Therefore some items may not tain maximum enjoyment from your new apply to every model. Yamaha. If you have any question about the EMU25110 operation or maintenance of your outboard motor, please consult a Yamaha dealer.
Table of contents General information ......1 Choke knob for pull type ....18 Manual starter handle ..... 18 Identification numbers record..1 Starter button ........19 Outboard motor serial number ..1 Main switch ........19 Key number........1 Power tilt switch ......
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MOTOR Maintenance chart (additional)..58 THREE-YEAR LIMITED Greasing ......... 59 WARRANTY ....... 83 Cleaning and adjusting spark IMPORTANT WARRANTY plug ..........61 INFORMATION IF YOU USE Checking fuel system ...... 61 YOUR YAMAHA OUTSIDE THE Inspecting fuel filter ......62...
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Table of contents USA OR CANADA ...... 85...
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 particular label. ZMU05159 ZMU04949 EMU25262 Manufactured date label 1. Star labels location This label is attached to the clamp bracket or the swivel bracket. EMU25280 One Star—Low Emission The one-star label identifies engines that meet the Air Resources Board’s 2001 ex- haust emission standards.
General information the outboard should be equal to or less than the rated horsepower capacity of the boat. If the rated horsepower capacity of the boat is unknown, consult the dealer or boat manufacturer. Do not modify the outboard. Modifications could make the motor unfit or unsafe to use.
Do not touch or remove electrical parts Never illegally discard (dump) the product. when starting or during operation. Yamaha recommends consulting the deal- Keep hands, hair, and clothes away er on discarding the product. from flywheel and other rotating parts Be informed about boating safety.
General information EMU25431 same as the International Rules of the Road. Label The rules presented here in your Owner’s EWM01300 Manual are condensed, and have been pro- WARNING vided for your convenience only. Consult This engine is equipped with a neutral your local U.S.
General information tion and collision, and to any special circum- of collision, neither of you has the right-of- stances, which may render a departure from way! Both of you should alter course to avoid the above rules necessary in order to avoid an accident.
General information other vessel is expected to maintain its fishing vessel. course and speed. You must stay out of its In a narrow channel, a sailing vessel way until you are clear of it. Likewise, if an- should not hamper the safe passage of other vessel is passing you, you should a power-driven vessel which can navi- maintain your speed and direction so that the...
General information ZMU01708 EMU25540 away from sparks, flames, or other Fueling instructions sources of ignition. EWM00010 Stop engine before refueling. WARNING Refuel in a well-ventilated area. Refuel GASOLINE AND ITS VAPORS ARE HIGH- portable fuel tanks off the boat. LY FLAMMABLE AND EXPLOSIVE! Take care not to spill gasoline.
10% and CAUTION: the fuel meets minimum octane ratings. All 4-stroke engines are shipped from the Yamaha does not recommended gasohol factory without engine oil. containing methanol because it can cause fuel system damage or engine performance...
18 volts or 3. Type of propeller (propeller mark) higher with the above models. Consult your NOTE: Yamaha dealer for details on installing an optional Rectifier Regulator. Select a propeller which will allow the engine EMU25742...
Basic components EMU25796 Main components NOTE: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. F9.9MH, F9.9ER, F15MH, F15EH, F15PR, F15PH 14 15 ZMU04951 1. Top cowling 15. Tiller handle* 2.
Basic components tions. 1. Power trim and tilt switch 2. Remote control lever 1. Fuel joint 3. Neutral interlock trigger 2. Fuel gauge 4. Neutral throttle lever 3. Fuel tank cap 5. Main switch / choke switch 4. Air vent screw 6.
Basic components 6. Throttle 7. Fully open EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral in- terlock trigger up. 1. Fully open 2. Fully closed EMU26221 Choke switch To activate the choke system, press in the main switch while the key is turned to the “...
Basic components ZMU01997 ZMU04878 1. Forward “ ” 2. Neutral “ ” 3. Reverse “ ” EMU25941 Throttle grip The throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed. ZMU04879 EMU25922 Gear shift lever Pulling the gear shift lever towards you puts...
Basic components ZMU02000 When constant speed is desired, tighten the 1. Throttle indicator adjuster to maintain the desired throttle set- EMU25970 ting. Throttle friction adjuster EMU25990 Engine stop lanyard switch A friction device provides adjustable resis- tance to movement of the throttle grip or the The lock plate must be attached to the en- remote control lever, and can be set accord- gine stop switch for the engine to run.
