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OWNER’S MANUAL

F6C
F8C
T8C

LIT-18626-05-31

U.S.A.Edition

Summary of Contents for T8C

Page 1: ...OWNER S MANUAL F6C F8C T8C LIT 18626 05 31 U S A Edition...

Page 2: ......

Page 3: ...CAUTION indicates special precau tions that must be taken to avoid damage to the outboard motor NOTE A NOTE provides key information to make procedures easier or clearer Yamaha continually seeks adva...

Page 4: ...E EMU00003 CONTENTS READ THIS OWNER S MANUAL CAREFULLY BEFORE OPERATING YOUR OUTBOARD MOTOR GENERAL INFORMATION 1 BASIC COMPONENTS 2 OPERATION 3 MAINTENANCE 4 TROUBLE RECOVERY 5 INDEX 6...

Page 5: ...r labels 1 3 SAFETY INFORMATION 1 4 IMPORTANT LABELS 1 6 Warning labels 1 6 Caution labels 1 6 BASIC BOATING RULES Rules of the road 1 7 Steering and sailing rules and sound signals 1 7 Rules when enc...

Page 6: ...umber in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is stolen 1 Outboard motor serial number EMU00008 KEY NUMBER If...

Page 7: ...regulations for marine SI engines See the label affixed to your engine for details Approval label of Emission control certif icate This label is attached to the bottom cowling 1 Emission control infor...

Page 8: ...tional carbureted two stroke engines These engines are equiva lent to the U S EPA s 2006 standards for marine engines Two Stars Very Low Emission The two star label identifies engines that meet the Ai...

Page 9: ...ly Make sure there are no gas fumes or leaking fuel before starting the engine This product emits exhaust gases which contain carbon monoxide a colorless odorless gas which may cause brain damage or d...

Page 10: ...rganizations includ ing the following United States Coast Guard Consumer Affairs Staff G BC Office of Boating Public and Consumer Affairs U S Coast Guard Headquarters Washington D C 20593 0001 Boating...

Page 11: ...1 6 E EMU00014 IMPORTANT LABELS WARNING LABELS 1 2 CAUTION LABELS 3...

Page 12: ...ened ves sel 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 excep...

Page 13: ...er 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 vessel on y...

Page 14: ...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...

Page 15: ...1 10 E Remember markings may vary by geo graphic location Always consult local boat ing authorities before driving your boat in unfamiliar waters...

Page 16: ...tely with dry rags Do not overfill the fuel tank Tighten the filler cap securely after re fueling If you should swallow some gasoline inhale a lot of gasoline vapor or get gasoline in your eyes get im...

Page 17: ...l and that containing meth anol Gasohol containing ethanol can be used if ethanol content does not exceed 10 and the fuel meets minimum octane ratings Gasohol containing methanol is not recommended by...

Page 18: ...ended engine oil 4 stroke motor oil with a combination of cor responding SAE and API as shown in the chart CAUTION All 4 stroke engines are shipped from the factory without engine oil Engine oil quant...

Page 19: ...a battery which meets the following specifications EMU01859 EMU01783 CAUTION A battery cannot be connected to models that do not have a rectifier or Rectifier Regulator Models without a rectifier or...

Page 20: ...e For a greater operat ing load a smaller pitch propeller is more suitable as it enables the correct engine speed to be maintained Conversely a larger pitch propeller is more suitable for a smaller op...

Page 21: ...ROPEL LER for instructions on propeller removal and installation EMU01209 START IN GEAR PROTECTION Yamaha outboard motors or Yamaha approved remote control units are equipped with start in gear protec...

Page 22: ...1 17 E MEMO...

Page 23: ...ontrol model 2 4 Multifunction tiller handle 2 4 Remote control 2 8 Steering friction adjusting lever 2 13 Trim angle adjusting rod 2 13 Power trim tilt switch 2 14 Tilt lock mechanism for manual tilt...

Page 24: ...ing rod 8 Clamp bracket 9 Recoil starter handle 0 Warning indicator A Engine stop lanyard switch Engine stop button B Gear shift lever C Tiller handle D Steering friction adjusting lever E Tilt lock l...

