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  5. Owner's Manual

Yamaha F115C Owner's Manual

Summary of F115C

  • Page 1

    Printed in japan march 2003-1.3 × 1 ! 68v-28199-14 (f115aet, fl115aet) (e) printed on recycled paper f115c lf115c owner’s manual u.S.A.Edition lit-18626-05-41 68v-9-14 hyoshi 2/20/03 13:16 page 1 www.Reelschematic.Com.

  • Page 2

    68v-9-14 hyoshi 2/20/03 13:16 page 2 www.Reelschematic.Com.

  • Page 3

    E 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 new yamaha. If you have any question about the oper...

  • Page 4

    E contents general information basic components operation maintenance trouble recovery index 1 2 3 4 5 6 read this owner’s manual carefully before operating your outboard motor. Emu00003 68v-9-14-1 2/20/03 14:12 page 3 www.Reelschematic.Com.

  • Page 5

    E emu00004 chapter 1 general information identification numbers record ....................................................1-1 outboard motor serial number...........1-1 key number...........................................1-1 emission control information...1-2 safety information.......................

  • Page 6

    1-1 e emu00005 identification numbers record emu00007 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 num- ber in the spaces provided to assist you in ordering spare parts from you...

  • Page 7

    1-2 e 000320 q w emu01385 emission control information emu01387 north american models this engine conforms to u.S. Environmental protection agency (epa) regulations for marine si engines. See the label affixed to your engine for details. Approval label of emission control certificate this label is a...

  • Page 8

    E 1-3 emu01389 star labels your outboard motor is labeled with a california air resources board (carb) star label. See below for a description of your particular label. 1 star label one star - low emission the one-star label identifies engines that meet the air resources board’s 2001 exhaust emissio...

  • Page 9

    E 1-4 emu00917 safety information 8 before mounting or operating the out- board motor, read this entire manual. Reading it should give you an under- standing of the motor and its operation. 8 before operating the boat, read any owner’s or operator’s manuals supplied with it and all labels. Be sure y...

  • Page 10

    E 1-5 8 when a swimmer is in the water near you shift into neutral and shut off the engine. 8 be informed about boating safety. Additional publications and information can be obtained from many organiza- tions, including the following: united states coast guard consumer affairs staff (g-bc) office o...

  • Page 11

    E 1-6 q w 000321 emu00014 important labels warning labels 1 2 (lf115tr) warning 8 be sure shift control is in neutral before starting engine. (except 2hp) 8 do not touch or remove electrical parts when starting or during operation. 8 keep hands,hair,and clothes away from flywheel and other rotating ...

  • Page 12

    E 1-7 stand-on vessel the vessel with the right-of-way has the duty to continue its course and speed, except to avoid an immediate collision. When you maintain your direction and speed, the other vessel will be able to determine how best to avoid you. Give-way vessel the vessel which does not have t...

  • Page 13

    E 1-8 keep the other vessel on your port (left) side. This rule doesn’t apply if both of you will clear one another if you continue on your set course and speed. Crossing when two power driven vessels are crossing each other’s path close enough to run the risk of collision, the vessel which has the ...

  • Page 14

    E 1-9 1. When the sailing vessel is overtaking the power-driven vessel, the power- driven vessel has the right-of-way. 2. Sailing vessels should keep clear of any fishing vessel. 3. In a narrow channel, a sailing vessel should not hamper the safe passage of a power-driven vessel which can navigate o...

  • Page 15

    E 1-10 1 1 a 1 1 proceeding toward head of navigation from seaward can buoy odd number. Leave to port. Or secondary channel buoys starts new numbering system old new c " 1" nun buoy even number. Leave to starboard n " 2" no change buoy color code black red green " a" " 2" " 1" " 3" " 4" " 5" " 7" n ...

  • Page 16

    E 1-11 emu00016 fueling instructions w gasoline and its vapors are high- ly flammable and explosive! 8 do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. 8 stop engine before refueling. 8 refuel in a well-ventilated area. Refuel portable fuel tanks off the ...

