
Printed in JapanApril 2003-0.5 × 1 !6G8-28199-1M(F9.9BMH, F9.9BE, FT9.9AEH, FT9.9AE)(E)Printed on recycled paperF9.9CT9.9COWNER’S MANUALU.S.A.EditionL
E1-58 Be informed about boating safety.Additional publications and informationcan be obtained from many organiza-tions, including the following:United
E5-3Trouble Possible Cause RemedyE. Engine vibratesexcessively.1. Propeller damaged.2. Propeller shaft damaged.3. Weeds or other foreign matter tangle
E5-4607011EMU04160TEMPORARY ACTION INEMERGENCYEMU14920IMPACT DAMAGEwThe outboard motor can be seriouslydamaged by a collision while operatingor traile
E5-5EMU04230STARTER WILL NOT OPERATEIf the starter mechanism does not operate(engine cannot be cranked with the starter),the engine can be started wit
E5-6208032OFF000977ON208033EMU18741Procedure1) To remove the cowling: depress thelock-lever at the rear of the cowling,and lift the cowling up and bac
E5-7EMU04340ENGINE FAILS TO OPERATEEMU04420Cold Engine Fails to Start1) Place the gear shift lever / remote con-trol lever in the neutral position.2)
E5-8EMU15110TREATMENT OF SUBMERGEDMOTORIf the outboard motor is submerged, imme-diately take it a Yamaha dealer. Otherwise,some corrosion may begin al
E-MEMO- 6G8-9-1M-5 4/4/03 11:46 AM Page 10
EMU04500Chapter 6INDEXINDEX...6-1E123456 6G8-9-1M-6 4/4/03 12:04 PM Page 1
E6-1EMU04510INDEXAAdjusting trim angle ...3-22Air vent screw ...2-2Approval label o
E6-2Mounting the outboard motor ...3-2NNeutral interlock trigger ...2-7Neutral throttle lever ...
E1-6001519weqWARNINGThis engine is equipped with a neutral starting device. The engine will not start unless the shift control isin neutral position.6
EMU15990IMPORTANT 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 your U.S.-purchased Yamaha needs warranty service while in Canada
EMU14040YAMAHA MOTOR CORPORATION, U.S.A.FOUR-STROKE OUTBOARD MOTORTHREE-YEAR LIMITED WARRANTYYamaha Motor Corporation, U.S.A. hereby warrants that new
SPECIFIC PARTS EXCLUDED FROM WARRANTY. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs,shear pins, propellers, hubs,
EMU11780IMPORTANT WARRANTY INFORMATIONIF YOU USE YOUR YAMAHA OUTSIDE U.S.A. OR CANADAWelcome to the Yamaha Family!Congratulations on the purchase of y
Printed in JapanApril 2003-0.5 × 1 !6G8-28199-1M(F9.9BMH, F9.9BE, FT9.9AEH, FT9.9AE)(E)Printed on recycled paperF9.9CT9.9COWNER’S MANUALU.S.A.EditionL
YAMAHA MOTOR CO., LTD.MADE IN JAPANPAYS D'ORIGINE JAPONOUTBOARD MOTOR WARRANTY REGISTRATIONENREGISTREMENT DE LA GARANTIE DU MOTEUR HORS-BORDPleas
PLACEPOSTAGEHEREATTN: WARRANTY DEPARTMENTWarranty card 2/27/02 11:47 AM Page 2
E1-7EMU00150BASIC BOATING RULES(Rules of the road)Just as there are rules which apply whenyou are driving on streets and high ways,there are waterway
E1-8RULES WHEN ENCOUNTERINGVESSELSThere are three main situations which youmay encounter with other vessels whichcould lead to a collision unless the
E1-9Sailing vessel right-of-waySailing vessels should normally be giventhe right-of-way. The exceptions to this are:1. When the sailing vessel is over
E1-10Remember, markings may vary by geo-graphic location. Always consult local boat-ing authorities before driving your boat inunfamiliar waters.11A11
E1-11EMU00160FUELING INSTRUCTIONSwGASOLINE AND ITS VAPORS ARE HIGH-LY FLAMMABLE AND EXPLOSIVE!8 Do not smoke when refueling, andkeep away from sparks,
E1-12EMU18040GASOLINEIf knocking or pinging occurs, use a differ-ent brand of gasoline or premium unleadedfuel.Recommended gasoline:Regular unleaded g
