Yamaha F6D Owner'S Manual Download Page 6

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Table of contents

models) ......................................... 78

Connecting the battery..................... 78
Disconnecting the battery ................ 79

Trouble Recovery ............................ 80

Troubleshooting ............................ 80
Temporary action in emergency ... 83

Impact damage ................................  83
Replacing fuse .................................  83
Power tilt will not operate.................  84
Starter will not operate .....................  84
Emergency starting engine ..............  85

Engine fails to operate .................. 86

Emergency engine operation ........... 86

Treatment of submerged motor .... 86

INDEX ............................................... 88

U6FW76E0.book Page 3 Tuesday, November 23, 2021 7:37 AM

Summary of Contents for F6D

Page 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL F6D F8F FT8G 6FW 28199 76 E0 U6FW76E0 book Page 1 Tuesday November 23 2021 7 37 AM ...

Page 2: ...arefully before operating this outboard motor Keep this manual onboard in a waterproof bag when boating This manual should stay with the outboard motor if it is sold U6FW76E0 book Page 1 Tuesday November 23 2021 7 37 AM ...

Page 3: ...our machine and this manual If there is any question concerning this manual please consult your Yamaha dealer To ensure long product life Yamaha recom mends that you use the product and perform the specified periodic inspections and main tenance by correctly following the instruc tions in the owner s manual Any damage resulting from neglect of these instructions is not covered by warranty Some cou...

Page 4: ...ting 12 Mounting outboard motor 13 Remote control requirements 13 Battery requirements 13 Battery specifications 13 To use the battery 13 Propeller selection 14 Start in gear protection 14 Engine oil requirements 14 Fuel requirements 15 Gasoline 15 Muddy or acidic water 16 Anti fouling paint 16 Outboard motor disposal requirements 16 Emergency equipment 16 Components 17 Components diagram 17 Fuel ...

Page 5: ...tart and electric start models 46 Checks after engine warm up 46 Shifting 46 Stop switches 46 Shifting 46 Stopping boat 48 Stopping engine 48 Procedure 48 Procedure 49 Trimming outboard motor 49 Adjusting trim angle for manual tilt models 50 Adjusting trim angle power tilt models 50 Adjusting boat trim 51 Tilting up and down 52 Procedure for tilting up manual tilt models 52 Procedure for tilting u...

Page 6: ...ear oil 76 Inspecting and replacing anode s 77 Checking battery for electric start models 78 Connecting the battery 78 Disconnecting the battery 79 Trouble Recovery 80 Troubleshooting 80 Temporary action in emergency 83 Impact damage 83 Replacing fuse 83 Power tilt will not operate 84 Starter will not operate 84 Emergency starting engine 85 Engine fails to operate 86 Emergency engine operation 86 ...

Page 7: ... or electrocution EMU34791 Power tilt Body parts can be crushed between the mo tor and the clamp bracket when the motor is trimmed or tilted Keep body parts out of this area at all times Be sure no one is in this area before operating the power tilt mechanism The power tilt switches operate even when the main switch is off Keep people be away from the switches whenever working around the motor Nev...

Page 8: ...uld follow when boating EMU33711 Alcohol and drugs Never operate after drinking alcohol or taking drugs Intoxication is one of the most com mon factors contributing to boating fatalities EMU40281 Personal flotation devices PFDs Have an approved PFD on board for every occupant Yamaha recommends that you must wear a PFD whenever boating At a minimum children and non swimmers should always wear PFDs ...

Page 9: ...ision Take early action to avoid collisions Re member boats do not have brakes and stopping the engine or reducing throttle can reduce the ability to steer If you are not sure that you can stop in time before hitting an obstacle apply throttle and turn in an other direction EMU48100 Collisions with floating or submerged objects If the outboard motor hits a floating object or an obstacle in the wat...

Page 10: ... emergency EMU33891 Boating safety publications Be informed about boating safety Additional publications and information can be obtained from many boating organizations EMU33602 Laws and regulations Know the marine laws and regulations where you will be boating and obey them Several sets of rules prevail according to geographic location but all are basically the same as the International Rules of ...

Page 11: ...If a main key switch is equipped with the mo tor the key identification number is stamped on your key as shown in the illustration Re cord this number in the space provided for reference in case you need a new key EMU38984 EC Declaration of Conformity DoC This declaration is included with outboard motors that conform to European regula tions 1 Outboard motor serial number location 1 Outboard motor...