  • Page 17

    E 1-12 emu00027 gasohol there are two types of gasohol: gasohol containing ethanol and that containing methanol. Gasohol containing ethanol can be used if ethanol content does not exceed 10% and the fuel meets minimum octane ratings. Gasohol containing methanol is not recommended by yamaha because i...

  • Page 18

    E 1-13 c c all 4-stroke engines are shipped from the factory without engine oil. Emu01775 battery requirement c c do not use a battery that does not meet the specified capacity. If a battery which does not meet specifications is used, the electric system could perform poorly or be overloaded, causin...

  • Page 19

    E 1-14 emu01395 propeller selection the performance of your outboard motor will be critically affected by your choice of propeller, as an incorrect choice could adversely affect performance and could also seriously damage the motor. Engine speed depends on the propeller size and boat load. If engine...

  • Page 20

    E 1-15 note: at full throttle and under a maximum boat load, the engine’s rpm should be within the upper half of the full throttle operating range, as listed in “specifica- tions” on page 4-1. Select a propeller which fulfills this requirement. If operating under conditions which allow the engine’s ...

  • Page 21

    E emu00037 chapter 2 basic components main components..............................2-1 operations of controls and other functions ................................2-2 remote control .....................................2-2 trim tab .................................................2-7 power trim/tilt ...

  • Page 22

    Trip time batt km/h knot mph km mile speed yamaha set mode q w e r t y u i o w yamaha set mode p s mpg km/l gph i/h econ sync ttl fuel management !0 !1 !2 !3 !4 !5 !6 e 2-1 emu01206 main components 1 top cowling 2 top cowling lock levers 3 engine oil drain bolt 4 anti-cavitation plate 5 trim tab (an...

  • Page 23

    E 2-2 emu00039 operations of controls and other functions emu01273 remote control both the shifter and the throttle are actu- ated by the remote control lever. In addi- tion, the electrical switches are mounted on the remote control box. å side mount remote control box ∫ binnacle mount remote contro...

  • Page 24

    E 2-3 r n f q w e r t y u u t r y 701031 702032 q w e r r t t y y u u 000323 n 000324 q w emu00098 remote control lever moving the lever forward from the neutral position engages forward gear. Pulling the lever back from neutral engages reverse. The engine will contin- ue to run at idle until the le...

  • Page 25

    E 2-4 on start off 701021 on start off on start off 000325 000569 q w on start off on start off q w 000715 emu00101 main switch the main switch controls the ignition sys- tem; its operation is described below. 8 off electrical circuits switched off. (the key can be removed.) 8 on electrical circuits...

  • Page 26

    E 2-5 note: the engine cannot be started with the lock-plate removed. Up dn 701034 up dn dn up 000328 emu01112 power trim/tilt switches the power trim/tilt adjusts the motor angle in relation to the transom. The power trim/tilt switch is located on the remote control lever grip. Individual- engine s...

  • Page 27

    E 2-6 702043 35° q w e 701035 702035 emu00106 free accelerator to open the throttle without shifting into either forward or reverse, push the free accelerator button and turn the remote control lever. Note: 8 the free accelerator button can be oper- ated only when the remote control lever is in the ...

  • Page 28

    E 2-7 q w e 603014 a b 603012 emu00113 trim tab the trim tab should be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force. W an improperly adjusted trim tab may cause difficult steering. Always test run after the trim tab has been ins...

  • Page 29

    E 2-8 up down 000302 emu01125 power trim/tilt switch the power trim/tilt adjusts the motor angle in relation to the transom. The power trim/tilt switch is located on the side of the bottom engine cowling. Pushing the switch “up” trims the motor up, then tilts the motor up. Pressing the switch “dn” t...

  • Page 30

    E 2-9 q t w r 001081 e y u 001085 001058 emu01617 digital tachometer this gauge contains the tachometer, trim meter, hour meter, low oil pressure warn- ing indicator, and the overheat warning indicator. 1 tachometer 2 trim meter 3 hour meter 4 low oil pressure warning indicator 5 overheat warning in...