Basic components NOTE: The engine cannot be started with the lock plate removed. ZMU02083 EMU26011 Choke knob for pull type To supply the engine with the rich fuel mix- ZMU02003 ture required to start, pull out this knob. 1. Lanyard 2.
Basic components EMU26080 EMU26102 Starter button Power tilt switch To start the engine with the electric starter, The power tilt system adjusts the outboard push the starter button. motor angle in relation to the transom. Push- ing the switch “ ”...
Basic components switch, see pages 38 and 41. EMU26110 Steering friction adjuster A friction device provides adjustable resis- tance to the steering mechanism, and can be set according to operator preference. An ad- juster lever is located on the bottom of the tiller handle bracket.
Basic components starboard side “B” in the figure. ECM00840 CAUTION: The trim tab also serves as an anode to protect the engine from electrochemical corrosion. Never paint the trim tab as it will become ineffective as an anode. ZMU02008 1. Tilt lock lever To lock it, set the tilt lock lever in the “...
Basic components ZMU02009 ZMU02078 EMU26360 1. Top cowling lock lever(s) Power tilt unit This unit tilts the outboard motor up and EMU26460 Flushing device down and is controlled with the power tilt This device is used to clean the cooling wa- switch.
ECM00090 CAUTION: Do not continue to operate the engine if a warning device has activated. Consult your Yamaha dealer if the problem can- not be located and corrected. EMU26813 Overheat warning This engine has an overheat warning device. If the engine temperature rises too high, the ZMU03026 warning device will activate.
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Check the oil level and add oil as needed. If the oil level is correct and the warning device does not switch off, consult your Yamaha dealer. ECM00100 CAUTION: Do not continue to run the engine if the low oil pressure warning indicator is on.
Operation EMU26901 specific boat and motor combination. Installation EWM00830 ECM00110 WARNING CAUTION: Improper mounting of the outboard mo- Incorrect engine height or obstructions tor could result in hazardous conditions to smooth water flow (such as the design such as poor handling, loss of control, or or condition of the boat, or accessories fire hazards.
Other- termine the optimum mounting height. wise the engine could be completely lost Consult your Yamaha dealer or boat man- if it accidentally falls off the transom. ufacturer for further information on deter- mining the proper mounting height.
Check fuel line connections to be sure they ECM00800 CAUTION: are tight (if equipped Yamaha fuel tank or Failure to follow the break-in procedure boat tank). could result in reduced engine life or Be sure the fuel tank is positioned on a se- even severe engine damage.
Yamaha recommends the use of 1. Lower level mark Ring Free Fuel Additive, available from 2. Oil dipstick your Yamaha dealer. Ring Free Fuel Addi- 3. Upper level mark tive has repeatedly proven its ability to clean combustion deposits from inside the engine,...
Operation EMU27450 line to the joint on the fuel tank. Operating engine EMU27461 Feeding fuel (portable tank) EWM00420 WARNING 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.
Operation EMU27490 lanyard where it could become entan- Starting engine gled, preventing it from functioning. EMU27505 Avoid accidentally pulling the lanyard Manual start models (tiller control) during normal operation. Loss of en- Place the gear shift lever in neutral. gine power means the loss of most steering control.
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Operation ZMU02355 ZMU02030 NOTE: NOTE: When the engine is cold, it needs to be It is not necessary to use the choke when warmed up. For further information, see starting a warm engine. page 35. If the choke knob is left in the “ ”...
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Operation ZMU02026 ZMU04881 Place the throttle grip in the “ ” NOTE: (start) position. After the engine starts, The start-in-gear protection device prevents return the throttle to the fully closed po- the engine from starting except when in neu- sition. tral.
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Operation If the choke knob is left in the “ ” repeat the procedure. If the engine fails to (start) position while the engine is running, start after 4 or 5 tries, open the throttle a the engine will run poorly or stall. small amount (between 1/8 and 1/4) and try again.
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Operation gine 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. ZMU02314 NOTE: On remote controls equipped with a neu- tral throttle lever, a good starting point is to lift the lever just until you feel resistance, then lift slightly more.
Otherwise serious en- gine damage could occur. Check the oil level and add oil if necessary. Consult your Yamaha dealer if the cause for the low oil pressure warning indicator can- not be found. A continuous flow of water from the pi-...
Operation you. ECM00220 CAUTION: To change the boat direction or shifting position from forward to reverse or vice- versa, first close the throttle so that the engine idles (or runs at low speeds). EMU27763 Forward (tiller handle and remote ZMU04882 control models) Remote control models Tiller control models...
