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F9.9H F15C F20B OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 6AG-28199-79-E0...
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EMU25053 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.
Any damage tain maximum enjoyment from your new resulting from neglect of these instructions is Yamaha. If you have any question about the not covered by warranty. operation or maintenance of your outboard Some countries have laws or regulations re- motor, please consult a Yamaha dealer.
Safety information tor and the clamp bracket when the motor is EMU33623 Outboard motor safety trimmed or tilted. Keep body parts out of this Observe these precautions at all times. area at all times. Be sure no one is in this EMU36502 area before operating the power tilt mecha- Propeller...
Overloading or incorrect weight Have an approved PFD on board for every distribution can compromise the boats han- occupant. Yamaha recommends that you dling and lead to an accident, capsizing or must wear a PFD whenever boating. At a...
Safety information EMU33773 EMU33881 Avoid collisions Passenger training Scan constantly for people, objects, and oth- Make sure at least one other passenger is er boats. Be alert for conditions that limit your trained to operate the boat in the event of an visibility or block your vision of others.
Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for ZMU01692 reference in case your outboard motor is sto- 1. Serial number len.
General information tions of the European Parliament directive relating to machinery. Each conformed outboard motor accompa- nied with EC DoC.EC DoC contains the fol- lowing information; Name of Engine Manufacture Model name Product code of model (Approved model ...
Read any manuals supplied with the boat. Read all labels on the outboard motor and the boat. If you need any additional information, contact your Yamaha dealer. EMU33834 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. ZMU06638...
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General information ZMU05706 EMU33913 Contents of labels EWM01672 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels. EWM01692 Wear an approved personal flotation WARNING device (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to ...
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General information Electrical hazard EMU33844 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 F9.9HMH 1078 mm (42.4 in) EMU34522 Specifications Overall height L: TIP: 1205 mm (47.4 in) “(AL)” stated in the specification data below Motor transom height S: F15CE 438 mm (17.2 in) represents the numerical value for the alumi- F15CMH 438 mm (17.2 in) num propeller installed.
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Specifications and requirements Performance: Starting system: Full throttle operating range: F15CE Electric starter 5000–6000 r/min F15CEH Electric starter Rated power: F15CEP Electric starter F9.9HE 7.3 kW (9.9 HP) F15CMH Manual starter F9.9HMH 7.3 kW (9.9 HP) F20BE Electric starter Rated power: F20BEH Electric starter F15CE 11.0 kW (15 HP) F20BEP Electric starter...
To connect multiple batteries, such as for device prevents the engine from starting un- multiple engine configurations or for an ac- less it is in neutral. cessory battery, consult your Yamaha dealer about battery selection and correct wiring. EMU44770 Without a rectifier or Rectifier...
Your Yamaha dealer can help you select the right propeller for your boating needs. Select Recommended engine oil: a propeller that will allow the engine to reach...
Recommended engine oil grade 2 blends containing more than 10% ethanol can cause fuel system damage or cause en- 122˚F gine starting and running problems. Yamaha 50˚C does not recommend gasohol containing 15W–40 methanol because it can cause fuel system damage or engine performance problems.
(including metric sizes), and electrical tape. Waterproof flashlight with extra batteries. An extra engine shut-off cord (lanyard) with clip. Spare parts, such as an extra set of spark plugs. Consult your Yamaha dealer for details.
Components EMU2579Z Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els (order from dealer). ZMU07971 1. Top cowling 16. Tilt lock lever* 2. Cowling lock lever(s) 17. Clamp screw 3.
Components fuel tank, its function is as follows. EMU26182 Remote control box EWM00021 WARNING The remote control lever actuates both the shifter and the throttle. The electrical switch- The fuel tank supplied with this engine is es are mounted on the remote control box. its dedicated fuel reservoir and must not be used as a fuel storage container.
Components EMU26191 EMU26213 Remote control lever Neutral throttle lever Moving the lever forward from the neutral po- To open the throttle without shifting into ei- sition engages forward gear. Pulling the le- ther forward or reverse, put the remote con- ver back from neutral engages reverse.
Components EMU25925 Gear shift lever Move the gear shift lever forward to engage the forward gear or rearward to engage the reverse gear. ZMU05338 1. Throttle indicator EMU25977 Throttle friction adjuster ZMU05519 A friction device provides adjustable resis- tance to movement of the throttle grip or the 1.