Page 12: ...ing This label is affixed to outboard motors that conform to European regulations CE marking Outboard motors affixed with this CE mark ing conform with the directives of 2006 42 EC 2014 30 EU and 2013 53 EU UKCA marking This product is in compliance with the Recre ational Craft Regulations 2017 Electromag netic Compatibility Regulations 2016 and Supply of Machinery Safety Regulations 2008 1 CE mar...

Page 13: ...nuals supplied with the boat Read all labels on the outboard motor and the boat If you need any additional information contact your Yamaha dealer EMU33836 Warning labels If these labels are damaged or missing contact your Yamaha dealer for replacements F6DMH F6DM F8FMH FT8GMH 1 2 3 U6FW76E0 book Page 7 Tuesday November 23 2021 7 37 AM ...

Page 14: ...General information 8 F8FE FT8GE FT8GEP 1 2 3 U6FW76E0 book Page 8 Tuesday November 23 2021 7 37 AM ...

Page 15: ...ile the engine is running Do not touch or remove electrical parts when starting or during operation 3 EWM01672 Read Owner s Manuals and labels Wear an approved personal flotation de vice PFD Attach engine shut off cord lanyard to your PFD arm or leg so the engine stops if you accidentally leave the helm which could prevent a runaway boat 6EE G2794 40 6EE G2794 50 6EE H1994 40 6EE H1994 50 6EE H199...

Page 16: ...ing Read Owner s Manual Hazard caused by continuous rotation Electrical hazard Remote control lever gear shift lever operat ing direction dual direction Engine start Engine cranking ZMU05696 ZMU05664 ZMU05665 ZMU05666 ZMU05667 ZMU05668 U6FW76E0 book Page 10 Tuesday November 23 2021 7 37 AM ...

Page 17: ...22 0 in F6DM F6DMH F8FE F8FMH Motor transom height X 620 mm 24 4 in FT8GE FT8GMH Dry weight AL S 40 kg 88 lb F6DM F6DMH F8FMH Dry weight AL L 41 kg 90 lb F6DM F6DMH F8FMH 43 kg 95 lb F8FE FT8GMH 44 kg 97 lb FT8GE 49 kg 108 lb FT8GEP Dry weight AL X 44 kg 97 lb FT8GMH 45 kg 99 lb FT8GE Performance Full throttle operating range 5000 6000 r min Rated power 4 4 kW 6 HP F6DM F6DMH 5 9 kW 8 HP F8FE F8FM...

Page 18: ... 4 stroke outboard motor oil Recommended engine oil grade 1 SAE 10W 30 10W 40 5W 30 API SE SF SG SH SJ SL Engine oil quantity 0 8 L 0 85 US qt 0 70 Imp qt Lubrication system Wet sump Recommended gear oil YAMALUBE outboard gear oil or Hypoid gear oil Recommended gear oil grade SAE 90 API GL 4 Gear oil quantity 0 150 L 0 159 US qt 0 132 Imp qt F6DM F6DMH F8FE F8FMH 0 370 L 0 391 US qt 0 326 Imp qt F...

Page 19: ...95 Battery requirements EMU25723 Battery specifications The engine cannot be started if battery volt age is too low EMU36293 Mounting battery Mount the battery holder securely in a dry well ventilated vibration free location in the boat WARNING Do not put flammable items or loose heavy or metal objects in the same compartment as the battery Fire explosion or sparks could result EWM01821 Battery ca...

Page 20: ...the operating range at full throttle with the maximum boat load Generally select a larger pitch propeller for a smaller operating load and a smaller pitch propeller for a heavier load If you carry loads that vary widely select 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 recommende...

Page 21: ...age Use only fresh gasoline that has been stored in clean containers TIP This mark identifies the recommended fuel for this outboard motor as specified by Eu ropean regulation EN228 Check that gasoline nozzle has the same identifier when fueling Recommended engine oil YAMALUBE 4 or 4 stroke outboard motor oil Recommended engine oil grade 1 SAE 10W 30 10W 40 5W 30 API SE SF SG SH SJ SL Recommended ...

Page 22: ...c water Yamaha strongly recommends that you have your dealer install the optional chromium plated water pump kit if you use the outboard motor in muddy or acidic water conditions However depending on the model it might not be required EMU36331 Anti fouling paint 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...

