Yamaha VX150C Owner's Manual

Printed in JapanMarch 2003-0.5 × 1 !67M-28199-15(150LETO)(E)Printed on recycled paperVX150COWNER’S MANUALU.S.A.EditionLIT-18626-05-38 67M-9-15 Hyoshi

E1-5qwwr001464000577eEMU00014IMPORTANT LABELSWARNING LABELS2WARNING6Be sure shift control is in neutral6before starting engine. (except 2HP)6Do not to

E5-5607011411025qEMU00416TEMPORARY ACTION INEMERGENCYEMU01492IMPACT DAMAGEwThe outboard motor can be seriouslydamaged by a collision while operatingor

E5-6EMU00424STARTER WILL NOT OPERATEIf the starter mechanism does not operate(engine cannot be cranked with thestarter), the engine can be manually st

E5-7ONSTARTOFF701026301021208036301022EMU00430Emergency Starting Engine1) Remove the top cowling.2) Remove the flywheel cover.3) Prepare the engine fo

E5-8EMU00438ENGINE FAILS TO OPERATEIf the engine speed becomes erratic or theengine stops unexpectedly, or if theengine does not start, the following

E5-9000859N701014wqONSTARTOFF701022If an engine fails to start, use the follow-ing procedure.1) Adjust the trim angle so that theengine is vertical or

E5-10905013weqEMU01191LOW OIL LEVEL WARNINGACTIVATESIf the oil level is allowed to drop too low,the red segment will appear on the oillevel indicator,

E5-11NOTE:8 Reserve oil capacity is maximum 1,500cm3(1.6 US qt, 1.31 Imp qt).8 The oil feed pump will not operate if theengine is tilted more than 35°

E5-12EMU00446TREATMENT OF SUBMERGEDMOTORIf the outboard motor is submerged,immediately take it a Yamaha dealer.Otherwise, some corrosion may beginalmo

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EEMU00450Chapter 6INDEXINDEX...6-1123456 67M-9-15-6 1/30/03 9:58 Page 1

E1-6Stand-on vesselThe vessel with the right-of-way has theduty to continue its course and speed,except to avoid an immediate collision.When you maint

E6-1EMU00451INDEXAAdjusting trim angle...3-19BBasic boating rules ...1-6Battery care...

E6-2NNeutral interlock trigger ...2-3Neutral throttle lever ...2-3OOil level indicator...

EMU01599IMPORTANT WARRANTY INFORMATION FOR U.S.A. ANDCANADAWelcome to the Yamaha Family!Congratulations on the purchase of your new Yamaha marine powe

5. Your warranty applies specifically to repairs made in the country of purchase. If yourU.S.-purchased Yamaha needs warranty service while in Canada,

EMU00912*YAMAHA MOTOR CORPORATION, U.S.A.OUTBOARD MOTOR TWO YEAR LIMITED WARRANTYYamaha Motor Corporation, U.S.A. is proud of its heritage and reputat

SPECIFIC PARTS EXCLUDED FROM WARRANTY. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs,shear pins, propellers, hubs,

CUSTOMER SERVICEIf your machine requires warranty service, you must take it to any authorized Yamaha outboard dealer within the continental UnitedStat

EMU01178IMPORTANT WARRANTY INFORMATIONIF YOU USE YOUR YAMAHA OUTSIDE U.S.A. OR CANADAWelcome to the Yamaha Family!Congratulations on the purchase of y

Printed in JapanMarch 2003-0.5 × 1 !67M-28199-15(150LETO)(E)Printed on recycled paperVX150COWNER’S MANUALU.S.A.EditionLIT-18626-05-38 67M-9-15 Hyoshi

YAMAHA MOTOR CO., LTD.MADE IN JAPANPAYS D'ORIGINE JAPONOUTBOARD MOTOR WARRANTY REGISTRATIONENREGISTREMENT DE LA GARANTIE DU MOTEUR HORS-BORDPleas

E1-7RULES WHEN ENCOUNTERINGVESSELSThere are three main situations which youmay encounter with other vessels whichcould lead to a collision unless theS