E1-13EMU17690ENGINE OILRecommended engine oil:4-stroke motor oil with a combination of cor-responding SAE and API as shown in thechart.cCAll 4-stroke
E1-14EMU17750BATTERY REQUIREMENTcCDo not use a battery that does not meetthe specified capacity. If a battery whichdoes not meet specifications is use
6G8-9-1M-Hyoshi 3/29/03 4:03 PM Page 2
E1-15EMU13950PROPELLER SELECTIONThe performance of your outboard motorwill be critically affected by your choice ofpropeller, as an incorrect choice c
E1-161 Propeller diameter (in inches)2 Propeller pitch (in inches)3 Type of propeller (propeller mark)Refer to the section “CHECKING PRO-PELLER” for i
E-MEMO- 6G8-9-1M-1 4/4/03 11:32 AM Page 22
EMU00370Chapter 2BASIC COMPONENTSMAIN COMPONENTS...2-1OPERATIONS OF CONTROLS AND OTHER FUNCTIONS ...
E2-1EMU12060MAIN COMPONENTSqwer!0o!2!1ityu!5!7!8@2!3@1!4!9!6!5@0@1!9@3@4 @5!81 Top cowling2 Top cowling lock lever3 Cooling water pilot hole4 Oil drai
E2-2EMU00390OPERATIONS OF CONTROLSANDOTHER FUNCTIONSEMU14650FUEL TANKIf your model included a portable fuel tank,its parts and functions are as follow
E2-3310016qew001138qwEMU00510GEAR SHIFT LEVER (for Tiller con-trol model)Turning the gear-shift lever towards youengages the clutch with the forward g
E2-4209015306022EMU00600STARTER BUTTON (for Tiller controlmodel)When you push the starter button, the elec-tric starter motor cranks the engine to sta
E2-5001533EMU00720Engine Stop ButtonPushing this button opens the ignition circuitand stops the engine.001531q502013EMU00670Throttle IndicatorThe fuel
E2-6507011123701012qwertyRNFqwertyuutry701031EMU00740Gear shift leverTurning the gear-shift lever forward (bowside) engages the clutch with the forwar
EEMU14490TO THE OWNERThank you for choosing a Yamaha outboardmotor. This Owner’s manual contains infor-mation needed for proper operation, main-tenanc
E2-7701036N000324qwEMU00990Neutral Interlock TriggerTo shift out of Neutral, the neutral interlocktrigger of the remote control lever must firstbe pul
E2-8000569qwEMU09340Engine Stop Lanyard SwitchThe lock-plate 1 must be attached to theengine stop lanyard switch for the engine torun. The lanyard 2 s
E2-9701035EMU11550Throttle Friction Adjusting ScrewA friction device in the remote control boxprovides adjustable resistance to movementof the remote
E2-10EMU18750Steering Lock DeviceT9.9EHA boat with a rudder (such as a sailboat)can be steered with the boat’s rudder if theengine is locked in the st
E2-11EMU01160SHALLOW WATER LEVER (Ifequipped)Lifting this lever will tilt the motor up partiallyto provide more clearance when operatingin shallow wat
E2-12EMU01520TILT LOCK MECHANISM (for Manualtilt model)The tilt-lock mechanism is used to preventreverse thrust from the propeller lifting theoutboard
E-MEMO- 6G8-9-1M-2 4/4/03 11:34 AM Page 14
EMU01740Chapter 3OPERATIONINSTALLATION...3-1Mounting the outboard motor...3-2Clamping the outboard mo
E3-1EMU01750INSTALLATIONcCIncorrect engine height or obstructionsto smooth water flow (such as thedesign or condition of the boat or acces-sories such
E3-2EMU14780MOUNTING THE OUTBOARDMOTORw8 Overpowering a boat may causesevere instability. Do not install an out-board motor with more horsepowerthan t
EEMU00030CONTENTS123456GENERAL INFORMATIONBASIC COMPONENTSOPERATIONMAINTENANCETROUBLE RECOVERYINDEXREAD THIS OWNER’S MANUAL CAREFULLYBEFORE OPERATING