Page 25: ...itch 0 Recoil starter handle A Warning indicator B Starter button C Engine stop layard switch Engine stop button D Gear shift lever E Tiller handle F Steering friction adjusting lever G Tilt lock leve...

Page 26: ...r vent screw if equipped EMU00042 Fuel Hose Joint This connector is provided for connecting or disconnecting fuel hose EMU01531 Fuel Meter This meter is on the fuel tank cap It shows the approximate a...

Page 27: ...rt the engine EMU00059 RECOIL STARTER HANDLE If equipped Pull the handle gently until resistance is felt Then vigorously pull the handle straight out to crank the engine to start it EMU00060 STARTER B...

Page 28: ...yard switch Engine stop but ton If equipped 7 Main switch if equipped 8 Power tilt switch if equipped EMU00079 Tiller handle Moving the tiller handle sideways to adjust the steering direction EMU00080...

Page 29: ...onomy for the desired operation 1 Throttle indicator EMU01157 Throttle Friction Adjusting Knob A friction device in the tiller handle provides adjustable resistance to movement of the throttle grip an...

Page 30: ...d to a secure place on your clothing your arm or leg while operating Do not attach the lanyard to clothing that could tear loose Do not route the lanyard in such a way that it could become entangled p...

Page 31: ...ased the motor will stop in its current position NOTE Refer to the section TILTING UP DOWN for instructions on usage EMU00094 REMOTE CONTROL Both the shifter and the throttle are actuated by the remot...

Page 32: ...tinue 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 acceler ate 1 Neutral 2 Forward 3 Reverse 4 Shift 5...

Page 33: ...lever is in Neutral The remote control lever will operate only when the neutral throttle lever is in the closed position 1 Fully open 2 Fully closed EMU00101 Main switch The main switch controls the i...

Page 34: ...elm the lanyard will pull out the lock plate stopping ignition to the engine This will prevent the boat from run ning away under power WARNING Attach the lanyard to a secure place on your clothing you...

Page 35: ...on TILTING UP DOWN for instructions on usage EMU01155 Throttle Friction Adjusting Screw A friction device in the remote control box provides adjustable resistance to move ment of the remote control le...

Page 36: ...o not overtighten the friction adjusting lever If there is too much resistance it may be difficult to steer which could result in an accident Resistance Lever Increase Turn to port Decrease Turn to st...

Page 37: ...cket only when the boat is at a complete stop with the engine off Attempting to use the cowl ing mounted power tilt switch while the boat is moving could increase the risk of falling overboard and cou...

Page 38: ...MU00156 TILT SUPPORT BAR The tilt support bar 1 keeps the outboard motor in the tilted up position EMU01348 POWER TILT UNIT This unit tilts the motor up and down and is controlled via the power tilt s...

Page 39: ...oving the lever down ward EMU01701 FLUSHING DEVICE This device 1 is used to clean the cooling water passages of the motor using a garden hose and tap water NOTE Refer to CLEANING COOLING WATER PASSAGE...

Page 40: ...If the warning system has been activated stop the engine as soon as it is safe to do so Check oil level and add oil as needed If the oil level is correct consult your Yamaha dealer CAUTION Do not cont...

Page 41: ...ENGINE 3 15 CHECKING POINTS AFTER STARTING ENGINE 3 15 SHIFTING 3 16 Forward 3 16 Reverse 3 17 STOPPING ENGINE 3 18 TRIMMING OUTBOARD MOTOR 3 19 Adjusting trim angle 3 20 TILTING UP DOWN 3 24 Procedur...

Page 42: ...rborne water spray while the boat is cruising Severe engine damage may result if the motor is operated continuously in the presence of airborne water spray NOTE During water testing check the buoyancy...

Page 43: ...NING Improper mounting of the outboard motor could result in hazardous condi tions such as poor handling loss of con trol or fire hazards Observe the following For permanently mounted models your deal...

Page 44: ...eed will rise abnormally and cause the engine to overheat If the mounting height is too low the water resistance will increase and thereby reduce engine effi ciency Mount the engine so that the anti c...