Operation ZMU02030 ZMU04883 On models equipped with a tilt lock le- Remote control models ver, check that it is in the lock/down po- Check that the tilt lock lever is in the lock sition. position. ZMU02086 ZMU02086 Move the gear shift lever quickly and Pull up the neutral interlock trigger (if firmly from neutral to reverse.
Operation ping the engine immediately after operating at high speed is not recommended. EMU27844 Procedure Push and hold the engine stop button or turn the main switch to “ ” (off). ZMU02041 Remove the key if the boat will be left unattended.
Operation Reposition the rod in the desired hole. To raise the bow (“trim-out”), move the rod away from the transom. To lower the bow (“trim-in”), move the rod to- ward 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.
Operation only when the boat is at a complete stop with the engine off. To lower the bow (“trim-in”), tilt the engine down. Tilt the engine to the desired angle using the Make test runs with the trim set to different power tilt switch.
Operation salt corrosion. EWM00220 WARNING Be sure all people are clear of the out- board motor when tilting up and down, also be careful not to pinch any body parts between the drive unit and engine bracket. EWM00250 WARNING Bow Down Leaking fuel is a fire hazard.
Operation ZMU02078 ZMU04881 EMU28005 Disconnect the fuel line from the out- Procedure for tilting up board motor. Power trim and tilt models / power tilt models Place the remote control lever / the gear shift lever in neutral. ZMU02042 Place the tilt lock lever (if equipped) in the release/up position.
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Operation ZMU02042 ZMU04900 Press the power trim and tilt switch / Push the tilt support knob into the clamp power tilt switch “ ” (up) until the out- bracket or pull the tilt support lever to- board motor has tilted up completely. ward you to support the engine.
Operation from marine growth and corrosion which Push the power tilt / power trim and tilt could damage the power trim and tilt switch “ ” (down) to lower the outboard mechanism. motor to the desired position. EMU30190 Procedure for tilting down (manual tilt models) Place the tilt lock lever in the lock posi- tion.
Operation EMU28071 Cruising in shallow water (manual tilt models) EWM00710 WARNING Place the gear shift in neutral before us- ing the shallow water cruising system. Run the boat at the lowest possible speed when using the shallow water cruising system. The tilt lock mecha- ZMU02047 nism does not work while the shallow EMU28123...
Operation ZMU02048 ZMU04881 Place the tilt lock lever in the release/up Slightly tilt the outboard motor up until position. the tilt support bar automatically returns to the free position. Slowly lower the outboard motor to the normal position. EMU28090 Power trim and tilt models / power tilt models The outboard motor can be tilted up partially to allow operation in shallow water.
ZMU01935 For cooling system flushing instructions, see page 51. Cruising in turbid water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (not available for some models) if you use the outboard motor in turbid (muddy) water...
Engine oil drain bolt: sition using a motor support device such as 28.0 Nm (20.7 ft-lb) (2.86 kgf-m) a transom saver bar. Consult your Yamaha Engine oil filter: dealer for further details. 18.0 Nm (13.3 ft-lb) (1.84 kgf-m)
Place a towel or something similar under the 12-00) to each gallon of fuel. outboard motor to protect it from damage. NOTE: The use of “Yamaha Fuel Conditioner and EMU28241 Storing outboard motor Stabilizer” eliminates the need to drain the When storing your Yamaha outboard motor fuel system.
Seal replacement should be performed Cooling system flushing is essential to by an authorized Yamaha dealer prior to prevent the cooling system from clog- use. ging up with salt, sand, or dirt. In addi- Grease all grease fittings.
Wax the cowling with a non-abrasive ways apply. Consult your battery wax such as “Yamaha Silicone Wax” manufacturer’s instructions. (Part No. ACC-11000-15-02). Procedure EMU28430 Disconnect and remove the battery from Battery care the boat. Always disconnect the black...
If necessary, clean ECM00540 and paint the areas. A touch-up paint is avail- CAUTION: able from your Yamaha dealer. Do not leave the garden hose connector loose on the bottom cowling fitting or let the hose hang free during normal opera-...
If you or the owner is not famil- iar with machine servicing, this work should be done by your Yamaha dealer or other qualified mechanic. Maintenance, replacement, or repair of the emission control devices and sys- tems may be performed by any marine engine repair establishment or individual.
When operating in salt water, turbid or muddy 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 50 hours Item...
Wipe off Instead, take the outboard motor to a any dirt from the threads and screw in the Yamaha dealer. You should periodically re- spark plug to the correct torque. move and inspect the spark plug because...
Check the fuel lines for leaks, crack, or mal- There will be fuel in the fuel filter. Keep function. If a problem is found, your Yamaha away from sparks, cigarettes, flames or dealer or other qualified mechanic should re- other sources of ignition.