E3-3Mount the outboard motor on the center line(keel line) of the boat, and ensure that theboat itself is well balanced. Otherwise, theboat will be ha
E3-4EMU13010Points to note on Sailboats (for FT9.9)When mounting the outboard motor on themotor bracket of a sailboat, check the fol-lowing points:8 W
E3-5EMU13180CLAMPING THE OUTBOARDMOTOR1) Place the outboard on the transom sothat it is positioned as close to the cen-ter as possible. Tighten the tr
E3-6EMU18760CHARGING BATTERYFor T9.9MHIf an accessory battery charging is required,proceed the following steps for connectingthe charging circuit to t
E3-7EMU02240BREAKING IN (RUNNING IN)ENGINEYour new engine requires a period of break-in (running-in) to allow mating surfaces ofmoving parts to wear-i
E3-8EMU02040PRE-OPERATION CHECKSwIf any item in the pre-operation check isnot working properly, have it inspectedand repaired before operating the out
E3-9EMU02090Controls8 Check throttle, shift, and steering forproper operation before starting theengine.8 The controls should work smoothly, with-out
E3-10902055EMU02020FILLING FUEL1) Remove the fuel tank cap.2) Fill the fuel tank carefully.3) Close the cap securely after refueling.Wipe up any spill
E3-11902053001525902061001671EMU14610STARTING ENGINEw8 Before starting the engine, make surethat the boat is tightly moored and thatyou can steer clea
E3-12NN001139503016EMU14970PROCEDURE FOR TILLER CON-TROL MODEL4) Place the gear-shift lever in the neutralposition.NOTE:The start-in-gear protection d
E123456EMU00040Chapter 1GENERALINFORMATIONIDENTIFICATION NUMBERS RECORD 1-1Outboard motor serial number...1-1Key number ...
E3-13209015EMU09140Manual Start Model7) Pull the starter handle slowly until youfeel resistance. Then, give a strong pullstraight out to crank and sta
E3-14N701015000293EMU02470PROCEDURE FOR REMOTE CON-TROL MODEL4) Place the remote control lever in theNeutral position.NOTE:The start-in-gear protectio
E3-15EMU09490Electric Start Model7) Turn the main switch to “START”, andhold it for a maximum of 5 seconds.8) Immediately after the engine starts,rele
E3-16EMU18830WARMING UP ENGINE1) After starting the engine, allow it to idlefor 3 minutes to warm up. Failure to doso will shorten engine life.2) Be s
E3-17EMU18850CHECKPOINTS AFTERSTARTING ENGINE8 Check for a steady flow of water from thecooling water pilot hole.8 Check that the oil pressure indicat
E3-18EMU02610SHIFTINGwBefore shifting, make sure there are noswimmers or obstacles in the water nearyou.cCTo change the shifting position from for-war
E3-19503012402053RNNRNR701044EMU13260REVERSEwWhen operating in Reverse, go slowly.Do not open the throttle more than half.Otherwise, the boat may beco
E3-20001533ONSTARTOFF701023001526902052EMU02730STOPPING ENGINELet it cool off for a few minutes at idle or lowspeed first. Stopping the engine immedia
E3-21000910qEMU14120TRIMMING OUTBOARDMOTORThe trim angle of the outboard motor helpsdetermine the position of the bow of theboat in the water. The cor
E3-22ADJUSTING TRIM ANGLEEMU09510Manual tilt modelThere are 4 or 5 holes provided in theclamp bracket to adjust the outboard motortrim angle.1) Stop t
E1-1EMU00050IDENTIFICATION NUMBERSRECORDEMU00070OUTBOARD MOTOR SERIAL NUM-BERThe outboard motor serial number isstamped on the label attached to the p
E3-23EMU19160Trim angle settings and boat handlingWhen the boat is on plane, a bow-up atti-tude results in less drag, greater stabilityand efficiency.