  • Page 31

    E 2-10 001059 emu01109 trim meter this meter shows the trim angle of your outboard motor. Note: 8 memorize the trim angles that work best for your boat under different condi- tions. Adjust the trim angle to the desired setting by operating the power trim and tilt switch. 8 if the trim angle of your ...

  • Page 32

    E 2-11 001060 q 001061 q emu01110 low oil pressure warning indicator if oil pressure drops too low, the warning indicator will start to blink. Refer to the section "low oil pressure warning" for details. 1 low oil pressure warning indicator c c 8 do not operate the engine without oil. Serious engine...

  • Page 33

    E 2-12 000329 trip time batt km/h knot mph km mile speed yamaha set mode q w e r q w e 000330 802034 trip time batt km/h knot mph km mile speed yamaha set mode emu00140 digital speedometer this meter contains the speedometer, fuel meter with warning, trip meter, clock and voltmeter with warning. 1 s...

  • Page 34

    E 2-13 000331 trip time batt km/h knot mph km mile speed yamaha set mode 000332 trip time batt km/h knot mph km mile speed yamaha set mode emu01274 trip meter this meter displays the distance the boat has traveled since the meter was last reset. Repeatedly push and release the “mode” button until th...

  • Page 35

    E 2-14 802032 trip time batt km/h knot mph km mile speed 802031 trip time batt km/h knot mph km mile speed yamaha set mode q w emu00144 fuel meter the fuel level is displayed by eight seg- ments. When all segments are showing, the fuel is full. C c the yamaha fuel tank sensor is different from a con...

  • Page 36

    E 2-15 yamaha set mode p s mpg km/l gph i/h econ sync ttl fuel management q w e 000333 p s mpg km/l gph i/h econ sync ttl fuel management 000334 yamaha p s gph i/h econ sync ttl fuel management set mode 000335 emu00146 fuel management meter optional equipment the meter contains the fuel flow meter, ...

  • Page 37

    E 2-16 note: 8 the meter displays gallon/hour and liter depending upon operator preference. Select the desired unit of measurement by setting the selector switch 1 on the back of the meter during installation. 8 fuel consumption meter and fuel econ- omy meter will indicate same unit of measurement. ...

  • Page 38

    E 2-17 note: 8 fuel consumption varies greatly with boat design, weight, propeller used, engine trim angle, sea conditions (including wind), and throttle position. Fuel consumption also varies slightly with the type of water (salt, fresh, and contaminate levels), air temperature and humidity, cleanl...

  • Page 39

    E 2-18 p s mpg km/l gph i/h econ sync ttl fuel management 000339 p s mpg km/l gph i/h econ sync ttl fuel management q w e r t 000340 p s mpg km/l gph i/h econ sync ttl fuel management 000341 403033 emu01278 twin engine speed synchronizer this meter displays the difference in engine speed (r/min) bet...

  • Page 40

    E 2-19 000342 000343 000365 q emu00163 top cowling lock levers to remove the engine top cowling, pull up the front and rear lock levers. Then lift off the cowling. When replacing the cowl- ing, check to be sure it fits properly in the rubber seal. Then lock the cowling again by moving the levers dow...

  • Page 41

    E 2-20 001132 701054 703026 off start off start on on 605015 emu00169 warning system c c do not continue to operate the engine if the warning device has activated. Consult your yamaha dealer if the problem can- not be located and corrected. Emu00171* overheat warning this engine has an overheat warn...

  • Page 42

    E 2-21 001133 701054 703026 off start off start on on emu00173* low oil pressure warning if oil pressure drops too low, the warning device will activate. ( 4); included (–); n/a if the warning system has been activated, stop the engine as soon as it is safe to do so. Check oil level and add oil as n...

