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Yamaha 15F Owner's Manual

Summary of 15F

  • Page 1

    Owner’s manual 9.9f 15f 63v-28199-78-e0 u63v78e0.Book page 1 monday, march 6, 2006 10:05 am.

  • Page 2

    Read this owner’s manual carefully before operating your outboard motor. U63v78e0.Book page 1 monday, march 6, 2006 10:05 am.

  • Page 3

    Important manual information emu25101 to the owner thank you for choosing a yamaha outboard motor. This owner’s manual contains infor- mation needed for proper operation, mainte- nance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your ne...

  • Page 4

    Important manual information emu25120 9.9f, 15f owner’s manual ©2006 by yamaha motor co., ltd. 1st edition, january 2006 all rights reserved. Any reprinting or unauthorized use without the written permission of yamaha motor co., ltd. Is expressly prohibited. Printed in japan u63v78e0.Book page 2 mon...

  • Page 5: Table Of Contents

    Table of contents general information .......................... 1 identification numbers record .......... 1 outboard motor serial number ........... 1 ec label........................................... 1 safety information ........................... 1 important labels...............................

  • Page 6: Table Of Contents

    Table of contents storing outboard motor..................... 27 procedure......................................... 28 lubrication (except oil injection models) ......................................... 29 cleaning the outboard motor............ 29 checking painted surface of motor... 29 periodic ma...

  • Page 7: General Information

    General information 1 emu25170 identification numbers record emu25183 outboard motor serial number the outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. Record your outboard motor serial number in the spaces provided to assist you in ordering spare ...

  • Page 8: General Information

    General information 2 ● do not modify the outboard. Modifications could make the motor unfit or unsafe to use. ● incorrect propeller selection and incorrect use may not only cause engine damage, but also adversely affect fuel consumption. Consult your dealer for correct use. ● never operate after dr...

  • Page 9: General Information

    General information 3 emu25382 important labels emu25395 warning labels emu25401 label warning ewm01260 ● be sure shift control is in neutral before starting engine. (except 2hp) ● do not touch or remove electrical parts when starting or during operation. ● keep hands, hair, and clothes away from fl...

  • Page 10: General Information

    General information 4 emu25742 propeller selection the performance of your outboard motor will be critically affected by your choice of propel- ler, as an incorrect choice could adversely af- fect performance and could also seriously damage the motor. Engine speed depends on the propeller size and b...

  • Page 11: Basic Components

    Basic components 5 emu25797 main components note: * may not be exactly as shown; also may not be included as standard equipment on all models. Emu25802 fuel tank if your model was equipped with a portable fuel tank, its function is as follows. Warning ewm00020 the fuel tank supplied with this engine...

  • Page 12: Basic Components

    Basic components 6 emu25830 fuel joint this joint is used to connect the fuel line. Emu25841 fuel gauge this gauge is located on either the fuel tank cap or on the fuel joint base. It shows the ap- proximate amount of fuel remaining in the tank. Emu25850 fuel tank cap this cap seals the fuel tank. W...

  • Page 13: Basic Components

    Basic components 7 emu25961 throttle indicator the fuel consumption curve on the throttle in- dicator shows the relative amount of fuel con- sumed for each throttle position. Choose the setting that offers the best performance and fuel economy for the desired operation. Emu25971 throttle friction ad...

  • Page 14: Basic Components

    Basic components 8 ● avoid accidentally pulling the lanyard 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 people and objects in the boat to be thrown forward. Note: the engine cannot be...

  • Page 15: Basic Components

    Basic components 9 emu26122 steering friction adjuster a friction device provides adjustable resis- tance to the steering mechanism, and can be set according to operator preference. An ad- justing screw or bolt is located on the swivel bracket. To increase resistance, turn the adjuster clockwise. To...

  • Page 16: Basic Components

    Basic components 10 emu26410 2-pin connector ac 12 v-40/60/80w power is delivered through this connector. When using it, keep in mind the following points: ● use a genuine yamaha connector. ● use lighting equipment only. ● connect lighting equipment directly to the 2-pin connector. ● capacity of the...

  • Page 17: Operation

    Operation 11 emu26901 installation caution: ecm00110 incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or depth finder trans- ducers) can create airborne water spray while the boat is cruising. Severe eng...

  • Page 18: Operation

    Operation 12 tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the en- gine to overheat. If the mounting height is too low, the water resistance will increase and thereby reduce engine efficiency. Mount the outboard m...

  • Page 19: Operation

    Operation 13 3. Secure the clamp bracket to the transom using the bolts provided with the out- board (if packed). For details, consult your yamaha dealer. Warning ewm00650 avoid using bolts, nuts or washers other than those contained in the engine pack- aging. If used, they must be of at least the s...