Page 23: ...dels order from dealer F6DMH F6DM F8FMH F8FE 1 8 9 10 2 3 5 6 7 12 11 4 1 Top cowling 2 Clamp bracket 3 Trim rod 4 Anode 5 Drain screw 6 Cooling water inlet 7 Propeller 8 Cowling lock lever 9 Idle hole 10 Anti cavitation plate 11 Remote control box side mount type 12 Fuel tank U6FW76E0 book Page 17 Tuesday November 23 2021 7 37 AM ...

Page 24: ...4 1 Top cowling 2 Clamp bracket 3 Trim rod 4 Anode 5 Drain screw 6 Cooling water inlet 7 Propeller 8 Cowling lock lever 9 Idle hole 10 Anti cavitation plate 11 Remote control box side mount type 12 Fuel tank U6FW76E0 book Page 18 Tuesday November 23 2021 7 37 AM ...

Page 25: ... conform to relevant licensing or approval authority regula tions 1 10 12 11 13 9 13 2 3 4 5 7 6 10 11 12 14 8 1 Manual starter handle 2 Choke knob 3 Flushing device 4 Steering friction adjuster 5 Tilt lock lever 6 Tilt support knob 7 Restraint cable attachment 8 Clamp screw 9 Alert indicator 10 Engine stop button 11 Gear shift lever 12 Throttle friction adjuster 13 Throttle grip 14 Engine shut of...

Page 26: ... the lever forward from the neutral po sition engages forward gear Pulling the lever back from neutral engages reverse The en gine will continue 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 accelerate 1 Fuel joint 2 Fuel tank cap 3 Air vent screw 1 2 3 1 Power tilt switch 2 Remote control lever 3 Neut...

Page 27: ... closed position EMU26222 Choke switch To activate the choke system press in the main switch while the key is turned to the on or start position The choke system will then supply the rich fuel mixture required to start the engine When the key is released the choke will switch off automatically EMU25914 Tiller handle To change direction move the tiller handle to the left or right as necessary EMU25...

Page 28: ...rottle friction adjuster A friction device provides adjustable resis tance to movement of the throttle grip or the remote control lever and can be set accord ing to operator preference To increase resistance turn the adjuster clockwise To decrease resistance turn the adjuster counterclockwise WARNING Do not overtighten the friction adjuster If there is too much resistance it could be difficult to ...

Page 29: ... on your clothing or your arm or leg while operating Do not attach the cord to clothing that could tear loose Do not route the cord where it could become en tangled preventing it from functioning Avoid accidentally pulling the cord during 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 peo ple and ...

Page 30: ...are on and the key can not be removed start With the main switch in the start po sition the starter motor turns to start the en gine When the key is released it returns automatically to the on position EMU26103 Power tilt switch The power tilt system adjusts the outboard motor angle in relation to the transom Push ing the switch up tilts the outboard mo tor up Pressing the switch down tilts the ou...

Page 31: ... in an accident If the resistance does not increase even when the lever is turned to the port side A make sure that the nut is tightened to the specified torque TIP Steering movement is blocked when the adjuster lever is set to the A position Check the tiller handle for smooth move ment when the lever is turned to the star board side B Do not apply lubricants such as grease to the friction areas o...

Page 32: ...ilered in the normal running position use an additional support device to secure it in the tilt position EMU26334 Tilt support bar The tilt support bar keeps the outboard motor in the tilted up position ECM01661 Do not use the tilt support bar when traile ring the boat The outboard motor could shake loose from the tilt support and fall If the motor cannot be trailered in the nor mal running positi...

Page 33: ...o secure the top cowling EMU26464 Flushing device This device is used to clean the cooling water passages of the motor using a garden hose and tap water TIP For details on usage see page 62 EMU26305 Alert indicator If the engine develops a condition which is cause for alert the indicator lights up For de tails on how to read the alert indicator see page 29 1 Power tilt unit 2 Power tilt motor 1 Co...

Page 34: ... Do not continue to run the engine if the low oil pressure alert indicator is on and the engine oil level is lower Serious en gine damage will occur The low oil pressure alert indicator does not indicate the engine oil level Use the oil dipstick to check the oil level For fur ther information see page 35 1 Low oil pressure alert indicator 1 U6FW76E0 book Page 28 Tuesday November 23 2021 7 37 AM ...