  • Page 43

    E emu00174 chapter 3 operation installation ........................................3-1 mounting the outboard motor............3-2 breaking in (running in) engine...3-4 pre-operation checks ......................3-5 checking the engine oil level ..............3-6 filling fuel...........................

  • Page 44

    E 3-1 000366 emu00175 installation c c incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat or accessories such as transom ladders/depth finder trans- ducers) can create airborne water spray while the boat is cruising. Severe engine damage may res...

  • Page 45

    E 3-2 104011 q 000371 emu00176 mounting the outboard motor w improper mounting of the outboard motor could result in hazardous condi- tions such as poor handling, loss of con- trol, or fire hazards. Observe the follow- ing: 8 the information presented in this sec- tion is intended as reference only....

  • Page 46

    E 3-3 w overpowering a boat may cause severe instability. Do not install an outboard motor with more horsepower than the maximum rating on the capacity plate of the boat. If the boat does not have a capacity plate, consult the boat manufac- turer. 104014 emu01299 mounting height to run your boat at ...

  • Page 47

    E 3-4 emu00224 breaking in (running in) engine your new engine requires a period of break-in (running-in) to allow mating sur- faces of moving parts to wear-in evenly. Correct break-in (running-in) will help ensure proper performance and longer engine life. C c failure to follow the break-in (runnin...

  • Page 48

    E 3-5 emu00204 pre-operation checks w if any item in the pre-operation check is not working properly, have it inspected and repaired before operating the out- board motor. Otherwise, an accident could occur. C c do not start the engine out of water. Overheating and serious engine damage can occur. E...

  • Page 49

    E 3-6 000303 q 201012* q w e emu00209 controls 8 check throttle, shift, and steering for proper operation before starting the engine. 8 the controls should work smoothly, without binding or unusual free play. 8 look for loose or damaged connec- tions. 8 check operation of the starter and stop switch...

  • Page 50

    E 3-7 emu01031 filling fuel 1) remove the fuel tank cap. 2) fill the fuel tank carefully. 3) close the cap securely after refueling. Wipe up any spilled fuel. Emu00203 ring free fuel additive gasoline is a precise blend of many differ- ent substances, each chosen to give cer- tain characteristics. G...

  • Page 51

    E 3-8 emu01197 starting engine w 8 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. 8 when the air vent screw is loosened, gasoline (petrol) vapor will be released. Gasoline (p...

  • Page 52

    E 3-9 n 701015 n 702025 000293 on start off on start off 000714 emu00248 procedure for remote control model 4) place the remote control lever in the neutral position. Note: the start-in-gear protection device per- mits the engine to be started only when it is in neutral. 5) attach the engine stop sw...

  • Page 53

    E 3-10 on start off 701022 703045 off start on 6) turn the main switch to “on”. Note: in case of dual-engine operation, when the main switch is turned on, the buzzer operates for a few seconds and stops automatically. Should either of the dual engines stall, the buzzer operates. Emu00949 electric st...

  • Page 54

    E 3-11 000348 emu01026 warming up engine 1) before beginning operation, allow the engine to warm up at idling speed for 3 minutes. (failure to do this will shorten engine life.) 2) be sure the low oil pressure warning indicator goes off after starting the engine. 3) check for a steady flow of water ...

  • Page 55

    E 3-12 701043 n f n f 702015 n r 701044 n r 702016 emu00261 shifting w before shifting, make sure there are no swimmers or obstacles in the water near you. C c to change the shifting position from for- ward to reverse or vice-versa, close the throttle first so that the engine idles (or runs at low s...

  • Page 56

    E 3-13 on start off 701023 off off on on 703046 emu00273 stopping engine let it cool off for a few minutes at idle or low speed first. Stopping the engine immediately after operating at high speed is not recommended. Emu01199 1) turn the main switch to “off”. 2) if there is a fuel joint or a fuel co...

  • Page 57

    E 3-14 000349 q emu01412 trimming outboard motor the trim angle of the outboard motor helps determine the position of the bow of the boat in the water. The correct trim angle will help improve performance and fuel economy while reducing strain on the engine. The correct trim angle depends upon the c...