PLACEPOSTAGEHEREATTN: WARRANTY DEPARTMENTWarranty card 2/27/02 11:47 AM Page 2

E1-8the power-driven vessel, the power-driven vessel has the right-of-way.2. Sailing vessels should keep clear ofany fishing vessel.3. In a narrow cha

E1-911A11Proceeding toward headof navigation from seawardCAN BUOYOdd number. Leave to port.ORSECONDARY CHANNEL BUOYSSTARTS NEW NUMBERING SYSTEMold n

E1-10EMU00017FUELING INSTRUCTIONSwGASOLINE AND ITS VAPORS ARE HIGH-LY FLAMMABLE AND EXPLOSIVE!8 Do not smoke when refueling, andkeep away from sparks,

E1-11EMU01804GASOLINEIf knocking or pinging occurs, use a differ-ent brand of gasoline or premium unlead-ed fuel.Recommended gasoline:Regular unleaded

E1-12EMU01775BATTERY REQUIREMENTcCDo not use a battery that does not meetthe specified capacity. If a battery whichdoes not meet specifications is use

E1-13EMU01395PROPELLER SELECTIONThe performance of your outboard motorwill be critically affected by your choice ofpropeller, as an incorrect choice c

E1-14EMU01209START-IN-GEAR PROTECTIONYamaha outboard motors or Yamahaapproved remote control units areequipped with start-in-gear protectiondevice(s).

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EEMU00037Chapter 2BASIC COMPONENTSMAIN COMPONENTS...2-1OPERATIONS OF CONTROLS ANDOTHER FUNCTIONS ...

E2-1EMU01206MAIN COMPONENTSTRIP TIME BATTKm/hknotmphkmmileSPEEDYAMAHAsetmode!4!5!6!7qwertyuio101101*!2101103*!1!0!31 Power trim and tilt switch2 Flush

E2-2EMU00039OPERATIONS OF CONTROLSAND OTHER FUNCTIONSEMU00096REMOTE CONTROLBoth the shifter and the throttle are actu-ated by the remote control lever

E2-3N701033wqEMU00099Neutral Interlock TriggerTo shift out of Neutral, the neutral inter-lock trigger of the remote control levermust first be pulled

E2-4000569qwEMU00934Engine Stop Lanyard SwitchThe lock-plate 1 must be attached to theengine stop lanyard switch for the engineto run. The lanyard 2 s

EMU01155Throttle Friction Adjusting ScrewA friction device in the remote control boxprovides adjustable resistance to move-ment of the remote control

EMU00113TRIM TABThe trim tab should be adjusted so thatthe steering control can be turned toeither the right or left by applying thesame amount of for

E2-7302012UPDOWNEMU01125POWER TRIM/TILT SWITCHThe power trim/tilt adjusts the motorangle in relation to the transom. Thepower trim/tilt switch is loca

E2-8001082001049qtwuyer001078001050EMU01614DIGITAL TACHOMETERThis gauge contains the tachometer, trimmeter, hour meter, oil level indicator, andthe ov

EThank you for choosing a Yamaha out-board motor. This Owner’s manual con-tains information needed for proper oper-ation, maintenance and care. A thor

E2-9001087001051qEMU01620Hour MeterThis meter shows the number of hoursthe engine has been run. It can be set toshow the total number of hours or then

E2-10802016*TRIP TIME BATTKm/hknotmphkmmileSPEEDYAMAHAsetmodeqwer001052qEMU01553Overheat Warning IndicatorIf the engine temperature rises too high,the

E2-11qwe802023*802024*TRIP TIME BATTKm/hknotmphkmmileSPEEDYAMAHAsetmodeEMU00141SpeedometerThe meter will show the boat speed.NOTE:The speedometer disp

E2-12802025*TRIP TIME BATTKm/hknotmphkmmileSPEEDYAMAHAsetmode802032TRIP TIME BATTKm/hknotmphkmmileSPEEDEMU01275ClockThis meter shows the current time.