Page 35: ...o low the alert de vice will activate The engine speed will automatically de crease to about 2000 3500 r min The low oil pressure alert indicator will light or blink if equipped The buzzer will sound if equipped If the alert system has activated stop the en gine as soon as it is safe to do so Check the oil level and add oil as needed If the oil level is correct consult your Yamaha dealer ZMU07904 ...

Page 36: ...l or fire hazards For permanently mount ed models your dealer or other person experienced in proper rigging should mount the motor EMU34802 Mounting the outboard motor ECM01681 Do not hold the top cowling when mount ing or dismounting the outboard motor The top cowling could come off causing the outboard motor to fall 1 Be sure to mount the outboard motor while the boat is on land If the boat is o...

Page 37: ...e efficiency Mount the outboard motor so that the anti cavitation plate is between the bottom of the boat and a level 25 mm 1 in below it ECM01635 Make sure that the idle hole is high enough to prevent water from entering the engine even if the boat is stationary with the maximum load Incorrect engine height or obstructions to the smooth flow of water such as the design or condition of the boat or...

Page 38: ... of control and serious inju ry Make sure the clamp screws are tightened securely Occasionally check the screws for tightness during operation EWM00643 2 If the restraint cable attachment is equipped on your engine a restraint ca ble or chain should be used Attach one end to the restraint cable attachment and the other to a secure mounting point on the boat Otherwise the engine could be completely...

Page 39: ...models Your new engine requires a period of 10 hours break in to allow mating surfaces of moving parts to wear in evenly TIP Run the engine in the water under load in gear with a propeller installed as follows For 10 hours for breaking in engine avoid extend ed idling rough water and crowded areas 1 For the first hour of operation Run the engine at varying speeds up to 2000 r min or approximately ...

Page 40: ... from sparks cigarettes flames or other sources of ig nition EWM00911 Leaking fuel can result in fire or explosion Check for fuel leakage regularly If any fuel leakage is found the fuel sys tem must be repaired by a qualified me chanic Improper repairs can make the outboard unsafe to operate EMU36453 Check for fuel leaks Check for fuel leaks or gasoline fumes in the boat Check for fuel leakage fro...

Page 41: ...accurate ECM01791 2 Remove oil dipstick and wipe it clean 3 Insert the dipstick and remove it again Be sure to completely insert the dipstick into the dipstick guide otherwise the oil level measurement will be incorrect 4 Check the oil level using the dipstick to be sure the level falls between the upper and lower marks Fill with oil if it is below the lower mark or drain to the specified level if...

Page 42: ...n the bottom cowling 4 Check to be sure the rubber seal is seat ed correctly between the top cowling and the bottom cowling 5 Move the cowling lock lever to lock the top cowling as shown NOTICE If the top cowling is not installed correctly water spray under the top cowling can damage the engine or the top cowling can blow off at high speeds ECM01992 After installing check the fitting of the top co...

Page 43: ...rge A battery in good condition will pro vide a minimum of 12 volts Check that the battery connections are clean secure and covered by insulating covers The electrical connections of the battery and cables must be clean and properly connected or the bat tery will not start the engine If the battery needs charging consult your Yamaha dealer or the battery manufacturer s instructions EMU2743A Fillin...

Page 44: ...EMU27453 Operating engine EWM00421 Before starting the engine make sure that the boat is tightly moored and that you can steer clear of any obstructions Be sure there are no swimmers in the water near you When the air vent screw is loosened gasoline vapor will be released Gaso line is highly flammable and its vapors are flammable and explosive Refrain from smoking and keep away from open flames an...

Page 45: ... that the boat is tightly moored and that you can steer clear of any obstructions Be sure there are no swimmers in the water near you EMU34815 Manual start models tiller control EWM01842 Failure to attach the engine shut off cord could result in a runaway boat if operator is ejected Attach the engine shut off cord to a secure place on your clothing or your arm or leg while oper ating Do not attach...

Page 46: ...end of the cord into the engine shut off switch 3 Place the throttle grip in the start position 4 Pull out the choke knob fully 5 Pull the manual starter handle slowly un til you feel resistance Then give a strong pull straight out to crank and start the en gine 6 After the engine starts slowly return the manual starter handle to its original posi tion before releasing it 7 Slowly return the throt...