Page 45: ...y Occasionally check the screws for tight ness during operation 2 An engine restraint cable or chain should be used Attach one end to the engine restraint cable attachment point and the other to a sec...

Page 46: ...ne life or even severe engine damage Break in running in time 10 hours EMU01367 Run the engine under load in gear with a propeller installed as follows 1 For the first hour of operation Run the engine...

Page 47: ...engine damage can occur EMU00206 Fuel Check to be sure you have plenty of fuel for your trip Make sure there are no fuel leaks or gas oline fumes Check fuel line connections to be sure they are tight...

Page 48: ...gine mounting Look for loose or damaged fasteners Check the propeller for damage EMU01436 CHECKING THE ENGINE OIL LEVEL 1 Put the outboard motor in an upright position not tilted 2 Pull out the oil di...

Page 49: ...fuels As gasoline has changed the amount of additives such as aromatics and oxygenates has increased These additives are impor tant for the engines in passenger cars but they can have detrimental effe...

Page 50: ...ct emits exhaust gases which contain carbon monoxide a col orless odorless gas which may cause brain damage or death when inhaled Symptoms include nausea dizziness and drowsiness Keep cockpit and cabi...

Page 51: ...p switch WARNING Attach the engine stop switch lanyard to a secure place on your clothing your arm or leg while operating Do not attach the lanyard to clothing that could tear loose Do not route the l...

Page 52: ...straight out to crank and start the engine Repeat if necessary 9 After the engine starts return the starter handle slowly to the original position before releasing it NOTE If the engine doesn t start...

Page 53: ...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...

Page 54: ...ur clothing or your arm or leg Then install the lock plate on the other end of the lanyard in the engine stop switch WARNING Attach the engine stop switch lanyard to a secure place on your clothing yo...

Page 55: ...h returns to its home position when you release your hand Therefore keep the switch pressed in NOTE It is not necessary to use the choke when the engine is warm Set the choke knob to the home position...

Page 56: ...mately 30 seconds after starting Then follow the standard instructions for warming up the engine EMU01751 CHECKING POINTS AFTER STARTING ENGINE Check for a steady flow of water from the cooling water...

Page 57: ...a close the throttle first so that the engine idles or runs at low speeds EMU00265 FORWARD Tiller control model 1 Place the throttle control grip in the fully closed position 2 Turn the gear shift lev...

Page 58: ...ace the throttle control grip in the fully closed position for Tiller control model 2 Check that the tilt lock lever for Manual tilt model is in the locked position Tiller control model 3 Turn the gea...

Page 59: ...the main switch to OFF 2 If the fuel joints are provided disconnect the fuel line from the motor after stop ping the engine 3 Tighten the air vent screw on the fuel tank cap after stopping the engine...

Page 60: ...ne and propeller Correct trim is also affected by variables such as the load in the boat sea conditions and running speed WARNING Excessive trim for the operating condi tions either trim up or trim do...

Page 61: ...ove the rod toward the transom Make test runs with the trim set to different angles to find the position that works best for your boat and operating conditions WARNING Stop the engine before adjusting...

Page 62: ...clamp bracket Use caution when trying a trim posi tion for the first time Increase speed gradually and watch for any signs of instability or control problems Improper trim angle can cause loss of con...

Page 63: ...m operating angle when trimming the outboard motor using the power tilt system To raise the bow trim out tilt the engine up To lower the bow trim in tilt the engine down Make test runs with the trim s...

Page 64: ...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...

Page 65: ...tilt the motor while the engine is running Severe damage from over heating can result Do not tilt up the engine by pushing the steering handle as this could break the handle WARNING Be sure all people...

Page 66: ...n the release position 4 Hold the rear of the top cowling with one hand and fully tilt the engine up 5 The tilt support bar turns to the locked position automatically EMU00300 PROCEDURE FOR TILTING DO...

Page 67: ...3 26 E EMU01573 PROCEDURE FOR TILTING UP Power tilt models 1 Disconnect the fuel line or close the fuel cock 2 Push the power tilt switch UP until the outboard has tilted up completely...

