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F75B F80B F90B F100D OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 6D6-28199-25-E0...
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Read this manual carefully 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.
If there is any To the owner question concerning this manual, please con- Thank you for choosing a Yamaha outboard sult your Yamaha dealer. motor. This Owner’s Manual contains infor- To ensure long product life, Yamaha recom-...
Safety information EMU33622 area at all times. Be sure no one is in this area Outboard motor safety before operating the power trim and tilt mech- Observe these precautions at all times. anism. EMU36500 The power trim and tilt switches operate even Propeller when the main switch is off.
Have an approved personal flotation device tions. Overloading incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han- recommends that you must wear a PFD dling and lead to an accident, capsizing or whenever boating. At a minimum, children swamping.
Safety information EMU33890 Boating safety publications Be informed about boating safety. Additional publications and information can be obtained from many boating organizations. EMU33600 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 ZMU06025 location, but all are basically the same as the...
Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto- len. 1. Key number...
General information ZMU01697 1. CE marking location ZMU06040 EMU25213 C-Tick label Engines affixed with this label conform to cer- tain portion(s) of the Australian Radio Com- munications Act. ZMU04218 1. C-Tick label location...
Read all labels on the outboard motor and the boat. If you need any additional information, contact your Yamaha dealer. EMU33831 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F75B, F80B, F90B, F100D...
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General information ZMU05706 EMU33912 Contents of labels EWM01671 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels. EWM01691 Wear an approved personal flotation de- WARNING vice (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to in-gear protection.
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General information EMU33843 Electrical hazard Symbols The following symbols mean as follows. Notice/Warning ZMU05666 Remote control lever/gear shift lever operat- ing direction, dual direction ZMU05696 Read Owner’s Manual ZMU05667 Engine start/ Engine cranking ZMU05664 Hazard caused by continuous rotation ZMU05668 ZMU05665...
Specifications and requirements EMU34520 Performance: Specifications Full throttle operating range: TIP: 5000–6000 r/min “(AL)” stated in the specification data below Maximum output: represents the numerical value for the alumi- F100DET 73.6 kW@5500 r/min (100 num propeller installed. HP@5500 r/min) Likewise, “(SUS)” represents the value for F75BET 55.2 kW@5500 r/min (75 stainless steel propeller installed and “(PL)”...
Contact Your Yamaha dealer can help you select the your Yamaha dealer. right propeller for your boating needs. Select a propeller that will allow the engine to reach...
Start-in-gear protection 3.5 L (3.70 US qt, 3.08 Imp.qt) Amount of adding engine oil (at Periodic Yamaha outboard motors affixed with the pic- maintenance) Including oil filter: tured label or Yamaha-approved remote con- 3.7 L (3.91 US qt, 3.26 Imp.qt) trol units are equipped with start-in-gear protection device(s).
All etha- nol blends containing more than 10% ethanol can cause fuel system damage or cause en- gine starting and running problems. Yamaha does not recommend gasohol containing methanol because it can cause fuel system damage or engine performance problems.
An extra engine shut-off cord (lanyard) with the swivel bracket. clip. Spare parts, such as an extra set of spark plugs. Consult your Yamaha dealer for details. EMU25221 Emission control information EMU25310 U.S. insular areas Engines affixed with the label pictured below conform to U.S.
EMU2579J Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models. F75B, F80B, F90B, F100D 1. Top cowling 2. Top cowling lock lever(s) 3. Anti-cavitation plate 4. Trim tab (anode) 5.
Components ZMU05484 1. Tachometer unit (Square type)* 2. Speedometer unit (Square type)* 3. Fuel management meter (Square type)* EMU25802 Fuel tank If your model was equipped with a portable fuel tank, its function is as follows. EWM00020 WARNING The fuel tank supplied with this engine is ZMU02284 its dedicated fuel reservoir and must not 1.
Components EMU25841 is moved about 35° (a detent can be felt). Fuel gauge Moving the lever farther opens the throttle, This gauge is located on either the fuel tank and the engine will begin to accelerate. cap or on the fuel joint base. It shows the ap- proximate amount of fuel remaining in the tank.
Components TIP: The neutral throttle lever will operate only when the remote control lever is in neutral. The remote control lever will operate only when the neutral throttle lever is in the closed position. 1. Forward “ ” 2. Neutral “ ” 3.
Components 1. Throttle indicator When constant speed is desired, tighten the EMU25973 adjuster to maintain the desired throttle set- Throttle friction adjuster ting. A friction device provides adjustable resis- EMU25993 tance to movement of the throttle grip or the Engine shut-off cord (lanyard) and remote control lever, and can be set accord- clip ing to operator preference.