  • Page 58

    E 3-15 adjusting trim angle emu01401 power trim/tilt model w 8 be sure all people are clear of the out- board motor when adjusting the trim/tilt angle, also be careful not to pinch any body parts between the drive unit and clamp bracket. 8 use caution when trying a trim position for the first time. ...

  • Page 59

    E 3-16 001672 q 001673 w 001674 e emu19160 trim angle settings and boat handling when the boat is on plane, a bow-up atti- tude results in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees. With the bow up, the boat may have a gr...

  • Page 60

    E 3-17 000352 emu01200 tilting up/down if the engine will be stopped for some time, or if the boat is moored in shallows, the engine should be tilted up to protect the propeller and casing from damage by collision with obstructions, and also to reduce salt corrosion. C c before tilting the motor, fo...

  • Page 61

    E 3-18 up dn up dn dn up 403033 411043 emu01201 procedure for tilting up power trim/tilt model 1) if there is a fuel joint or a fuel cock on the boat, disconnect the fuel line or close the fuel cock. 2) push the power trim/tilt switch “up” until the outboard has tilted up com- pletely. 3) turn the t...

  • Page 62

    E 3-19 411021 emu00303 procedure for tilting down power trim/tilt model 1) push the power trim/tilt switch “up” until the engine is supported by the tilt rod. 2) release the tilt-support lever. 3) push the power trim/tilt switch “dn” (down) to lower the engine to the desired position. Emu01030 cruis...

  • Page 63

    E emu00317 chapter 4 maintenance specifications .....................................4-1 transporting and storing outboard motor ...............................4-3 trailering outboard motor...................4-3 storing outboard motor ......................4-4 periodic maintenance......................

  • Page 64

    E 4-1 emu00322* specifications model unit f115trc item 25 (2.5, 18) 55 (5.5, 40) 27 (2.7, 20) 18 (1.8, 13) 8spark plug 8propeller nut 8engine oil drain bolt 8engine oil filter n•m(kgf•m,lb•ft) n•m(kgf•m,lb•ft) n•m(kgf•m,lb•ft) n•m(kgf•m,lb•ft) dimensions performance 8overall length 8overall width 8o...

  • Page 65

    E 4-2 lf115trc — — 4-stroke, dohc, l4 1,741 (106.24) 79.0 × 88.8 (3.11 × 3.50) tci lfr6a-11 1.0 ~ 1.1 (0.039 ~ 0.043) remote control electric start 0.17 ~ 0.23 (0.007 ~ 0.009) 0.31 ~ 0.37 (0.012 ~ 0.015) 380 502 124 12-25 electronic fuel injection 825 (32.5) 491 (19.3) — / 1,737 (68.4) — / 643 (25.3...

  • Page 66

    E 4-3 emu01369 transporting and storing outboard motor w 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. Emu00326 trailering outboard motor the motor should be trailered and stored in the normal r...

  • Page 67

    E 4-4 emu01782 storing outboard motor when storing your yamaha outboard motor for prolonged periods of time (2 months or longer), several important pro- cedures must be performed to prevent excessive damage. It is advisable to have your outboard motor serviced by an authorized yamaha dealer prior to...

  • Page 68

    E 4-5 emu00335 filling fuel tank fill the fuel tank with fresh fuel and add one ounce of “yamaha fuel conditioner and stabilizer” (part no. Lub-fuelc-12- 00) to each gallon of fuel. Note: the use of “yamaha fuel conditioner and stabilizer” eliminates the need to drain the fuel system. Consult your y...

  • Page 69

    E 4-6 3) run the engine at a fast idle for 10~15 minutes supplying fresh water. 4) just prior to turning off the engine, quickly spray “yamaha stor-rite engine fogging oil” (part no. Lub- strrt-12-00) alternately into the silencer cover. When properly done, the engine will smoke excessively and almo...