Page 68: ...fall back down suddenly if oil in the power tilt unit should lose pressure Never operate the engine while it is supported by the tilt support knob EMU01313 PROCEDURE FOR TILTING DOWN Power tilt model...

Page 69: ...being used Hitting an underwater obstacle could cause the engine to lift out of the water resulting in loss of control Do not rotate the engine 180 and operate the boat in reverse Place the gear shif...

Page 70: ...bar will lock automatically support ing the engine in a partially raised position NOTE This motor has 2 positions for shallow water cruising RETURNING TO ORIGINAL POSITION 1 Place the tilt lock lever...

Page 71: ...hallow water cruising Return the engine to its normal posi tion as soon as the boat is back in deeper water CAUTION Do not tilt up the outboard motor so that the cooling water inlet of the lower unit...

Page 72: ...3 31 E 2 Slightly tilt up the engine using the power tilt switch...

Page 73: ...esh water to prevent them from becoming clogged up with salt deposits NOTE Refer to cooling system flushing instructions in TRANSPORTING AND STORING OUT BOARD MOTOR CRUISING IN TURBID WATER It is stro...

Page 74: ...3 33 E MEMO...

Page 75: ...ng fuel system 4 15 Inspecting fuel filter 4 16 Inspecting idling speed 4 17 Changing engine oil 4 18 Replacing fuse 4 20 Checking wiring and connectors 4 20 Exhaust leakage 4 20 Water leakage 4 20 Ch...

Page 76: ...010 Battery Min cold cranking amps CCA SAE amps at 18 C 0 4 F Min marine cranking amps MCA ABYC amps at 0 C 32 F Min reserve capacity RC SAE minutes Alternator output V A W 12 80 Starting carburation...

Page 77: ...start 0 15 0 20 0 006 0 008 0 15 0 20 0 006 0 008 0 15 0 20 0 006 0 008 0 20 0 25 0 008 0 010 0 20 0 25 0 008 0 010 0 20 0 25 0 008 0 010 245 245 323 323 52 52 12 80 12 6 12 6 Choke start Choke start...

Page 78: ...n cold cranking amps CCA SAE amps at 18 C 0 4 F 245 Min marine cranking amps MCA ABYC amps at 0 C 32 F 323 Min reserve capacity RC SAE minutes 52 Alternator output V A W 12 6 Starting carburation syst...

Page 79: ...ult your Yamaha dealer WARNING Never get under the lower unit while it is tilted even if a motor support bar is used Severe injury could occur if the outboard accidentally falls USE CARE when transpor...

Page 80: ...horized Yamaha dealer prior to stor age However the following procedures can be performed by you the owner with a mini mum of tools CAUTION Keep the engine in one of the posi tions shown when storing...

Page 81: ...c if the fuel system is to be drained instead EMU00338 Flushing Cooling System and Fogging Engine Cooling system flushing is essential to pre vent the cooling system from clogging up with salt sand or...

Page 82: ...water tank 3 Fill the tank with fresh water to above the level of the anti cavitation plate 4 Run the engine at a fast idle for 10 15 minutes 5 Just prior to turning off the engine quickly spray Yama...

Page 83: ...rings 3 Change the gear case oil Refer to CHANGING GEAR OIL Inspect the oil for the presence of water which indi cates a leaky seal Seal replacement should be performed by an authorized Yamaha dealers...

Page 84: ...en charging or using in a closed space Always wear eye protection when working near batteries KEEP OUT OF REACH OF CHILDREN Batteries vary among manufacturers There fore the following procedures may n...

Page 85: ...a Yamaha dealer for owners who have the mechanical skills tools and other equipment necessary to perform mainte nance not covered by this owner s manual EMU00356 REPLACEMENT PARTS If replacement part...

Page 86: ...ment replacement Greasing points Greasing Gear oil Change Fuel system Inspection Fuel filter disposable Inspection replacement Fuel tank Yamaha portable tank Cleaning Idling speed carburetor models In...

Page 87: ...4 12 E EMU00366 GREASING Yamaha marine grease Water resistant grease...