Components EMU26090 Main switch The main switch controls the ignition system; its operation is described below. “ ” (off) With the main switch in the “ ” (off) posi- tion, the electrical circuits are off, and the key can be removed. “...
Components EMU26111 the switch “ ” (down) tilts the outboard motor Steering friction adjuster down and trims it down. When the switch is re- A friction device provides adjustable resis- leased, the outboard motor will stop in its cur- tance to the steering mechanism, and can be rent position.
Components EWM01030 WARNING Use the power trim and tilt switch located on the bottom engine cowling only when the boat is at a complete stop with the en- gine off. Attempting to use this switch while the boat is moving could increase the risk of falling overboard and could dis- tract the operator, increasing the risk of collision with another boat or an obstacle.
Components ZMU02525 1. Tilt support lever 1. Trim tab 2. Bolt ECM00660 3. Cap NOTICE Do not use the tilt support lever or knob when trailering the boat. The outboard mo- tor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running position, use an addi- tional support device to secure it in the tilt position.
If the alert system has activated, stop the TIP: engine and consult a Yamaha dealer imme- For details on usage, see page 58. diately. EMU26303 Alert indicator If the engine develops a condition which is cause for alert, the indicator lights up.
Instruments and indicators EMU36014 Indicators EMU36023 Low oil pressure-alert indicator If oil pressure drops too low, this indicator will light up. For further information, see page 33. ECM00022 NOTICE Do not continue to run the engine if the low oil pressure-alert indicator is on and the engine oil level is lower.
Instruments and indicators EMU36050 Tachometer The tachometer displays engine speed in hundreds of revolutions per minute (r/min). For example, if the tachometer display reads “22” then the engine speed is 2200 r/min. EMU26621 Trim meter This meter shows the trim angle of your out- board motor.
Instruments and indicators ZMU01736 1. Speedometer 1. Low oil pressure-alert indicator 2. Fuel gauge EMU26583 Overheat-alert indicator 3. Trip meter/clock/voltmeter 4. Alert indicator(s) If the engine temperature rises too high, the alert indicator will start to blink. For further in- All segments of the display will light momen- formation on reading the indicator, see page tarily after the main switch is turned on and...
Press the “ ” (mode) button until the the gauge will give false readings. Consult desired hour is displayed. your Yamaha dealer on how to correctly set Press the “ ” (set) button again, the the selector switch. NOTICE: Running out of minute display will begin blinking.
EMU26732 able. For the optional sensor, consult your Low battery voltage-alert indicator Yamaha dealer. The tachometer unit is avail- If battery voltage drops, the display will auto- able in round or square types. Check your ta- matically turn on and blink.
If the buzzer Overheat alert sounds and the water separator-alert indica- If the engine temperature rises too high while tor blinks, consult your Yamaha dealer imme- cruising, the overheat-alert indicator will start diately. to blink. The engine speed will automatically decrease to about 2000 r/min.
Get back to value will start to blink. Get back to the port the port soon and consult a Yamaha dealer soon if the low battery voltage-alert device immediately.
For the optional sensors, consult fuel display. The chosen display is selected your Yamaha dealer. by using the “ ” (set) and “ ” (mode) After the main switch is first turned on, all the buttons as described in this section.
Alert system ECM00091 NOTICE Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be lo- cated and corrected. EMU2681A Overheat alert This engine has an overheat-alert device. If...
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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 and the alert device does not switch off, consult your Yamaha dealer.
Improper mounting of the outboard mo- can help determine the optimum mounting tor could result in hazardous conditions height. Consult your Yamaha dealer or boat such as poor handling, loss of control, manufacturer for further information on deter- or fire hazards. For permanently mount- mining the proper mounting height.
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Installation Incorrect engine height or obstructions to the smooth flow of water (such as the design or condition of the boat, or ac- cessories such as transom ladders or depth finder transducers) can create air- borne water spray while the boat is cruising.
Operation EMU36380 TIP: First-time operation Failure to follow the break-in procedure could EMU36390 Fill engine oil result in reduced engine life or even severe The engine is shipped from the factory without engine damage. Run the engine in the water, engine oil.
Check that the fuel filter is clean and free of water. If any water is found in the fuel, or if a significant amount of debris is found, the fuel ZMU06106 tank should be checked and cleaned by a Yamaha dealer. ZMU06107...
Operation EMU36900 Controls Tiller handle models: Turn the tiller handle fully to the left and right to make sure operation is smooth. Turn the throttle grip from the fully closed to the fully open position. Make sure that it turns smoothly and that it completely re- turns to the fully closed position.