  • Page 20: Operation

    Operation 14 emu27102 preoperation checks warning ewm00080 if any item in the preoperation check is not working properly, have it inspected and repaired before operating the outboard motor. Otherwise an accident could occur. Caution: ecm00120 do not start the engine out of water. Over- heating and s...

  • Page 21: Operation

    Operation 15 if equipped with a portable fuel tank 1. Pour oil into the portable fuel tank, and then add gasoline. 2. Replace the fuel tank cap and close tight- ly. 3. Shake the fuel tank to mix the fuel thor- oughly. 4. Make sure that the oil and gasoline are mixed. If equipped with a built-in fuel...

  • Page 22: Operation

    Operation 16 drowsiness. Keep cockpit and cabin ar- eas well ventilated. Avoid blocking ex- haust outlets. 1. If there is an air vent screw on the fuel tank cap, loosen it 2 or 3 turns. 2. If there is a fuel joint on the motor, firmly connect the fuel line to the joint. Then firmly connect the other...

  • Page 23: Operation

    Operation 17 2. Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg. Then install the lock plate on the other end of the lanyard into the en- gine stop switch. Warning ewm00120 ● attach the engine stop switch lanyard to a secure place on your clothing, or you...

  • Page 24: Operation

    Operation 18 6. After the engine starts, slowly return the manual starter handle to its original posi- tion before releasing it. 7. Slowly return the throttle grip to the fully closed position. Note: ● when the engine is cold, it needs to be warmed up. For further information, see page 18. ● if the ...

  • Page 25: Operation

    Operation 19 emu27764 forward (tiller handle and remote con- trol models) tiller handle models 1. Place the throttle grip in the fully closed position. 2. Move the gear shift lever quickly and firm- ly from neutral to forward. Remote control models pull up the neutral interlock trigger (if equipped)...

  • Page 26: Operation

    Operation 20 2. Pull up the neutral interlock trigger (if equipped) and move the remote control lever quickly and firmly from neutral to re- verse. Emu27820 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 aft...

  • Page 27: Operation

    Operation 21 emu27872 adjusting trim angle for manual tilt models there are 4 or 5 holes provided in the clamp bracket to adjust the outboard motor trim an- gle. 1. Stop the engine. 2. Tilt the outboard motor up, and then re- move the trim rod from the clamp bracket. 3. Reposition the rod in the des...

  • Page 28: Operation

    Operation 22 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 drag. Excessive trim-out can also cause the propeller to ventilate, which reduces perfor- mance furthe...

  • Page 29: Operation

    Operation 23 caution: ecm00241 ● before tilting the outboard motor, stop the engine by following the procedure on page 20. Never tilt the outboard mo- tor while the engine is running. Severe damage from overheating can result. ● do not tilt up the engine by pushing the tiller handle (if equipped) be...

  • Page 30: Operation

    Operation 24 2. Slightly tilt the engine up until the tilt sup- port bar is automatically released. 3. Slowly tilt the engine down. Emu28060 cruising in shallow water the outboard motor can be tilted up partially to allow operation in shallow water. Emu28071 cruising in shallow water (manual tilt mo...

  • Page 31: Operation

    Operation 25 3. Slightly tilt the outboard motor up. The tilt support bar will lock automatically, sup- porting the outboard motor in a partially raised position. Note: this outboard motor has 2 positions for shal- low water cruising. 4. To return the outboard motor to the nor- mal running position,...

  • Page 32: Maintenance

    Maintenance 26 emu31480 specifications note: “(al)” stated in the specification data below represents the numerical value for the alumi- num propeller installed. Likewise, “(sus)” represents the value for stainless steel propeller installed and “(pl)” for plastic propeller installed. Emu28218 dimens...

  • Page 33: Maintenance

    Maintenance 27 emu28222 transporting and storing out- board motor warning ewm00690 ● leaking fuel is a fire hazard. When trans- porting and storing the outboard motor, close the air vent screw and fuel cock to prevent fuel from leaking. ● use care when transporting fuel tank, whether in a boat or ca...

  • Page 34: Maintenance

    Maintenance 28 caution: ecm01411 ● 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. ● store the outboard motor in a dry, well- ventilated place, not in direct...

  • Page 35: Maintenance

    Maintenance 29 8. Remove the outboard motor from the test tank. 9. Install the silencer cover/cap of fogging hole and top cowling. 10. If the “fogging oil” is not available, run the engine at a fast idle until the fuel sys- tem becomes empty and the engine stops. 11. Drain the cooling water complete...