Page 47: ...herwise the engine may be difficult to start If the engine is difficult to start place the throttle grip in the warm engine position and try again Starting procedure warm engine 1 Place the gear shift lever in neutral 2 Attach the engine shut off cord to a se cure place on your clothing or your arm or leg Then install the clip on the other end of the cord into the engine shut off switch 3 Place th...

Page 48: ...leg while oper ating Do not attach the cord to clothing that could tear loose Do not route the cord where it could become entangled preventing it from functioning 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 be thrown ...

Page 49: ...o use the choke when starting a warm engine If the choke knob is left in the start position while the engine is running the en gine will run poorly or stall 5 Pull the manual starter handle slowly un til you feel resistance Then give a strong pull straight out to crank and start the en gine Repeat if necessary 6 After the engine starts slowly return the manual starter handle to its original posi t...

Page 50: ...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 be thrown forward 1 Place the remote control lever in neutral TIP The start in gear protection device prevents the engine from starting except when in neu tral 2 Attach the engine shut off cord to a se cure place on your clo...

Page 51: ... wait 10 seconds then crank the engine again ECM00193 8 Return the neutral throttle lever to the original position TIP When the engine is cold for example when the ambient temperature is low in winter it needs to be warmed up For further informa tion see page 46 EMU36511 Checks after starting engine EMU36524 Cooling water Check for a steady flow of water from the cooling water pilot hole A continu...

Page 52: ...fts smoothly into forward and reverse and back to neutral EMU36981 Stop switches Turn the main switch to or press the engine stop button and make sure the en gine stops Confirm that removing the clip from the en gine shut off switch stops the engine Confirm that the engine cannot be started with the clip removed from the engine shut off switch EMU34563 Shifting EWM00181 Before shifting make sure t...

Page 53: ...ating in re verse TIP Tiller handle models The gear shift lever op erates only when the throttle grip is in the fully closed position To shift from in gear forward reverse to neu tral 1 Close the throttle so that the engine slows to idle speed 2 After the engine is at idle speed in gear move the remote control lever gear shift lever firmly and crisply into the neutral position F N R 32 32 ZMU05460...

Page 54: ... Water resistance stops it af ter the throttle lever is moved back to idle The stopping distance varies depending on gross weight water surface conditions and wind direction EMU27823 Stopping engine 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 EMU27835 Procedure 1 Push and h...

Page 55: ...off switch then turning the main switch to off EMU27865 Trimming outboard motor EWM00741 Excessive trim for the operating condi tions either trim up or trim down can cause boat instability and can make steer ing the boat more difficult This increases the possibility of an accident If the boat begins to feel unstable or is hard to steer slow down and or readjust the trim angle The trim angle of the...

Page 56: ... instability or control problems Improper trim an gle can cause loss of control TIP The outboard motor trim angle can be changed approximately 4 degrees by shifting the trim rod one hole EMU27906 Adjusting trim angle power tilt mod els EWM00754 Be sure all people are clear of the out board motor when adjusting the trim an gle Body parts can be crushed between the motor and the clamp bracket when t...

Page 57: ...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 When the bow of the boat is down it is easier to accelerate from a standing start onto plane Bow Up 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 dr...

Page 58: ...tor and the clamp bracket EWM00251 Leaking fuel is a fire hazard If there is a fuel joint on the outboard motor discon nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes Otherwise fuel may leak ECM00242 Before tilting the outboard motor stop the engine by following the procedure on page 48 Never tilt the outboard mo tor while the engine is running Se...

Page 59: ...oose from the tilt support and fall If the mo tor cannot be trailered in the normal running position use an additional support device to secure it in the tilt position For more detailed informa tion see page 58 ECM01642 EMU44610 Procedure for tilting up power tilt models 1 Place the remote control lever in neutral 2 Press the power tilt switch up until the outboard motor has tilted up com pletely ...

Page 60: ...he tilt position For more detailed in formation see page 58 ECM01642 EMU30193 Procedure for tilting down manual tilt models 1 Place the tilt lock lever in the lock posi tion 2 Slightly tilt the engine up until the tilt sup port bar is automatically released 3 Slowly tilt the engine down EMU44620 Procedure for tilting down power tilt models 1 Push the power tilt switch up until the outboard motor i...

Page 61: ...f the water increasing the chance of ac cident and personal injury ECM00261 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 ing can result EMU28126 Procedure 1 Place the remote control lever gear shift lever in neutral 2 Place the tilt lock ...