  • Page 70

    E 4-7 emu00352 cleaning and anti-corrosion measure 1) wash down the exterior of the out- board with fresh water and dry off completely. 2) spray the engine’s exterior with “yamaha silicone protectant” (part no. Lub-silcne-13-00). C c do not spray when the engine is running. Also, do not spray near t...

  • Page 71

    E 4-8 batteries vary among manufacturers. Therefore the following procedures may not always apply. Consult your battery manufacturer’s instructions. 1) disconnect and remove the battery from the boat. Always disconnect the black negative lead first to prevent the risk of shorting. 2) clean the batte...

  • Page 72

    E 4-9 emu01569 periodic maintenance w be sure to turn off the engine when you perform maintenance unless otherwise specified. If the owner is not familiar with machine servicing, this work should be done by a yamaha dealer or other quali- fied mechanic. Maintenance, replacement, or repair of the emi...

  • Page 73

    E 4-10 emu19401 maintenance chart frequency of maintenance operations may be adjusted according to the operating con- ditions, but the following table gives general guidelines. Refer to the sections in this chapter for explanations of each owner-specific action. The mark ( ●) indicates the check-ups...

  • Page 74

    E 4-11 emu00366 greasing yamaha marine grease (water resistant grease) 000354 500 hours 1000 hours (2.5 years) (5 years) timing belt replacement 1 valve clearance (dohc) inspection / adjustment 1 item actions every 68v-9-14-4 3/11/03 19:35 page 12 www.Reelschematic.Com.

  • Page 75

    E 4-12 emu01035 cleaning and adjusting spark plug w when removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosion or fire. The spark plug is an important engine component and is easy to inspect. The co...

  • Page 76

    E 4-13 when fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the spark plug to the correct torque. Note: if a torque-wrench is not available when you are fitting a spark plug, a good esti- mate of the correct torque is 1/4 to 1/2...

  • Page 77

    E 4-14 000307 emu00369 checking fuel system w gasoline (petrol) and its vapors are highly flammable and explosive. Keep away from sparks, cigarettes, flames or other sources of ignition. Check the fuel line for leaks, cracks, or malfunctions. If any problem is found, it should be repaired immediatel...

  • Page 78

    E 4-15 000308 000309 q e w r t emu00370 inspecting fuel filter w gasoline (petrol) is highly flammable, and its vapors are flammable and explosive. 8 if you have any question about properly doing this procedure, consult your yamaha dealer. 8 do not perform this procedure on a hot or running engine. ...

  • Page 79

    E 4-16 emu01415 changing engine oil w 8 avoid draining the engine oil immedi- ately after stopping the engine. The oil is hot and should be handled with care to avoid burns. 8 be sure the outboard is securely fas- tened to the transom or a stable stand. C c 8 change the engine oil after the first 10...

  • Page 80

    E 4-17 3) put a new gasket on the drain bolt. Apply a light coat of oil to the gasket and reinstall the drain bolt. Note: if a torque wrench is not available when you are installing the drain plug, finger tighten the bolt just until the gasket comes into contact with the surface of the drain hole. T...

  • Page 81

    E 4-18 201012 6) turn off the engine and wait 3 min- utes. Recheck 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 it is above the upper mark. 7) dispose of used oil accordi...

  • Page 82

    E 4-19 413016 emu00383 checking wiring and connectors 1) check that each grounding wire is properly secured. 2) check that each connector is engaged securely. Emu00384 exhaust leakage start the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head and crank ...

  • Page 83

    E 4-20 411046 q w 411044 e 411045 1) check the power trim and tilt unit for any sign of oil leaks. 2) operate each of the power trim and tilt switches on remote control and engine bottom cowling (if equipped) to check that all switches work. 3) tilt up the motor and check that the tilt rod 1 and tri...