  • Page 36: Maintenance

    Maintenance 30 emu28522 maintenance chart frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelines. Refer to the sections in this chapter for expla- nations of each owner-specific action. Note: when operating in salt ...

  • Page 37: Maintenance

    Maintenance 31 emu28940 greasing yamaha grease a (water resistant grease) yamaha grease d (corrosion resistant grease; for propeller shaft) emu28952 cleaning and adjusting spark plug warning ewm00560 when removing or installing a spark plug, be careful not to damage the insulator. A damaged insulato...

  • Page 38: Maintenance

    Maintenance 32 should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. If electrode erosion becomes ex- cessive, or if carbon and other deposits are excessive, you should replace the spark plug with another of the corr...

  • Page 39: Maintenance

    Maintenance 33 emu28980 inspecting fuel filter warning ewm00310 gasoline is highly flammable, and its va- pors are flammable and explosive. ● if you have any question about properly doing this procedure, consult your yamaha dealer. ● do not perform this procedure on a hot or running engine. Allow th...

  • Page 40: Maintenance

    Maintenance 34 caution: ecm00490 this procedure must be performed while the outboard motor is in the water. A flush- ing attachment or test tank can be used. A diagnostic tachometer should be used for this procedure. Results may vary depending on whether testing is conducted with the flushing attach...

  • Page 41: Maintenance

    Maintenance 35 checkpoints ● check each of the propeller blades for wear, erosion from cavitation or ventilation, or other damage. ● check the propeller shaft for damage. ● check the splines / shear pin for wear or damage. ● check for fish line tangled around the pro- peller shaft. ● check the prope...

  • Page 42: Maintenance

    Maintenance 36 2. Install the spacer (if equipped), thrust washer, and propeller on the propeller shaft. 3. Install the spacer (if equipped) and the washer. Tighten the propeller nut to the specified torque. 4. Align the propeller nut with the propeller shaft hole. Insert a new cotter pin in the hol...

  • Page 43: Maintenance

    Maintenance 37 6. Put a new gasket on the oil level plug. When the oil begins to flow out of the oil level plug hole, insert and tighten the oil level plug. 7. Put a new gasket on the gear oil drain screw. Insert and tighten the gear oil drain screw. Emu29302 cleaning fuel tank warning ewm00920 gaso...

  • Page 44: Maintenance

    Maintenance 38 caution: ecm00720 do not paint anodes, as this would render them ineffective. Note: inspect ground leads attached to external an- odes on equipped models. Consult a yamaha dealer for inspection and replacement of inter- nal anodes attached to the power unit. Emu29390 checking top cowl...

  • Page 45: Trouble Recovery

    Trouble recovery 39 emu29424 troubleshooting a problem in the fuel, compression, or ignition systems can cause poor starting, loss of pow- er, or other problems. This section describes basic checks and possible remedies, and cov- ers all yamaha outboard motors. Therefore some items may not apply to ...

  • Page 46: Trouble Recovery

    Trouble recovery 40 a. Check for pinched or kinked fuel line or oth- er obstructions in fuel system. Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Have ignition parts failed? A. Have serviced by a yamaha dealer. Q. Ha...

  • Page 47: Trouble Recovery

    Trouble recovery 41 q. Is load on boat improperly distributed? A. Distribute load to place boat on an even plane. Q. Is water pump or thermostat faulty? A. Have serviced by a yamaha dealer. Q. Is there excess water in fuel filter cup? A. Drain filter cup. Engine power loss. Q. Is propeller damaged? ...

  • Page 48: Trouble Recovery

    Trouble recovery 42 a. Connect correctly. Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with rec- ommended type. Q. Is high pressure fuel pump drive belt bro- ken? A. Have serviced by a yamaha dealer. Q. Is engine not responding properly to shift lever position? A. H...

  • Page 49: Trouble Recovery

    Trouble recovery 43 ● do not attach the lanyard to clothing that could tear loose. Do not route the cord where it could become entangled, preventing it from functioning. ● avoid accidentally pulling the lanyard during normal operation. Loss of engine power means the loss of most steering control. Al...

  • Page 50: Trouble Recovery

    Trouble recovery 44 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 immediate- ly. If you cannot immediately take the outboard motor to a yamaha dealer, follow the proce- dure below in order...

  • Page 51

    U63v78e0.Book page 45 monday, march 6, 2006 10:05 am.

  • Page 52

    Yamaha motor co., ltd. Printed on recycled paper printed in japan march 2006–2.8 × 1 cr u63v78e0.Book page 1 monday, march 6, 2006 10:05 am.