chamber... When enough de- posits collect, piston rings begin sticking... Performance drops and engine wear in- creases dramatically... While many additives available may reduce deposits, Yamaha recommends the use of
system, which provides superior lubrication by ensuring the proper oil ratio for all operat- ing conditions... No fuel premixing is needed... Simply pour gasoline into the fuel tank and oil into the oil tank... Convenient indicators show the status of the oil supply... For details on how to read the indicators, see page 34... To fill the engine oil tank, proceed as follows: 1... Pour engine oil into the remote oil tank...
Buzzer sounds in remote control box and engine speed is limited to about 2000 r/min to help conserve oil...
This product emits exhaust gases which contain carbon monoxide, a col- orless, odorless gas which could cause brain damage or death when inhaled... Symptoms include nausea, dizziness, and drowsiness... Keep cockpit and cab- in areas well ventilated... Avoid blocking
Avoid accidentally pulling the cord dur- ing normal operation... Loss of engine power means the loss of most steering control... Also, without engine power, the boat could slow rapidly... This could cause people and objects in the boat to
A continuous flow of water from the cool- ing water pilot hole shows that the water pump is pumping water through the cool- ing passages... If water is not flowing out of the hole at all times while the engine is running, overheating and serious dam- age 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
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...
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...
To raise the bow (trim-out), press the switch (up)... To lower the bow (trim-in), press the switch (down)... Make test runs with the trim set to different angles to find the position that works best for your boat and operating conditions...
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...
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 trail- ered in the normal running position, use an additional support device to secure it in the tilt position... For more detailed in-
4... Models equipped with trim rods: Once the outboard motor is supported with the tilt support lever, press the power trim and tilt switch (down) to retract the trim rods...
After operating in salt water, flush the cooling water passages with fresh water to prevent them from becoming clogged... Also rinse the outside of the outboard motor with fresh wa- ter and, if possible, rinse the power head un- der the cowling...
(AL) stated in the specification data below represents the numerical value for the alumi- num propeller installed... Likewise, (SUS) represents the value for stainless steel propeller installed and (PL)
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 prior to storage... However, you, the owner, with a minimum of tools, can perform the fol- lowing procedures...
5... Cooling system flushing is essential to prevent the cooling system from clog- ging up with salt, sand, or dirt... In addi- tion, fogging/lubricating of the engine is mandatory to prevent excessive engine damage due to rust... Perform the flush-
Follow the manual of the battery for the han- dling of the battery... Batteries vary among manufacturers... Therefore the following pro- cedures may not always apply... Consult your battery manufacturers instructions... Procedure 1... Disconnect and remove the battery from
Do not leave the garden hose connector loose on the bottom cowling fitting or let the hose hang free during normal opera- tion... Water will leak out of the connector instead of cooling the engine, which can cause serious overheating... Be sure the connector is tightened securely on the fit-
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 passengers... Yamaha genuine parts and ac- cessories are available from your Yamaha dealer...
Frequency of maintenance operations may be adjusted according to the operating condi- tions, but the following table gives general guidelines... Refer to the sections in this chapter for explanations of each owner-specific action...
Spark plug(s) Cleaning / adjustment / replacement
When removing or installing a spark plug, be careful not to damage the insulator... A damaged insulator could allow external
The spark plug is an important engine com- ponent and is easy to inspect... The condition of the spark plug can indicate something about the condition of the engine... For exam- ple, 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 outboard motor to a Yamaha dealer... You should periodically re- move and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode... If electrode erosion becomes excessive, or if carbon and other deposits are excessive, you should re- place the spark plug with another of the cor- rect type...
3... Remove the filter element, and wash it in solvent... Allow it to dry... Inspect the filter element and O-ring to make sure they are in good condition... Replace them if necessary... If any water is found in the fuel, the Yamaha portable fuel tank or other fuel tanks should be checked and cleaned...
Correct idling speed inspection is only possi- ble if the engine is fully warmed up... If not warmed up fully, the idle speed will measure higher than normal... If you have difficulty ver- ifying the idle speed, or the idle speed re- quires adjustment, consult a Yamaha dealer
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...
Before inspecting, removing, or install- ing the propeller, remove the spark plug caps from the spark plugs... Also, place the shift control in neutral, turn the main switch to (off) and re- move the key, and remove the cord from the engine shut-off switch... Turn off the battery cut-off switch if your boat has one...
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...
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...
1... Check the electrolyte level at least once a month... Fill to the manufacturers rec- ommended level when necessary... Top up only with distilled water (or pure de- ionized water suitable to use in batter- ies)...
2... Always keep the battery in a good state of charge... Installing a voltmeter will help you monitor your battery... If you will not use the boat for a month or more, re- move the battery from the boat and store it in a cool, dark place... Completely re- charge the battery before using it...
A clean hull improves boat performance... The boat bottom should be kept as clean of ma- rine growth as possible... If necessary, the boat bottom can be coated with an anti-foul- ing paint approved for your area to inhibit marine growth... Do not use anti-fouling paint which includes copper or graphite... These paints can cause more rapid engine corrosion...
A problem in the fuel, compression, or igni- tion systems can cause poor starting, loss of power, or other problems... This section de- scribes basic checks and possible remedies, and covers all Yamaha outboard motors... Therefore some items may not apply to your model... If your outboard motor requires repair, bring it to your Yamaha dealer... If the engine trouble-warning indicator is flashing, consult your Yamaha dealer...
Q... Is ignition wiring damaged or poorly con- nected? A... Check wires for wear or breaks... Tighten all loose connections... Replace worn or bro- ken wires...
Q... Is ignition wiring damaged or poorly con- nected? A... Check wires for wear or breaks... Tighten all loose connections... Replace worn or bro- ken wires...
If the fuse has blown on an electric start model, open the fuse holder and replace the fuse with a new one of the proper amperage...
When the emergency starter rope is used to start the engine, the start-in- gear protection device does not oper- ate... Make sure the remote control lever is in neutral... Otherwise the boat could unexpectedly start to move, which could result in an accident...
4... Prepare the engine for starting... For fur- ther information, see page 35... Be sure the engine is in neutral and that the clip is attached to the engine shut-off switch... The main switch must be (on), if equipped...
If the oil level is allowed to drop too low, the red segment will appear on the oil level indi- cator, the buzzer will sound, and engine speed will be limited to about 2000 r/min... If this happens, a reserve amount of oil can be pumped from the remote oil tank to the en- gine oil tank using the emergency switch...
If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer... Otherwise some corrosion may begin almost immedi- ately... If you cannot immediately take the outboard motor to a Yamaha dealer, follow the proce- dure below in order to minimize engine dam- age...
4... Feed fogging oil or engine oil through the carburetor(s) and spark plug holes while cranking with the manual starter or emergency starter rope...
Important warranty information for U... S... A... and Canada
YAMAHA MOTOR CORPORATION, U... S... A... OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY
IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA
Printed in Japan March 20080... 1 1 ! Printed on recycled paper
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