E2-13P SmpgKm/LgphI/hECON SYNCTTLFUEL MANAGEMENT802031TRIP TIME BATTKm/hknotmphkmmileSPEEDYAMAHAsetmodeqwYAMAHAsetmodeP SmpgKm/LgphI/hECON SYNCTTLFUEL

E2-14YAMAHAP SgphI/hECON SYNCTTLFUEL MANAGEMENTsetmode2 65431ON(liter)l/h(gallon)gphqP SmpKmgphI/hECON SYNCTTLFUEL MANAGEMENT/LgEMU00147Fuel Flow Mete

E2-15P SmpgKm/LgphI/hECON SYNCTTLFUEL MANAGEMENTEMU01277Fuel EconomyThis meter displays the distance per literor gallon when cruising for reference us

E2-16P SmpgKm/LgphI/hECON SYNCTTLFUEL MANAGEMENTqwertP SmpgKm/LgphI/hECON SYNCTTLFUEL MANAGEMENTP SmpgKm/LgphI/hECON SYNCTTLFUEL MANAGEMENT000341EMU01

E2-17301021301022403033EMU00157TILT SUPPORT LEVERTo keep the outboard motor in the tilted-up position, lock the tilt support lever tothe clamp bracket

EEMU00170OVERHEAT WARNINGThis engine has an overheat warningdevice. If the engine temperature rises toohigh, the warning device will activate.(1); Inc

E123456CONTENTSGENERAL INFORMATIONBASIC COMPONENTSOPERATIONMAINTENANCETROUBLE RECOVERYINDEXREAD THIS OWNER’S MANUAL CAREFULLYBEFORE OPERATING YOUR OUT

EEMU00172OIL LEVEL WARNING / OIL FILTERCLOGGING WARNINGThis engine has an oil level warning sys-tem. If oil level falls below lower limit, thewarning

EEMU00174Chapter 3OPERATIONINSTALLATION ...3-1Mounting the outboard motor...3-2FILLING FUEL AND ENGINE O

E3-1EMU00175INSTALLATIONcCIncorrect engine height or obstructions tosmooth water flow (such as the design orcondition of the boat or accessories sucha

E3-2q104016EMU00176MOUNTING THE OUTBOARDMOTORwImproper mounting of the outboardmotor could result in hazardous condi-tions such as poor handling, loss

E3-3wOverpowering a boat may cause severeinstability. Do not install an outboardmotor with more horsepower than themaximum rating on the capacity plat

E3-4EMU00186FILLING FUELAND ENGINE OILEMU01031FILLING FUEL1) Remove the fuel tank cap.2) Fill the fuel tank carefully.3) Close the cap securely after

EMU01800FILLING OILThis engine uses the oil injection system,which provides superior lubrication byensuring the proper oil ratio for all operat-ing co

E3-6001475ON STARTOFF701024EMU01825Using remote oil tank1) Pour engine oil into the remote oiltank.NOTE:The oil level lines on the remote oil tankindi

E3-71,500 cm3(1.6 US qt,1.31 Imp qt)or lessEMU01543Oil Level IndicatorThe various oil level system functions are as follows:RemarksOil level indica-to

E3-8EMU00206Fuel8 Check to be sure you have plenty of fuelfor your trip.8 Make sure there are no fuel leaks orgasoline fumes.8 Check fuel line connect

EEMU00004Chapter 1GENERALINFORMATIONIDENTIFICATION NUMBERS RECORD ..1-1Outboard motor serial number...1-1Key number...

E3-9EMU00211Engine8 Check the engine and engine mounting.8 Look for loose or damaged fasteners.8 Check the propeller for damage.8 Check that the batte

E3-10EMU01779BREAKING IN ENGINEYour new engine requires a period ofbreak-in to allow mating surfaces of mov-ing parts to wear in evenly. Correct break

E3-11EMU01788Run the engine under load (in gear with apropeller installed) as follows.1) First 10 minutes:Run the engine at the lowest possiblespeed.