Page 62: ...e surface of the water when set ting up for and cruising in shallow water Otherwise severe damage from overheat ing can result EMU32953 Procedure for power tilt models 1 Place the remote control lever in neutral 2 Slightly tilt the outboard motor up to the desired position using the power tilt switch WARNING Using the power tilt switch on the bottom cowling while the boat is moving or engine is on...

Page 63: ...g in muddy turbid or acidic water Yamaha strongly recommends that you use the optional chromium plated water pump kit see page 16 if you use the outboard motor in acidic water or water with a lot of sediment in it such as muddy or turbid cloudy water After operating in such water flush the cool ing passages with fresh water to prevent cor rosion Also rinse the outside of the outboard motor with fr...

Page 64: ...e deteriorated fuel could clog the fuel line causing engine start difficulty or malfunction When storing or transporting the outboard motor make sure to follow the procedure list ed below Disconnect the fuel line from the outboard motor Tighten the fuel tank cap and its air vent screw When the outboard motor is tilted pro longed time for mooring or trailering the boat disconnect the fuel line from...

Page 65: ...he tiller handle 5 Loosen the clamp screw s 6 Hold the handgrip and steering bracket as shown in the illustration and lift up the outboard motor to dismount it from the boat 7 When transporting or storing the out board motor while removed from a boat keep the outboard motor in the attitude shown or use an outboard motor stand 1 Steering bracket 2 Handgrip 1 2 U6FW76E0 book Page 59 Tuesday November...

Page 66: ...m the sump keep the outboard motor in the attitude shown when transporting and storing it If storing or transporting the outboard motor on its side not up right put it on a cushion after draining the engine oil Do not place the outboard motor on its side before the cooling water has drained from it completely otherwise water may enter the cylinder through the exhaust port and cause engine trouble ...

Page 67: ...g or dur ing operation Keep hands hair and clothes away from the flywheel and other rotating parts while the engine is running EWM00092 8 Run the engine at a fast idle for a few minutes in neutral position 9 Just prior to turning off the engine quick ly spray Fogging Oil alternately into each carburetor or the fogging hole of the silencer cover if equipped When properly done the engine will smoke ...

Page 68: ...damage from over heating can result 1 After shutting off the engine unscrew the garden hose connector from the fitting on the bottom cowling 2 Screw the garden hose adapter onto a garden hose which is connected to a fresh water supply and then connect it to the garden hose connector 3 With the engine off turn on the water tap and let the water flush through the cool ing passages for about 15 minut...

Page 69: ...u do not have the proper skills tools or supplies to perform a maintenance procedure have a Yamaha dealer or other qualified mechan ic do the work The procedures involve disassembling the motor and exposing dangerous parts To reduce the risk of injury from moving hot or electrical parts Turn off the engine and keep the key s and engine shut off cord lanyard with you when you perform maintenance un...

Page 70: ...uick acceleration and decelera tion Frequent shifting Frequently starting and stopping the en gine s Operation that fluctuates often between light and heavy cargo loads Outboard motors operating under any of these above conditions require more fre quent maintenance Yamaha recommends that you do this service twice as often as specified in the maintenance chart For ex ample if a particular service s...

Page 71: ...hed with clean water after each use The symbol indicates the check ups which you may carry out yourself The symbol indicates work to be carried out by your Yamaha dealer Item Actions Initial Every Page 20 hours 3 months 100 hours 1 year 300 hours 3 years 500 hours 5 years Anode s external Inspection or re placement as nec essary 77 Anode s internal 1 Inspection or re placement as nec essary Anode ...

Page 72: ...Inspection 37 Propeller propeller nut cotter pin Inspection or re placement as nec essary 73 Shift link shift ca ble Inspection adjust ment or replace ment as necessary Spark plug s Inspection or re placement as nec essary 69 Spark plug caps spark plug wires Inspection or re placement as nec essary Water from the cooling water pilot hole Inspection 45 Throttle link throt tle cable Inspection adjus...

Page 73: ...acement as nec essary Wire harness con nections wire cou pler connections Inspection or re placement as nec essary Fuel tank Yamaha portable tank Inspection and cleaning as neces sary Item Actions Every Page 1000 hours Exhaust guide ex haust manifold Inspection or re placement as nec essary Timing belt Replacement Item Actions Initial Every Page 20 hours 3 months 100 hours 1 year 300 hours 3 years...