E3-24105031EMU02850TILTING UP/DOWNIf the engine will be stopped for some time,or if the boat is moored in shallows, theengine should be tilted up to p
E3-25001526001528001529001560EMU02860PROCEDURE FOR TILTING UPManual tilt model1) Remove the fuel-line connection fromthe motor. (If the fuel connector
E3-26000832EMU13700CRUISING IN SHALLOWWATERManual tilt modelThe outboard motor can be tilted up partial-ly to allow operation in shallow water.w8 Plac
E3-27N5N001528001562402053EMU03130PROCEDURE1) Place the gear shift lever in the neutralposition.2) Push the tilt-lock lever down to therelease positio
E3-28EMU03160CRUISING IN OTHER CONDI-TIONSCRUISING IN SALT WATERAfter operating in salt water, wash out thecooling-water passages with fresh water top
E-MEMO- 6G8-9-1M-3 4/4/03 11:35 AM Page 30
EMU03170Chapter 4MAINTENANCESPECIFICATIONS...4-1TRANSPORTING AND STORING OUTBOARD MOTOR ...4
E4-1EMU18700¯SPECIFICATIONSModelUnit F9.9MHCItemDIMENSIONSOverall length mm (in.)Overall width mm (in.)Overall height S/L/X mm (in.)Transom height S/L
E4-2F9.9ERC T9.9EHC T9.9ERC575 (22.64)325 (12.8)— / 1,131 (44.53) / — — / 559 (22) / — — / 44.5 (98) / — 4,500–5,5007.3 (9.9) @ 5,000900–1,0004-stroke
E1-2001537qwEMISSION CONTROL INFORMATIONENGINE FAMILY : THIS ENGINE CONFORMS TO 2001 U.S. EPA REGULATIONS FOR MARINE SI ENGINES.THIS ENGINE CONFORMS T
E4-3EMU13690TRANSPORTING AND STOR-ING OUTBOARD MOTORwLeaking fuel is a fire hazard. When trans-porting and storing the outboard motor,close the air ve
E4-4001515qewEMU03300STORING OUTBOARD MOTORWhen storing your Yamaha outboard forprolonged periods of time, (2 months orlonger), several important proc
E4-5EMU03380Flushing Cooling System and FoggingEngineCooling system flushing is essential to pre-vent the cooling system from clogging upwith salt, sa
E4-66) Remove the motor from the water tank.7) Install the top cowling.1 Water surface2 Lowest water level605016qw000353qEMU034208 Flushing with the F
E4-7EMU03490Lubrication1) Remove the spark plug(s). Spray aYamaha “Stor-Rite Engine Fogging Oil”into each cylinder for 10 seconds.Grease the spark plu
E4-8EMU15450Battery CarewBattery electrolyte is poisonous anddangerous, causing severe burns, etc. Itcontains sulfuric acid. Avoid contactwith skin, e
E4-9EMU15690PERIODIC MAINTENANCEwBe sure to turn off the engine when youperform maintenance unless otherwisespecified. If the owner is not familiarwit
E4-10EMU19351MAINTENANCE CHARTFrequency of maintenance operations may be adjusted according to the operating condi-tions, but the following table give
E4-11EMU03660GREASINGYamaha marine grease(Water resistant grease)001563500 hours 1000 hours(2.5 years) (5 years)Timing belt Replacement1ItemActionsEve
E4-12EMU12020CLEANING AND ADJUSTING SPARKPLUGwWhen removing or installing a sparkplug, be careful not to damage the insu-lator. A damaged insulator co
E1-3000852qEMU13890STAR LABELSYour outboard motor is labeled with aCalifornia Air Resources Board (CARB) starlabel. See below for a description of you
E4-13When fitting the plug, always clean the gas-ket surface and use a new gasket. Wipe offany dirt from the threads and screw in thespark plug to the