E3-12902023*001671EMU01197STARTING ENGINEw8 Before starting the engine, make surethat the boat is tightly moored and thatyou can steer clear of any ob

E3-13000293N701015EMU00248PROCEDURE FOR REMOTECONTROL MODEL4) Place the remote control lever in theNeutral position.NOTE:The start-in-gear protection

E3-14ONSTARTOFF701022EMU00949Electric Start Model7) Turn the main switch to “START”,and hold it for a maximum of 5 sec-onds.8) Immediately after the e

E3-15309013EMU01198WARMING UP ENGINE1) Before beginning operation, allow theengine to warm up at idling speed for3 minutes. (Failure to do this willsh

E3-16701043NFNR701044EMU00261SHIFTINGwBefore shifting, make sure there are noswimmers or obstacles in the water nearyou.cCTo change the shifting posit

E3-17ONSTARTOFF701023EMU00273STOPPING ENGINELet it cool off for a few minutes at idle orlow speed first. Stopping the engineimmediately after operatin

E3-18q000861EMU01412TRIMMING OUTBOARDMOTORThe trim angle of the outboard motorhelps determine the position of the bowof the boat in the water. The cor

EMU00008KEY NUMBERIf a main key switch is equipped with themotor, the key identification number isstamped on your key as shown in theillustration. Rec

E3-19ADJUSTING TRIM ANGLEEMU01401Power Trim/Tilt Modelw8 Be sure all people are clear of the out-board motor when adjusting thetrim/tilt angle, also b

E3-20001672q001673w001674eEMU19160Trim angle settings and boat handlingWhen the boat is on plane, a bow-up atti-tude results in less drag, greater sta

E3-21000856EMU01200TILTING UP/DOWNIf the engine will be stopped for sometime, or if the boat is moored in shallows,the engine should be tilted up to p

E3-22UPDN701034**UPDN403033302012UPDOWNEMU01201PROCEDURE FOR TILTING UPPower trim/tilt model1) If there is a fuel joint or a fuel cock onthe boat, dis

E3-23EMU00303PROCEDURE FOR TILTING DOWNPower trim/tilt model1) Push the power trim/tilt switch “UP”until the engine is supported by thetilt rod.2) Rel

EEMU00317Chapter 4MAINTENANCESPECIFICATIONS ...4-1TRANSPORTING AND STORING OUTBOARD MOTOR ...

E4-1EMU00318*SPECIFICATIONSRecommended fuelP.O.N.Fuel tank capacity L (US gal, Imp gal)Recommended engine oilLubrication Fuel : OilEngine oil capacity

E4-2000859EMU01369TRANSPORTING ANDSTORING OUTBOARD MOTORwLeaking fuel is a fire hazard. When trans-porting and storing the outboard motor,close the ai

E4-3cCDo not use the tilt support lever/knobwhen trailering the boat. The outboardmotor could shake loose from the tiltsupport and fall. If the motor

E4-4EMU00335Filling Fuel TankFill the fuel tank with fresh fuel and addone ounce of “Yamaha Fuel Conditionerand Stabilizer” (Part No. LUB-FUELC-12-00)

E1-2EMU01385EMISSION CONTROLINFORMATIONEMU01386NORTH AMERICAN MODELSThis engine conforms to U.S.Environmental Protection Agency (EPA)regulations for m

E4-5903021605014EMU00343Flushing with the Flushing AttachmentcCAvoid running the outboard at highspeed while on the flushing attachment,or overheating

E4-6EMU00350*Lubrication1) Remove the spark plug(s). Spray a“Yamaha Stor-Rite Engine FoggingOil” into each cylinder for 5 seconds.Grease the spark plu

E4-7901015UPPER LEVELLOWER LEVELEMU00353Battery CarewBattery electrolyte is poisonous and dan-gerous, causing severe burns, etc. It con-tains sulfur

E4-8EMU01569PERIODIC MAINTENANCEwBe sure to turn off the engine when youperform maintenance unless otherwisespecified. If the owner is not familiar wi

E4-9EMU19490MAINTENANCE CHARTFrequency of maintenance operations may be adjusted according to the operating con-ditions, but the following table gives