[ECM01800] ZMU06132 After installing, check the fitting of the top cowling by pushing it with both hands. If the top cowling is loose, have it repaired by your Yamaha dealer. ZMU06166 1. Fitting 2. Flushing device EMU36961 Install cowling Be sure that all cowling lock levers are re- leased.
Operation EMU34581 battery and cables must be clean and proper- Power trim and tilt system ly connected or the battery will not start the EWM01930 engine. WARNING Refer to the battery manufacturer’s instruc- Never get under the lower unit while it is tions for checks for your particular battery.
Operation drowsiness. Keep cockpit and cabin ar- Fuel tank capacity: eas well ventilated. Avoid blocking ex- 24.0 L (6.34 US gal, 5.28 Imp.gal) haust outlets. If there is an air vent screw on the fuel tank cap, loosen it 2 or 3 turns. ZMU02834 Tighten the filler cap securely.
Operation 1. Arrow TIP: EMU27492 The start-in-gear protection device prevents Starting engine the engine from starting except when in neu- EWM01600 WARNING tral. Attach the engine shut-off cord to a se- Before starting the engine, make sure that cure place on your clothing, or your arm the boat is tightly moored and that you can or leg.
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Operation TIP: When the engine is cold, it needs to be warmed up. For further information, see page 46. If the engine is warm and fails to start, open the throttle slightly and try to start the en- gine again. If the engine still fails to start, see page 73.
Operation Turn the main switch to “ ” (start), and hold it for a maximum of 5 seconds. START Attach the engine shut-off cord to a se- ZMU01881 cure place on your clothing, or your arm or leg. Then install the clip on the other Immediately after the engine starts, re- end of the cord into the engine shut-off lease the main switch to return it to “...
EMU36980 Stop switches Consult your Yamaha dealer if the prob- Turn the main switch to “ ”, or press the lem cannot be located and corrected. engine stop button and make sure the en- gine stops.
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Operation To shift from in gear (forward/reverse) to neu- tral Close the throttle so that the engine slows to idle speed. 1. Neutral interlock trigger Move the remote control lever / gear shift lever firmly and crisply forward (for for- ward gear) or backward (for reverse gear) [about 35°...
Operation 1. “ ” switch EMU31742 Stopping boat 2. “ ” switch EWM01510 To increase the trolling speed, press the “ ” WARNING switch. Do not use the reverse function to slow To decrease the trolling speed, press the “ ”...
Operation TIP: The engine can also be stopped by pulling the cord and removing the clip from the engine shut-off switch, then turning the main switch to “ ” (off). EMU27862 Trimming outboard motor EWM00740 WARNING 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.
Operation Adjust the outboard motor trim angle using the power trim and tilt switch. 1. Power trim and tilt switch ZMU04258 1. Trim operating angle EMU27885 Adjusting trim angle (Power trim and tilt) 1. Power trim and tilt switch EWM00753 WARNING Be sure all people are clear of the out- board motor when adjusting the trim an-...
Operation Make test runs with the trim set to different an- gles to find the position that works best for your boat and operating conditions. EMU27911 Adjusting boat trim When the boat is on plane, a bow-up attitude results in less drag, greater stability and effi- ciency.
Operation EWM00221 WARNING Be sure all people are clear of the out- board motor when tilting up and down, Body parts can be crushed between the motor and the clamp bracket when the mo- tor is trimmed or tilted. EWM00250 WARNING Leaking fuel is a fire hazard.
Operation tilt switch “ ” (down) to retract the trim rods. NOTICE: Be sure to retract the trim rods completely during mooring. This protects the rods from marine growth and corrosion which could damage the power trim and tilt mecha- nism.
Operation ZMU04255 Slightly tilt the outboard motor up to the EMU28061 Shallow water desired position using the power trim and EMU32851 tilt switch. WARNING! Using the power Power trim and tilt models trim and tilt switch on the bottom The outboard motor can be tilted up partially cowling while the boat is moving or to allow operation in shallow water.
Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (see page 13) 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.
USE CARE when transporting fuel tank, is advisable to have your outboard motor ser- whether in a boat or car. viced by an authorized Yamaha dealer prior to DO NOT fill fuel container to maximum storage. However, you, the owner, with a min- capacity.
If the overheat alert device is activated, turn sages. Avoid running the outboard the engine off, and consult your Yamaha motor at high speed while on the dealer. flushing attachment, otherwise over- Run the engine at a fast idle for a few heating could occur.
69. Inspect the oil for the presence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use. Grease all grease fittings. For further de- 1. Fitting 2. Garden hose adapter tails, see page 64.