Page 74: ...Maintenance 68 EMU28946 Greasing Yamalube grease A water resistant grease Yamaha grease D corrosion resistant grease for propeller shaft ZMU06671 U6FW76E0 book Page 68 Tuesday November 23 2021 7 37 AM ...

Page 75: ...e WARNING When removing or installing a spark plug be careful not to damage the in sulator A damaged insulator could al low external sparks which could lead to explosion or fire EWM00562 3 Be sure to use the specified spark plug otherwise the engine may not operate properly Before fitting the spark plug measure the electrode gap with a wire thickness gauge replace it if out of spec ification 4 Whe...

Page 76: ...d is set to specifi cation For idle speed specifications see page 11 If you have difficulty verifying the idle speed or the idle speed requires adjustment consult a Yamaha dealer or other qualified mechanic EMU38808 Changing engine oil EWM00761 Avoid draining the engine oil immediate ly after stopping the engine The oil is hot and should be handled with care to avoid burns Be sure the outboard mot...

Page 77: ... oil immediately TIP If the oil does not drain easily change the tilt angle or turn the outboard motor to port and starboard to drain the oil 7 Put a new gasket on the oil drain screw Apply a light coat of oil to the gasket and install the drain screw TIP If a torque wrench is not available when you are installing the drain screw finger tighten the screw just until the gasket comes into contact wi...

Page 78: ...be located and corrected ECM01623 14 Install the top cowling 15 Dispose of used oil according to local regulations TIP For more information on the disposal of used oil consult your Yamaha dealer Change the oil more often when operating the engine under adverse conditions such as extended trolling EMU48060 Why Yamalube YAMALUBE oil is a Genuine YAMAHA Part born of the engineers passion and belief t...

Page 79: ...n loosening or tightening the propeller nut Put a wood block between the anti cavi tation plate and the propeller to prevent the propeller from turning Checkpoints Check each of the propeller blades for ero sion from cavitation or ventilation or other damage Check the propeller shaft for damage Check the splines for wear or damage Check for fish line tangled around the pro peller shaft Check the p...

Page 80: ...rine grease or a corro sion resistant grease to the propeller shaft 2 Install the spacer if equipped thrust washer washer if equipped and pro peller on the propeller shaft NOTICE Make sure to install the thrust washer before installing the propeller Other wise the lower case and propeller boss could be damaged ECM01882 3 Install the spacer if equipped and the washer Tighten the propeller nut to th...

Page 81: ...asher washer and propeller on the propeller shaft NOTICE Make sure to install the thrust washer before installing the propeller Other wise the lower case and propeller boss could be damaged ECM01882 3 Install the spacer and the washer Tight en the propeller nut to the specified torque 4 Align the propeller nut with the propeller shaft hole Insert a new cotter pin in the hole and bend the cotter pi...

Page 82: ...emove all metal particles from the screw before installing it Always use new gaskets Do not reuse the removed gaskets 4 Remove the oil level plug and gasket to allow the oil to drain completely NOTICE Check the used gear oil after it has been drained If the gear oil is milky or contains water or a large amount of metal particles the gear case may be damaged Have a Yamaha dealer check and repair th...

Page 83: ...ng and replacing anode s 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 ECM00721 Do not paint anodes as this would render them ineffective TIP Inspect ground leads attached to external an odes on equipped models Consult a Yamah...

Page 84: ...r and low battery alert functions will help you monitor the bat tery s charge If the battery needs charg ing consult your Yamaha dealer 3 Check the battery connections They should be clean secure and covered by an insulating cover WARNING Bad connections can produce shorting or arcing and cause an explosion EWM01913 EMU29335 Connecting the battery EWM00573 Mount the battery holder securely in a dr...

Page 85: ...they are left on the electrical system can be damaged ECM01931 2 Disconnect the negative cable s from the negative terminal NOTICE Al ways disconnect all negative cables first to avoid a short circuit and dam age to the electrical system ECM01941 3 Disconnect the positive cable s and re move the battery from the boat 4 Clean maintain and store the battery according to the manufacturer s instruc ti...