Components ZMU05342 When constant speed is desired, tighten the 1. Cord adjuster to maintain the desired throttle set- 2. Clip ting. 3. Engine shut-off switch EMU25996 Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run.
Components EMU26092 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 there is too much resistance, it could be difficult to steer, which could result in an accident. 1. Power tilt switch ZMU05522 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.
Components juster. relation to the transom. EMU26254 Trim tab EWM00841 WARNING An improperly adjusted trim tab could cause difficult steering. Always test run after the trim tab has been installed or re- placed to be sure steering is correct. Be sure you have tightened the bolt after ad- justing the trim tab.
Components sition. To release, push the tilt lock lever in ECM01661 NOTICE the release position. Do not use the tilt support bar when EMU26322 Tilt support knob trailering the boat. The outboard motor To keep the outboard motor in the tilted up could shake loose from the tilt support position, push the tilt support knob under the and fall.
Components cure it in the tilt position. EMU26305 Alert indicator EMU26385 If the engine develops a condition which is Cowling lock lever (pull up type) cause for alert, the indicator lights up. For To remove the engine top cowling, pull up details on how to read the alert indicator, see the cowling lock lever(s) and lift off the cowl- page 27.
Instruments and indicators EMU36016 Indicators EMU36025 Low oil pressure-alert indicator If oil pressure drops too low, this indicator will light up. For further information, see page 27. ECM00023 NOTICE Do not continue to run the engine if the low oil pressure-alert indicator is on ZMU06257 and the engine oil level is lower.
Check the cooling water inlet for clogging. Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU2681D Overheat alert This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate.
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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.
Installation Hold the handgrips and steering brack- EMU26903 Installation ets as shown in the illustration and lift up The information presented in this section is the outboard motor using two people. intended as reference only. It is not possible to provide complete instructions for every possible boat and motor combination.
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25 mm (1 in) below it. Test runs at different heights can help de- termine the optimum mounting height. Consult your Yamaha dealer or boat man- ufacturer for further information on deter- mining the proper mounting height. For instructions on setting the trim angle of ...
This board (if packed). For details, consult could cause loss of control and seri- your Yamaha dealer. WARNING! Avoid ous injury. Make sure the clamp using bolts, nuts or washers other screws are tightened securely. Occa-...
Operation procedure could result in reduced engine EMU36382 First-time operation life or even severe engine damage. [ECM00802] EMU36393 EMU27086 Fill engine oil Procedure for 4-stroke models Your new engine requires a period of 10 The engine is shipped from the factory with- hours break-in to allow mating surfaces of out engine oil.
If any water is found in the fuel, or if a ver and lift off the top cowling. significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer. EMU36443 Fuel system ZMU06169...
Insert the oil dipstick completely and re- move it again. Check that the oil level on the oil dipstick is between the upper and lower marks. Consult your Yamaha dealer if the oil level is not at the proper level or if it ap-...
ZMU06136 [ECM01802] 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. ZMU06172 1. Fitting...
Operation that the tilt rod is pushed out completely. Check that the tilt rod is free of corrosion or other flaws. Tilt the outboard motor down. Check that the tilt rod operates smoothly. EMU36583 Battery Check that the battery is in good condition, and fully charged.
Operation ZMU04047 ZMU06598 Tighten the filler cap securely. 10. Wipe up any spilled gasoline immediate- ly with dry rags. Dispose rags properly according to local laws or regulations. EMU27453 Operating engine EWM00421 WARNING Before starting the engine, make sure ZMU02041 that the boat is tightly moored and that you can steer clear of any obstructions.
Operation tank cap, loosen it 2 or 3 turns. ing to local laws or regulations. Squeeze the primer pump, with the ar- row pointing up, until you feel it become firm. During engine operation place the tank horizontally, otherwise fuel cannot be drawn from the fuel tank.
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Operation 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 forward. Starting procedure (cold engine) Place the gear shift lever in neutral.
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Operation TIP: If the throttle is opened too much, the en- gine speed rises rapidly, causing the out- board motor to swivel toward the starboard side. Do not repeat opening and closing of the throttle grip as this cause the spark plug to wet with fuel and prevent from the engine to start.
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Operation friction adjuster. If there is too much or leg. Then install the clip on the other resistance, it could be difficult to end of the cord into the engine shut-off move the throttle grip, which could switch. result in an accident. [EWM02251] EMU27606 Electric start/prime start models...
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Operation turn to its original position. NOTICE: the boat could slow rapidly. This could Never push the starter button while cause people and objects in the boat to the engine is running. Do not keep be thrown forward. the starter motor turning for more Place the remote control lever in neutral.