Be sure the connector is have the proper skills, tools, or supplies to tightened securely on the fitting after perform a maintenance procedure, have a flushing the engine. Yamaha dealer or other qualified mechan- [ECM00541] ic do the work. TIP: The procedures involve disassembling When flushing the engine with the boat in the motor and exposing dangerous parts.
Yamaha marine dealership. EMU28511 Replacement parts If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and pas- sengers.
When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine should be flushed 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. Initial Every Item Actions...
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Maintenance Initial Every Item Actions 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Fuel line(High pres- Inspection sure) Fuel line(High pres- Inspection or replace- sure) ment as necessary Fuel line(Low pres- Inspection sure) Fuel line(Low pres- Inspection or replace-...
Wire harness connec- Inspection or replace- tions/Wire coupler con- ment as necessary nections (Yamaha) Meter/gauge Inspection Inspection and clean- (Yamaha) Fuel tank ing as necessary EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Guide exhaust/ex- Inspection or replace-...
Do not attempt to di- agnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You 1. Spark plug gap should periodically remove and inspect the 2.
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10. Recheck the oil level using the dipstick to be sure the level falls between the upper and lower marks. Consult your Yamaha dealer if the oil level is out of specified lev- ZMU06195 1. Oil changer Add the correct amount of oil through the filler hole.
Put a wood block between the anti-cavi- For more information on the disposal of tation plate and the propeller to prevent the used oil, consult your Yamaha dealer. propeller from turning. Change the oil more often when operating the engine under adverse conditions such as extended trolling.
Be sure to use a new cotter pin and bend the ends over securely. Otherwise the pro- peller could come off during operation and be lost. Apply Yamaha marine grease or a corro- sion resistant grease to the propeller shaft. Check the propeller shaft oil seal for dam- Install the spacer (if equipped), thrust age.
Never get under the lower unit while it is which can cause gear damage. Con- tilted, even when the tilt support lever or sult a Yamaha dealer for repair of the knob is locked. Severe injury could oc- lower unit seals.
If you have any question about properly ZMU03231 doing this procedure, consult your Yamaha dealer. Remove the screws holding the fuel joint Keep away from sparks, cigarettes, assembly. Pull the assembly out of the flames, or other sources of ignition tank.
Wear protective eye gear and rubber Inspect ground leads attached to external an- gloves. odes on equipped models. Consult a Yamaha Do not smoke or bring any other source dealer for inspection and replacement of inter- of ignition near the battery.
3. Battery charge. If the battery needs charging, The electrical contacts of the battery and consult your Yamaha dealer. cables must be clean and properly con- Check the battery connections. They nected, or the battery will not start the en- should be clean, secure, and covered by gine.
Yamaha outboard motors. Therefore Q. Has fuel pump malfunctioned? some items may not apply to your model. A. Have serviced by a Yamaha dealer. If your outboard motor requires repair, bring it to your Yamaha dealer. Q. Are spark plug(s) fouled or of incorrect...
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A. Return to normal operating position. A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? Q. Is fuel filter clogged? A. Have serviced by a Yamaha dealer. A. Clean or replace filter. Q. Is fuel joint connection incorrect? Q. Have ignition parts failed? A.
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Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or oth- A. Have serviced by a Yamaha dealer. er obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
A. Tighten bolt. EWM00631 WARNING Q. Is steering pivot loose or damaged? Substituting an incorrect fuse or a piece of A. Tighten or have serviced by a Yamaha wire could allow excessive current flow. dealer. This could cause electric system damage EMU29433 Temporary action in emergency and a fire hazard.
Trouble Recovery ZMU04249 1. Manual valve screw Put the engine in the desired position, then tighten the manual valve screw by turning it clockwise. EMU37580 Water separator-alert indicator blinks while cruising EWM01500 WARNING Gasoline is highly flammable, and its va- 1.
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Trouble Recovery 1. Water separator-alert indicator Stop the engine. Remove the top cowling. Remove the plastic tie. 1. Water detection switch coupler Unscrew the filter cup from the filter hous- ing. NOTICE: Be careful not to twist the water detection switch lead when un- screwing the filter cup.
It 11. Start the engine and make sure that the could whip behind you and injure some- water separator-alert indicator remains one. off. Have a Yamaha dealer inspect the outboard motor after returning to port.
Trouble Recovery An unguarded, rotating flywheel is very dangerous. Keep loose clothing and other objects away when starting the en- gine. Use the emergency starter rope only as instructed. Do not touch the fly- wheel or other moving parts when the engine is running.
EMU33501 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immediate- ly. NOTICE: Do not attempt to run the out- board motor until it has been completely inspected.
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YAMAHA MOTOR CO., LTD. Printed in Japan March 2008–0.7 × 1 CR Printed on recycled paper...