  • Page 84

    E 4-21 000368 000369 602051 602036 emu01039 checking propeller 1) remove the 5 screws and the cover. 2) remove the spark plug caps from the spark plugs. W you could be seriously injured if the engine accidentally starts while you are near the propeller. 8 before inspecting, removing or installing th...

  • Page 85

    E 4-22 emu00976 removing the propeller 1) straighten the cotter-pin 1 and pull it out using a pair of pliers. 2) remove the propeller nut 2, washer 3 and spacer 4. 3) remove the propeller 5 and thrust washer 6. 000357 q w e t y r emu00397 installing the propeller c c 8 be sure to install the thrust ...

  • Page 86

    E 4-23 000565 w q emu01460 changing gear oil w 8 be sure the outboard is securely fas- tened to the transom or a stable stand. You could be severely injured if the out- board falls on you. 8 never get under the lower unit while it is tilted, even when the tilt-support lever/knob is locked. Severe in...

  • Page 87

    E 4-24 5) with the outboard motor in a vertical position, and using a flexible or pres- surized filling device, inject the gear oil into the oil drain plug hole. 6) when the oil begins to flow out of the oil level plug hole, insert and tighten the oil level plug. 7) insert and tighten the oil drain ...

  • Page 88

    E 4-25 603024 405022 emu14622 inspecting 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. C c do not p...

  • Page 89

    E 4-26 emu04041 checking battery (for electric start models) w battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poi- sonous and highly caustic. Always follow these preventive mea- sures: 8 avoid bodily contact with electrolytic fluid as it can cause severe burns or...

  • Page 90

    E 4-27 c c 8 a poorly maintained battery will quick- ly deteriorate. 8 ordinary tap-water contains minerals harmful to a battery, and should not be used for topping-up. 1) check the electrolyte level at least once a month. Fill to the manufactur- er’s recommended level when neces- sary. Top up only ...

  • Page 91

    E 4-28 c c 8 make sure the main switch (on applica- ble models) is “off” before working on the battery. 8 reversal of the battery leads will dam- age the rectifier. 8 connect the red lead first when installing the battery and disconnect the red lead last when removing it. Otherwise, the electrical s...

  • Page 92

    E 4-29 emu01172 cleaning cooling-water passages flushing device equipped model perform this procedure right after opera- tion for the most thorough flushing. 1) after shutting off the engine, unscrew the garden-hose connector 2 from the fitting 1 on the bottom cowling. 2) screw the garden-hose conne...

  • Page 93

    E 4-30 000362 000363 emu00413 coating the boat bottom a clean hull improves boat performance. The boat bottom should be kept as clean of marine growths as possible. If neces- sary, the boat bottom can be coated with an anti-fouling paint approved for your area to inhibit marine growth. Do not use an...

  • Page 94

    E – memo – 68v-9-14-4 3/11/03 19:35 page 32 www.Reelschematic.Com.

  • Page 95

    E emu00414 chapter 5 trouble recovery troubleshooting ..............................5-1 temporary action in emergency ............................................5-5 impact damage.....................................5-5 running single engine .........................5-5 power trim/tilt will not oper...

  • Page 96

    E 5-1 emu01204¯ troubleshooting a problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. The troubleshooting chart describes basic checks and possi- ble remedies. (this chart covers all yamaha outboard motors. Therefore, some items may not ap...

  • Page 97

    E 5-2 c. Engine idles irregularly or stalls. Trouble possible cause remedy 1. Spark plug(s) fouled or incorrect type. 2. Fuel system obstructed. 3. Fuel contaminated or stale. 4. Fuel filter clogged. 5. Failed ignition parts. 6. Warning system activated. 7. Spark plug gap incorrect. 8. Poor connecti...

  • Page 98

    E 5-3 d. Warning buzzer sounds or indicator lamp lights. Trouble possible cause remedy 1. Cooling system clogged. 2. Engine oil level low. 3. Heat range of spark plug incorrect. 4. Specified engine oil not used. 5. Engine oil contaminated or deteriorated. 6. Oil filter clogged. 7. Oil feed/injection...