Page 88: ...e air leak or carburetion problem in that cylinder Do not attempt to diagnose any problems your self Instead take the outboard motor to a Yamaha dealer You should periodically remove and inspect the s...

Page 89: ...able when you are fitting a spark plug a good estimate of the correct torque is 1 4 to 1 2 a turn past finger tight Have the spark plug adjusted to the correct torque as soon as possible with a torque...

Page 90: ...roblem is found it should be repaired immediately by Yamaha dealer or other qualified mechanic Checkpoints Fuel system parts leakage Fuel hose joint leakage Fuel hose cracks or other damage Fuel conne...

Page 91: ...arks 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...

Page 92: ...ith 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 If the outboard motor is mou...

Page 93: ...an upright position not tilted when checking and changing the engine oil If the oil level is above the upper level mark drain until the level meets the specified capacity Overfilling the oil may caus...

Page 94: ...amp does not turn off or if there are oil leaks stop the engine and find the cause Continued operation with a prob lem could cause severe engine damage If the problem cannot be found and cor rected co...

Page 95: ...TE If the new fuse blows again immediately consult a Yamaha dealer 1 Fuse box 2 Fuse 10 A 3 Spare fuse 10 A 4 Fuse puller EMU00383 CHECKING WIRING AND CONNECTORS 1 Check that each grounding wire is pr...

Page 96: ...unit for any sign of oil leaks 2 Operate each of the power tilt switches on remote control and engine bottom cowling if equipped to check that all switches work 3 Tilt up the motor and check that the...

Page 97: ...n yard from the engine stop switch Turn off the battery cut off switch if your boat has one Do not use your hand to hold the pro peller when loosening or tightening the propeller nut Put a wood block...

Page 98: ...ther wise the propeller could come off dur ing operation and be lost 1 Apply Yamaha Marine grease or Corro sion resistant grease to the propeller shaft 2 Install the spacer washer and propeller on the...

Page 99: ...so that the oil drain plug is at the lowest point possible 2 Place a suitable container under the gear case 3 Remove the oil drain plug 1 NOTE The oil drain plug is magnetic Remove all metal particle...

Page 100: ...or pressur ized filling device inject the gear oil into the oil drain plug hole 6 When the oil begins to flow out of the oil level plug hole insert and tighten the oil level plug 7 Insert and tighten...

Page 101: ...carefully Improper assembly can result in a fuel leak which could result in a fire or explosion hazard Dispose of old gasoline petrol according to local regulations 1 Empty the fuel tank into an appro...

Page 102: ...s periodically Remove scales from the surfaces of the anodes Consult a Yamaha dealer for replacement of external anodes CAUTION Do not paint anodes as this would ren der them ineffective NOTE Inspect...

Page 103: ...ical attention Antidote INTERNAL Drink large quantities of water or milk followed by milk of magnesia beaten egg or vegetable oil Get immediate medical attention Batteries also generate explosive hydr...

Page 104: ...harge Installing a voltmeter will help you monitor your battery If you will not use the boat for a month or more remove the battery from the boat and store it in a cool dark place Completely recharge...

Page 105: ...lead first when installing the battery and disconnect the RED lead last when removing it Otherwise the electrical system can be damaged The electrical contacts of the battery and cables must be clean...

Page 106: ...CKING BOLTS AND NUTS 1 Check that bolts securing the cylinder head and engine and the nut securing the flywheel are tightened with their specified tightening torque 2 Check the tightening torque of ot...

Page 107: ...t the garden hose 3 4 When flushing is complete reinstall the garden hose connector 2 on the fitting 1 on the bottom cowling Tighten the connector securely CAUTION Do not leave the garden hose connect...

Page 108: ...OTOR EMU00412 Checking Painted Surface of Motor Check the motor for scratches nicks or flak ing paint Areas with damaged paint are more likely to corrode If necessary clean and paint the areas A touch...

Page 109: ...ter 5 TROUBLE RECOVERY TROUBLESHOOTING 5 1 TEMPORARY ACTION IN EMERGENCY 5 4 Impact damage 5 4 Power tilt will not operate 5 4 Starter will not operate 5 5 Engine fails to operate 5 8 Treatment of sub...