Page 86: ...dealer Q Is shift lever in gear A Shift to neutral Engine will not start starter operates Q Is fuel tank empty A Fill tank with clean fresh fuel Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is fuel filter clogged A Clean or replace filter Q Is starting procedure incorrect A See page 39 Q Has fuel pump malfunctioned A Have serviced by a Yamaha dealer Q Are spark plug s fouled...

Page 87: ...a Yamaha dealer Q Is air vent screw on fuel tank closed A Open air vent screw Q Is choke knob pulled out A Return to home position Q Is motor angle too high A Return to normal operating position Q Is carburetor clogged A Have serviced by a Yamaha dealer Q Is fuel joint connection incorrect A Connect correctly Q Is throttle valve adjustment incorrect A Have serviced by a Yamaha dealer Q Is battery ...

Page 88: ...correct type A Inspect spark plug s Clean or replace with recommended type Q Are weeds or other foreign matter tangled on gear housing A Remove foreign matter and clean lower unit Q Is fuel system obstructed A Check for pinched or kinked fuel line or other obstructions in fuel system Q Is fuel filter clogged A Clean or replace filter Q Is fuel contaminated or stale A Fill tank with clean fresh fue...

Page 89: ...bolt Q Is steering pivot loose or damaged A Tighten or have serviced by a Yamaha dealer EMU29435 Temporary action in emergen cy EMU29442 Impact damage EWM00871 The outboard motor can be seriously damaged by a collision while operating or trailering Damage could make the out board motor unsafe to operate If the outboard motor hits an object in the wa ter follow the procedure below 1 Stop the engine...

Page 90: ...th the unit itself the outboard motor can be tilt ed manually 1 Stop the engine 2 Loosen the manual valve screw by turn ing it counterclockwise until it stops 3 Adjust the outboard motor to a navigable angle tighten the manual valve screw clockwise and secure the outboard mo tor EMU29534 Starter will not operate If the starter mechanism does not operate the engine cannot be cranked with the start ...

Page 91: ...rter rope It could whip behind you and injure some one An unguarded rotating flywheel is very dangerous Keep loose clothing and other objects away when starting the engine Use the emergency starter rope only as instructed Do not touch the fly wheel or other moving parts when the engine is running Do not install the starter mechanism or top cowling after the engine is running Do not touch the ignit...

Page 92: ... operation If the battery voltage is low or in the unlikely event of an ignition system malfunction the engine speed may become erratic or the en gine may stop In such a situation follow the procedure below Disconnect the yellow cord emergency cir cuit of the CDI unit Run the engine at low speed and return to port NOTICE Follow this procedure only in an emergency and just long enough to return to ...

Page 93: ...Trouble Recovery 87 ately NOTICE Do not attempt to run the outboard motor until it has been com pletely inspected ECM00402 U6FW76E0 book Page 87 Tuesday November 23 2021 7 37 AM ...

Page 94: ...r or other conditions 57 D Dismounting the outboard motor 58 E EC Declaration of Conformity DoC 5 Electric shock 1 Emergency engine operation 86 Emergency equipment 16 Emergency starting engine 85 Emergency temporary action in 83 Engine fails to operate 86 Engine oil 35 Engine oil changing 70 Engine oil filling 33 Engine oil requirements 14 Engine shut off cord lanyard 1 35 Engine shut off cord la...

Page 95: ...er tilt 1 Power tilt switch 24 Power tilt system checking 37 Power tilt unit 26 Power tilt will not operate 84 Propeller 1 Propeller checking 73 Propeller installing 74 Propeller removing 73 Propeller selection 14 R Read manuals and labels 7 Remote control box 20 Remote control lever 20 Remote control requirements 13 Replacement parts 63 Rotating parts 1 S Sending fuel portable tank 38 Severe oper...

Page 96: ...ing 36 Top cowling removing 34 Transporting and storing outboard motor 58 Trim rod tilt pin 25 Trimming outboard motor 49 Troubleshooting 80 W Warming up engine 46 Warning labels 7 Weather 4 Wiring and connectors inspecting 73 Y Yamalube 72 U6FW76E0 book Page 90 Tuesday November 23 2021 7 37 AM ...

Page 97: ...U6FW76E0 book Page 91 Tuesday November 23 2021 7 37 AM ...

Page 98: ...Printed in Japan January 2022 0 5 1 CR U6FW76E0 book Page 1 Tuesday November 23 2021 7 37 AM ...

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Yamaha F6D, Owner'S Manual

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