E4-10EMU00366GREASINGYamaha marine grease(Water resistant grease) 67M-9-15-4 2/28/03 9:20 Page 11

E4-11EMU01202CLEANING AND ADJUSTING SPARKPLUGwWhen removing or installing a spark plug,be careful not to damage the insulator. Adamaged insulator coul

When fitting the plug, always clean thegasket surface and use a new gasket.Wipe off any dirt from the threads andscrew in the spark plug to the correc

E4-13EMU00369CHECKING FUEL SYSTEMwGasoline (petrol) and its vapors are highlyflammable and explosive. Keep awayfrom sparks, cigarettes, flames or othe

E4-14EMU00370INSPECTING FUEL FILTERwGasoline (petrol) is highly flammable, andits vapors are flammable and explosive.8 If you have any question about

E1-3EMU00917SAFETYINFORMATION8 Before mounting or operating the out-board motor, read this entire manual.Reading it should give you an under-standing

E4-154) Reinstall the filter element in the cup.Make sure the O-ring is in position inthe cup. Insert the cup and O-ring intothe filter housing 6. Lif

E4-16A diagnostic tachometer should be usedfor this procedure. Results may varydepending on whether testing is conduct-ed with the flushing attachment

E4-17w000855retq000501tEMU01330REPLACING FUSEIf a fuse has blown, remove the electricalcover, open the fuse holder and removethe fuse with a fuse pull

EMU00993CHECKING POWER TRIM AND TILTSYSTEMw8 Never get under the lower unit while itis tilted, even when the tilt-supportlever is locked. Severe injur

E4-19210012602051602036602041*qwetyrEMU00388CHECKING PROPELLERwYou could be seriously injured if theengine accidentally starts while you arenear the p

EMU00397Installing the PropellercC8 Be sure to install the thrust washerbefore installing propeller, otherwise,lower case and propeller boss may bedam

E4-21EMU01460CHANGING GEAR OILw8 Be sure the outboard is securely fas-tened to the transom or a stable stand.You could be severely injured if the out-

E4-225) With the outboard motor in a verticalposition, and using a flexible or pres-surized filling device, inject the gearoil into the oil drain plug

E4-23EMU04041CHECKING BATTERY (for Electricstart models)wBattery electrolytic fluid is dangerous; itcontains sulfuric acid and therefore is poi-sonous

E4-24cC8 A poorly maintained battery will quick-ly deteriorate.8 Ordinary tap-water contains mineralsharmful to a battery, and should not beused for t

E1-48 When a swimmer is in the water nearyou shift into neutral and shut off theengine.8 Be informed about boating safety.Additional publications and

E4-25cC8 Make sure the main switch (on applica-ble models) is “OFF” before working onthe battery.8 Reversal of the battery leads will dam-age the rect

E4-26901014*wertyqwUse of smaller wire could lead to a fire.1 Battery for starting2 Battery for accessories3 Large red lead for starting battery4 Smal

E4-27EMU01172CLEANING COOLING-WATERPASSAGESFlushing device equipped modelPerform this procedure right after opera-tion for the most thorough flushing.

E4-28EMU00412Checking Painted Surface of MotorCheck the motor for scratches, nicks, orflaking paint. Areas with damaged paintare more likely to corrod

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EEMU00414Chapter 5TROUBLE RECOVERYTROUBLESHOOTING ...5-1TEMPORARY ACTION INEMERGENCY ...

E5-1EMU01204¯TROUBLESHOOTINGA problem in the fuel, compression, or ignition systems can cause poor starting, loss ofpower, or other problems. The trou

E5-2C. Engine idlesirregularly or stalls.Trouble Possible Cause Remedy1. Spark plug(s) fouled or incorrecttype.2. Fuel system obstructed.3. Fuel conta

E5-3D. Warning buzzersounds orindicator lamplights.Trouble Possible Cause Remedy1. Cooling system clogged.2. Engine oil level low.3. Heat range of spa

E5-4Trouble Possible Cause Remedy16. Thermostat faulty or clogged.17. Air vent screw closed.18. Fuel pump damaged.19. Fuel joint connection incorrect.