Page 110: ...d repair Replace fuse with one of correct amperage 4 Starter components faulty 4 Have serviced by a Yamaha dealer 5 Shift lever in gear 5 Shift to neutral B Engine will not start Starter operates 1 Fu...

Page 111: ...a Yamaha dealer 11 Carburetor adjustments incorrect 11 Have serviced by a Yamaha dealer 12 Fuel pump damaged 12 Have serviced by a Yamaha dealer 13 Air vent screw on the fuel tank closed 13 Open the a...

Page 112: ...ct and adjust as specified 13 Poor connections or damaged ignition wiring 13 Check wires for wear or breaks Tighten all loose connections Replace worn or broken wires 14 Failed ignition parts 14 Have...

Page 113: ...mage Also inspect the boat for damage 3 Whether damage is found or not return to the nearest harbor slowly and care fully 4 Have a Yamaha dealer inspect the out board motor before operating it again E...

Page 114: ...he boat could unexpectedly start to move which could result in an accident Be sure no one is standing behind you when pulling the starter rope It could whip behind you and injure someone An unguarded...

Page 115: ...le from the starter if equipped 3 Remove the starter flywheel cover after removing the bolt s 4 Prepare the engine for starting Refer to STARTING ENGINE for details Be sure the engine is in Neutral an...

Page 116: ...rt the knotted end of the emergency starter rope into the notch in the fly wheel rotor and wind the rope 1 or 2 turns clockwise 6 Give a strong pull straight out to crank and start the engine Repeat i...

Page 117: ...again without getting repairs When using the emergency circuit the engine control systems will not make the proper adjustments for operating conditions Operate only at low speed less than one quarter...

Page 118: ...ark plug holes downward to allow any water mud or contaminants to drain 3 Drain the fuel from the carburetor fuel filter and fuel line Drain the engine oil completely 4 Fill the sump with the fresh en...

Page 119: ...E 6 EMU00450 Chapter 6 INDEX INDEX 6 1...

Page 120: ...g the battery 4 30 Controls 3 7 Crossing 1 8 Cruising in other conditions 3 32 Cruising in salt water 3 32 Cruising in shallow water 3 28 3 30 Cruising in turbid water 3 32 D Disconnecting the battery...

Page 121: ...Returning to original position 3 29 Reverse 3 17 Ring free fuel additive 3 8 Rules when encountering vessels 1 8 S Safety information 1 4 Sailing vessel right of way 1 9 Shifting 3 16 Specifications...

Page 122: ...istration records are checked 2 Read the Limited Warranty statement which follows these instructions This warranty applies to Yamaha outboard motors sold in the United States whether purchased sepa ra...

Page 123: ...able in one country may not be sold or serviced in the other 6 If you need any additional information about your Yamaha or warranty coverage which your dealer cannot provide please contact us directly...

Page 124: ...m and Tilt Assembly WARRANTY REGISTRATION To be eligible for warranty coverage the outboard motor must be registered with Yamaha Motor Corpora tion U S A Warranty registration can be accomplished by a...

Page 125: ...amaha Outboard Motor Dealer and requesting the dealer to submit a change of registration to Yamaha Motor Corporation U S A within ten 10 days of the transfer YAMAHA MOTOR CORPORATION U S A MAKES NO OT...

Page 126: ...receive service If you need more information about your warranty coverage or your Yamaha outside the U S A or Canada please contact an authorized Yamaha dealer in your country 2 Keep a copy of your s...

Page 127: ...March 2003 3 0 1 CR Printed in Japan 68T 28199 15 F6AMH F8CMH FT8DEHP FT8DWH FT8DEP E YAMAHA MOTOR CORPORATION USA Printed on recycled paper...

Page 128: ...iqu e l acheteur au d tail OUTBOARD MOTOR MODEL AND SERIAL NUMBER From I D label on clamp bracket MOD LE ET NO DE S RIE DU MOTEUR HORS BORD sur l tiquette d identification de la presse de fixation For...

Page 129: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT...

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