A necessary. If any water is found in the flushing attachment or test tank can be fuel, the Yamaha portable fuel tank or used. other fuel tanks should be checked and A diagnostic tachometer should be used for cleaned.
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Maintenance stand. ECM00970 CAUTION: Do not overfill the oil, and be sure the outboard motor is upright (not tilted) when checking and changing the en- gine oil. If the oil level is above the upper level mark, drain until the level meets the ZMU02056 specified capacity.
Start the engine and check that no water leaks from the joints between the exhaust cover, cylinder head, and body cylinder. EMU29140 Engine oil leakage Check for oil leaks on the around the engine. NOTE: If any leaks are found, consult your Yamaha dealer. ZMU02058...
Check that the trim and tilt rod / the tilt rod is free of corrosion or other flaws. Tilt the outboard motor down. Check that the trim and tilt rod / the tilt rod oper- ates smoothly. NOTE: Consult your Yamaha dealer if any operation...
Maintenance EMU30660 Removing the propeller EMU29194 Spline models Straighten the cotter pin and pull it out using a pair of pliers. Remove the propeller nut, washer, and spacer (if equipped). ZMU01897 Checkpoints Check each of the propeller blades for wear, erosion from cavitation or ventila- tion, or other damage.
NOTE: ly falls. For disposal of used oil consult your Yamaha Tilt the outboard motor so that the gear dealer. oil drain screw is at the lowest point pos- With the outboard motor in a vertical po- sible.
If you have any question about properly F15MH 250.0 cm (8.45 US oz) (8.82 doing this procedure, consult your Imp.oz) Yamaha dealer. F15PH 250.0 cm (8.45 US oz) (8.82 Keep away from sparks, cigarettes, Imp.oz) flames, or other sources of ignition F15PR 250.0 cm...
EMU29312 Inspecting and replacing anode(s) Yamaha outboard motors are protected from corrosion by sacrificial anodes. Inspect the ZMU02924 external anodes periodically. Remove scales from the surfaces of the anodes. Consult a Yamaha dealer for replacement of external anodes.
(for example: welding charge the battery when it is low. equipment, lighted cigarettes, and so NOTE: on.) Consult a Yamaha dealer when charging or DO NOT SMOKE when charging or han- re-charging batteries. dling batteries. EMU29331 KEEP BATTERIES AND ELECTROLYTIC Connecting the battery FLUID OUT OF REACH OF CHILDREN.
EMU29390 Checking top cowling Check the fitting of the top cowling by push- ing it with both hands. If it is loose have it re- paired by your Yamaha dealer. ZMU02068 EMU29400 Coating the boat bottom A clean hull improves boat performance. The boat bottom should be kept as clean of ma- rine growth as possible.
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 warning indicator is Q. Are spark plug(s) fouled or of incorrect flashing, 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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Trouble Recovery A. Have serviced by a Yamaha dealer. Q. Are weeds or other foreign matter tangled on gear housing? Q. Is load on boat improperly distributed? A. Remove foreign matter and clean lower A. Distribute load to place boat on an even unit.
EWM00630 Q. Is steering pivot loose or damaged? WARNING A. Tighten or have serviced by a Yamaha Be sure to use the specified fuse. An in- dealer. correct fuse or a piece of wire could allow EMU29432 excessive current flow.
Make sure the remote control lever NOTE: is in neutral. Otherwise the boat could Consult your Yamaha dealer if the new fuse unexpectedly start to move, which immediately blows again. could result in an accident.
Trouble Recovery engine is running. Do not install the starter mechanism or top cowling after the engine is running. Do not touch the ignition coil, spark plug wire, spark plug cap, or other elec- trical components when starting or op- erating the motor.
EMU29760 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immedi- ately. If you cannot immediately take the outboard motor to a Yamaha dealer, follow the proce- dure below in order to minimize engine dam- age.
Consumer information EMU29841 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA...
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Printed in Japan May 2005–0.6 × 1 ! Printed on raecycled paper...
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(A l’usage du concessionnaire) MODÉLE ET NO. DE SÉRIE DU MOTEUR HORS-BORD (sur l’étiquette d’identification de la presse de fixation) YAMAHA DEALER NUMBER NO. DU CONCESSIONNAIRE YAMAHA DEALER NAME YAMAHA MOTOR CO., LTD. NOM DU MADE IN JAPAN CONCESSIONNAIRE PAYS D'ORIGINE JAPON USAGE...
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PLACE POSTAGE HERE ATTN: WARRANTY DEPARTMENT...