E4-14001541EMU15090CHECKING FUEL SYSTEMwGasoline (petrol) and its vapors are high-ly flammable and explosive. Keep awayfrom sparks, cigarettes, flames
E4-15001523EMU03700INSPECTING FUEL FILTERwGasoline (petrol) is highly flammable,and its vapors are flammable and explo-sive.8 If you have any question
E4-16EMU09912INSPECTING IDLING SPEEDw8 Do not touch or remove electricalparts when starting or during opera-tion.8 Keep hands, hair and clothes awayfr
E4-17EMU18840CHANGING ENGINE OILw8 Avoid draining the engine oil immedi-ately after stopping the engine. The oilis hot and should be handled with care
E4-18NOTE:If a torque wrench is not available when youare installing the drain screw, finger tightenthe screw just until the gasket comes intocontact
E4-19NOTE:8 For more information on the disposal ofused oil, consult your Yamaha dealer.8 Change the oil more often when operat-ing the engine under a
E4-20210012602051602054EMU03880CHECKING PROPELLERwYou could be seriously injured if theengine accidentally starts while you arenear the propeller.8 Be
E4-21001559tewqy001549qtwryeF9.9T9.9EMU09971Removing the Propeller1) Straighten the cotter-pin 1 and pull itout using a pair of pliers.2) Remove the p
E4-224) Align the propeller nut with the propellershaft hole. Insert a new cotter pin in thehole and bend the cotter pin ends.NOTE:When the propeller
E1-4EMU09170QSAFETY INFORMATION8 Before mounting or operating the out-board motor, read this entire manual.Reading it should give you an under-standin
E4-233) Remove the gear oil drain screw 1.4) Remove the oil level plug 2 to allowthe oil to drain completely.cCInspect the used oil after it has beend
E4-24902054EMU15100CLEANING FUEL TANKwGasoline (petrol) is highly flammable,and its vapors are flammable and explo-sive.8 If you have any question abo
E4-25604034EMU14622INSPECTING AND REPLACINGANODE(S)Yamaha outboard motors are protectedfrom corrosion by sacrificial anodes. Inspectthe external anode
E4-26EMU04041CHECKING BATTERY (for Electricstart models)wBattery electrolytic fluid is dangerous; itcontains sulfuric acid and therefore ispoisonous a
E4-27cC8 A poorly maintained battery will quick-ly deteriorate.8 Ordinary tap-water contains mineralsharmful to a battery, and should not beused for t
E4-28cC8 Make sure the main switch (on applica-ble models) is “OFF” before workingon the battery.8 Reversal of the battery leads will dam-age the rect
E4-29EMU16350CHECKING TOP COWLINGCheck the fitting of the top cowling by push-ing it with both hands.If the fitting is loose have it repaired by aYama
EMU04140Chapter 5TROUBLE RECOVERYTROUBLESHOOTING ...5-1TEMPORARY ACTION IN EMERGENCY ...
E5-1EMU17520TROUBLESHOOTINGA problem in the fuel, compression, or ignition systems can cause poor starting, loss ofpower, or other problems. The troub
E5-2C. Engine idlesirregularly or stalls.Trouble Possible Cause Remedy8. Poor connections or damaged ignitionwiring.9. Specified engine oil not used.1
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