Summary of Content for Yamaha 150TXR v4 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...
(digital type) ... 18 Speedometer (digital type) ... 18 Trim meter ... 19 Trim meter (digital type) ... 19 Hour meter (digital type)... 19 Trip meter ... 20 Clock ... 20 Fuel gauge ... 20 Fuel warning indicator ... 21 Low battery voltage warning
plug ... 48 Checking fuel system... 49 Inspecting fuel filter ... 50 Cleaning fuel filter ... 50 Inspecting idling speed ... 51 Checking water in engine oil tank ... 51 Checking wiring and connectors ... 51 Exhaust leakage ... 51 Water leakage... 52 Checking power trim and tilt
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...
Do not overpower the boat with this out- board motor... Overpowering the boat could result in loss of control... The rated power of the outboard should be equal to or less than the rated horsepower capacity of the boat... If the rated horsepower capacity of the boat is unknown, consult the dealer or boat manufacturer...
Use common sense and good judgment when boating... Know your abilities, and be sure you understand how your boat han- dles under the different boating conditions you may encounter... Operate within your limits, and the limits of your boat... Always operate at safe speeds, and keep a careful watch for obstacles and other traffic...
United States Coast Guard and local agen- cies... You should be aware of these rules, and follow them whenever you encounter another vessel on the water... Several sets of rules prevail according to geographic location, but are all basically the same as the International Rules of the Road... The rules presented here in your Owners Manual are condensed, and have been pro- vided for your convenience only... Consult your local U... S... Coast Guard Auxiliary or De- partment of Motor Vehicles for a complete set of rules governing the waters in which you will be using your boat...
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...
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...
Take care not to spill gasoline... If gaso- line spills, wipe it up immediately with
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... Yamaha does not recommended gasohol containing methanol because it can cause fuel system damage or engine performance problems...
The performance of your outboard motor will be critically affected by your choice of propel- ler, as an incorrect choice could adversely affect performance and could also seriously damage the motor... Engine speed depends on the propeller size and boat load... If engine speed is too high or too low for good engine performance, this will have an adverse effect on the engine... Yamaha outboard motors are fitted with pro- pellers chosen to perform well over a range of applications, but there may be uses where a propeller with a different pitch would be more appropriate... For a greater operating load, a smaller-pitch propeller is more suit- able as it enables the correct engine speed to be maintained... Conversely, a larger-pitch propeller is more suitable for a smaller oper- ating load... Yamaha dealers stock a range of propellers, and can advise you and install a propeller on your outboard that is best suited to your ap- plication...
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 lock plate must be attached to the en- gine stop switch for the engine to run... The lanyard 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 lanyard will pull out the lock plate, stopping ignition to the engine... This will prevent the boat from running away un- der 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, then tilts it up... Pressing the switch (down) tilts the outboard mo- tor 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-
To remove the engine top cowling, pull up the lock lever(s) and lift off the cowling... When installing the cowling, check to be sure it fits properly in the rubber seal... Then lock the cowling by moving the lever(s) down- ward...
1... Tachometer 2... Trim meter 3... Hour meter 4... Oil level indicator 5... Overheat warning indicator 6... Water separator warning indicator 7... Engine trouble warning indicator 8... Set button 9... Mode button
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
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...
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 fuel level reading can be affected by the position of the sensor in the fuel tank and the attitude of the boat in the water... Operation with bow-up trim or continuous turning can
This engine has an oil level warning system... If the oil level falls below the lower limit, the warning system 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,
Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or depth finder transducers) can create airborne water spray while the boat is cruising... Severe engine damage may result if the motor is operated continuously in the presence of
motor greatly affects the water resistance... If the mounting height is too high, cavitation tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the en- gine to overheat... If the mounting height is too low, the water resistance will increase and thereby reduce engine efficiency... Mount the outboard motor so that the anti-cavitation plate is in alignment with the bottom of the boat...
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...
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
The oil level lines on the remote oil tank indi- cate the amount of additional oil that can be added to the tank... The top oil level line indi- cates approximately 1... 9 L (0... 5 US gal, 0... 4 Imp gal) can be added, and the bottom oil level line indicates approximately 3... 8 L (1 US
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
4... Open the throttle slightly without shifting using the neutral throttle lever or free ac- celerator... You may need to change the throttle opening slightly depending on engine temperature... After the engine starts, return the throttle to the original position...
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
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...
Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make steering the boat more difficult... This in- creases the possibility of an accident... If the boat begins to feel unstable or is hard to steer, slow down and/or readjust the
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... The trim tab can also be adjusted to help offset this effect... When the bow of the boat is down, it is easier to accelerate from a standing start onto plane...
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...
5... Models equipped with trim rods: Once the outboard motor is supported with the tilt support lever, press the power trim and tilt switch / power tilt switch (down) to retract the trim rods...
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-
Yamaha strongly recommends that you use the optional chromium-plated water pump kit (not available for some models) if you use the outboard motor in turbid or muddy water conditions...
(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...
7... Just prior to turning off the engine, quick- ly spray Yamaha Stor-Rite Engine Fogging Oil (Part No... LUB-STRRT-12- 00) alternately into each carburetor/ each intake manifold... When properly done, the engine will smoke excessively and almost stall...
3... Change the gear oil... For instructions, see page 54... Inspect the oil for the pres- ence of water which indicates a leaky seal... Seal replacement should be per- formed by an authorized Yamaha dealer prior to use...
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 the same type and of equivalent strength and materi- als... Any part of inferior quality may malfunc- tion, and the resulting loss of control could endanger the operator and passengers... Yamaha genuine parts and accessories 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
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 lanyard from the engine stop switch... Turn off the battery cut-off switch if your boat has one...
Never get under the lower unit while it is tilted, even when the tilt support lever or knob is locked... Severe injury could occur if the outboard motor accidental-
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...
If the engine cannot be tilted up or down with the power trim and tilt / the power tilt because of a discharged battery or a failure with the power trim and tilt unit / the power tilt unit, the engine can be tilted manually... 1... Loosen the manual valve screw by turn-
4... Prepare the engine for starting... For fur- ther information, see page 30... Be sure the engine is in neutral and that the en- gine stop switch lanyard lock plate is at- tached to the engine stop 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 May 20060... 1 1 ! Printed on recycled paper
Please complete and mail this card... This information is necessary to accurately register your unit for warranty... Veuillez signer ci-dessous pour attester que le montage et linspection ont t faits dans le respect des directives dinspection et
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