Immediately after the engine starts, re- case or the cooling water pilot hole is lease the main switch and allow it to re- blocked. Consult your Yamaha dealer if ” (on). NOTICE: Never turn turn to “ the problem cannot be located and cor- the main switch to “...
Operation if necessary. Consult your Yamaha dealer if the cause for the low oil pressure alert cannot be found. [ECM01832] EMU36532 Checks after engine warm up EMU36542 Shifting While the boat is tightly moored, and without applying throttle, confirm that the engine shifts smoothly into forward and reverse, and 1.
Operation tral position. ZMU05729 TIP: Tiller handle models: The gear shift lever op- erates only when the throttle grip is in the ful- ly closed position. To shift from in gear (forward/reverse) to neutral Close the throttle so that the engine slows to idle speed.
Operation wind direction. EMU27822 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. EMU27848 Procedure Push and hold the engine stop button or ZMU05547 turn the main switch to “...
Operation trim angle. The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. Correct trim angle will help im- prove performance and fuel economy while reducing strain on the engine. Correct trim angle depends upon the combination of boat, engine, and propeller.
Operation board motor when adjusting the trim your boat and operating conditions. angle. Body parts can be crushed be- TIP: tween the motor and the clamp bracket Stay within the trim operating angle when when the motor is trimmed or tilted. trimming the outboard motor using the power Use caution when trying a trim position tilt system.
Operation EWM00223 WARNING Make sure that no one is near the out- board motor when tilting the outboard motor up or down. Otherwise, body parts could be crushed between the outboard motor and the clamp bracket. EWM00251 WARNING Leaking fuel is a fire hazard. If there is a Bow Down fuel joint on the outboard motor, discon- Too much trim-in causes the boat to “plow”...
Operation NOTICE: Do not use the tilt support lever or knob when trailering the boat. The outboard motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running position, use an additional support device to secure it in the tilt position.
Operation ZMU04884 EMU30193 Procedure for tilting down (manual tilt models) Place the tilt lock lever in the lock posi- tion. ZMU05580 Push the tilt support knob into the clamp bracket support engine. WARNING! After tilting the outboard motor, be sure to support it with the ZMU05541 tilt support knob or tilt support lever.
Operation EMU44620 EMU28063 Shallow water Procedure for tilting down (power tilt models) EMU28074 Cruising in shallow water (manual tilt Push the power tilt switch “ ” (up) until models) the outboard motor is supported by the tilt rod and the tilt support knob becomes EWM01782 WARNING free.
Operation shift lever in neutral. control lever / gear shift lever in neutral. Place the tilt lock lever in the lock/down position, then slightly tilt the outboard motor up until the tilt support bar auto- matically returns to the free position. ZMU03087 ZMU05541 Slowly lower the outboard motor to the...
Operation ter. Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (see page 14) 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.
Leaking fuel is a fire hazard. When such as a transom saver bar. Consult your transporting and storing the outboard Yamaha dealer for further details. motor, disconnect the fuel line from the outboard motor to prevent fuel from EMU32031 Dismounting the outboard motor leaking.
2. Handgrip outboard motor to protect it from damage. EMU28242 Storing outboard motor When storing your Yamaha outboard motor for prolonged periods of time (2 months or longer), several important procedures must be performed to prevent excessive damage. It is advisable to have your outboard motor serviced by an authorized Yamaha dealer prior to storage.
Maintenance 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 trou- ble.
Change the gear oil. For instructions, see page 71. Check the gear oil for the presence of water that indicates a leaky seal. Seal replacement should be per- formed by an authorized Yamaha dealer prior to use. Lubricate all grease fittings. For further ZMU05556 details, see page 64.
Maintenance cessories are available from your Yamaha dealer. EMU34152 Severe operating conditions Severe operating conditions involve one or more of the following types of operation on a regular basis: Operating continuously at or near maxi- mum engine speed (rpm) for many hours Operating continuously at a low engine ...
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 Page 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Inspection or Fuel filter (can be replacement as disassembled) necessary Fuel line Inspection — Inspection or Fuel line replacement as —...
Maintenance F9.9HE, F15CE, F15CEP, F20BE, F20BEP ZMU05595 Yamaha dealer. You should periodically re- EMU44850 Cleaning and adjusting spark plug move and inspect the spark plug because The spark plug is an important engine com- heat and deposits will cause the spark plug ponent and is easy to inspect.
DPR6EB-9 replace it. For cleaning or replacement of the fuel filter, consult your Yamaha dealer. 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;...
For idle speed specifications, see page 9. If you have difficulty verifying the idle speed, or the idle speed requires ad- justment, consult a Yamaha dealer or other qualified mechanic. ZMU05554 EMU38807 Changing engine oil Start the engine.
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Consult your Add the correct amount of oil through the Yamaha dealer if the oil level is out of filler hole. Put back the filler cap and the specified level.
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. EMU29116...
Maintenance sion from cavitation or ventilation, or other 4. Propeller damage. 5. Thrust washer Check the propeller shaft for damage. Remove propeller, washer Check the splines for wear or damage. equipped), and thrust washer. Check for fish line tangled around the pro- ...
Insert a new cotter pin can indicate lower unit problem. Con- in the hole and bend the cotter pin ends. sult your Yamaha dealer. NOTICE: Do not reuse the cotter pin. [ECM01901] Otherwise, the propeller can come off during operation.
9 Nm (0.92 kgf-m, 6.6 ft-lb) amount of metal particles, the gear case may be damaged. Have a EMU29304 Yamaha dealer check and repair the Cleaning fuel tank outboard motor. [ECM00714] EWM00921 TIP:...
Clean the filter (located on the end of the anodes on equipped models. Consult a suction pipe) in a suitable cleaning sol- Yamaha dealer for inspection and replace- vent. Allow the filter to dry. ment of internal anodes attached to the pow- Replace the gasket with a new one.
2. Black cable tery’s charge. If the battery needs charg- 3. Battery ing, consult your Yamaha dealer. The electrical contacts of the battery and Check the battery connections. They cables must be clean and properly con-...
Q. Has fuel pump malfunctioned? If your outboard motor requires repair, bring A. Have serviced by a Yamaha dealer. it to your Yamaha dealer. If the engine trouble-alert indicator is flash- Q. Are spark plug(s) fouled or of incorrect ing, consult your Yamaha dealer.
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Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Is fuel joint connection incorrect? 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 A. Have serviced by a Yamaha dealer. other obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
EWM00632 Q. Is steering pivot loose or damaged? WARNING A. Tighten or have serviced by a Yamaha Substituting an incorrect fuse or a piece dealer. of wire could allow excessive current EMU29434 flow.
Trouble Recovery ZMU05565 1. Manual valve screw 1. Fuse puller 2. Cap Put the engine in the desired position, 3. Fuse (20 A) then tighten the manual valve screw by 4. Spare fuse (20 A) turning it clockwise. EMU29534 Starter will not operate If the starter mechanism does not operate (the engine cannot be cranked with the start- er), the engine can be started with an emer-...
Trouble Recovery 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 forward. Make sure no one is standing behind ...
Trouble Recovery repeat the procedure. If the engine fails to start after 4 or 5 tries, open the throttle a small amount (between 1/8 and 1/4) and try again. Also if the engine is warm and fails to start, open the throttle a same amount and try to start the engine again.
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Trouble Recovery ZMU05613 ZMU05615 Secure the electrical system plate by tightening the bolt(s), and fix the plate. ZMU05624 Remove the starter/flywheel cover after ZMU05616 removing the bolt(s). Prepare the engine for starting. For fur- ther information, see page 38. Be sure that the gear shift is in neutral and that the clip is attached to the engine shut-off switch.
EMU33502 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise ON START some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the outboard motor until it has been com- pletely inspected.
INDEX Emergency starting engine (manual starter model) ........80 Alcohol and drugs ........2 Emergency, temporary action in ... 78 Alert indicator........25 Engine, checking ........35 Alert system .......... 27 Engine oil ..........34 Anode(s), inspecting and replacing ..73 Engine oil, changing ......
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INDEX Power tilt unit ........24 Power tilt will not operate ...... 79 Key number ..........4 Propeller ..........1 Propeller, checking ....... 69 Propeller, installing ....... 70 Laws and regulations......3 Propeller, removing....... 70 Low oil pressure alert......27 Propeller selection ........
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INDEX Tilt support bar........24 Tilt support knob ........24 Top cowling, installing......35 Top cowling, removing......33 Transporting and storing outboard motor ..........55 Trimming outboard motor ..... 46 Trim rod (tilt pin)........23 Trim tab..........23 Troubleshooting ........75 Warming up engine.......
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