  • Page 99

    E 5-4 trouble possible cause remedy 13. Poor connections or damaged ignition wiring. 14. Failed ignition parts. 15. Specified engine oil not used. 16. Thermostat faulty or clogged. 17. Air vent screw closed. 18. Fuel pump damaged. 19. Fuel joint connection incorrect. 20. Heat range of spark plug inc...

  • Page 100

    E emu00416 temporary action in emergency emu01492 impact damage w 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 any object in the water, follow the procedure below. 1) sto...

  • Page 101

    E 5-6 411025 q emu00419 power trim/tilt will not operate if the engine cannot be tilted up or down with the power trim and tilt because of a discharged battery or a failure with the power trim and tilt unit, the engine can be tilted manually. 1 manual valve screw emu00421 1) loosen the manual valve ...

  • Page 102

    E 5-7 emu00424 starter will not operate if the starter mechanism does not operate (engine cannot be cranked with the starter), the engine can be manually start- ed with an emergency starter rope. However, the engine can not be manually started if the battery has low voltage. If the battery is discha...

  • Page 103

    E 5-8 000364 000316 on start off 701024 000317 4) prepare the engine for starting. See “starting engine” for procedures. Be sure the engine is in neutral and that the lock plate is attached to the engine stop lanyard switch. The main switch must be “on”. 5) insert the knotted end of the emer- gency ...

  • Page 104

    E 5-9 emu00446 treatment of submerged motor if the outboard motor is submerged, immediately take it a yamaha dealer. Otherwise, some corrosion may begin almost immediately. If you cannot immediately take the out- board motor to a yamaha dealer, follow the procedure bellow for taking care to minimize...

  • Page 105

    E emu00450 chapter 6 index index ........................................................6-1 1 2 3 4 5 6 68v-9-14-6 2/20/03 14:10 page 1 www.Reelschematic.Com.

  • Page 106

    E emu00451 index a adjusting trim angle ..............................3-15 b basic boating rules ..................................1-7 battery care...............................................4-7 battery requirement ..............................1-13 breaking in (running in) engine..............3-...

  • Page 107

    E 6-2 n neutral interlock trigger ..........................2-3 neutral throttle lever ...............................2-3 o operations of controls and other functions ...................................................2-2 outboard motor serial number ..............1-1 overheat warning .................

  • Page 108

    Emu01599 important warranty information for u.S.A. And canada welcome to the yamaha family! Congratulations on the purchase of your new yamaha marine power. Yamaha is commit- ted to exceptional customer satisfaction, and we want your ownership experience to be a satisfying one. Please read the follo...

  • Page 109

    5. Your warranty applies specifically to repairs made in the country of purchase. If your u.S.-purchased yamaha needs warranty service while in canada, or your canadian pur- chased yamaha needs service while in the united states, yamaha will assist the local dealer whenever possible. However, some p...

  • Page 110

    Emu01404 yamaha motor corporation, u.S.A. Four-stroke outboard motor three-year limited warranty yamaha motor corporation, u.S.A. Hereby warrants that new yamaha 1999-or-later model four-stroke outboard motors originally dis- tributed by yamaha motor corporation, u.S.A. Will be free from defects in ...

  • Page 111

    Specific parts excluded from warranty. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs, shear pins, propellers, hubs, fuel and oil filters, brushes for the starter motor and power tilt motor, water pump impellers, and anodes, are not covered by warranty. Charges for...

  • Page 112

    Customer service if your machine requires warranty service, you must take it to any authorized yamaha outboard dealer within the continental united states. Be sure to bring your warranty registration identification or other valid proof of the original date of purchase. If a question or problem arise...

  • Page 113

    Emu01178 important warranty information if you use your yamaha outside u.S.A. Or canada welcome to the yamaha family! Congratulations on the purchase of your new yamaha marine power. Yamaha is com- mitted to exceptional customer satisfaction, and we want your ownership experience to be a satisfying ...

  • Page 114: F115C

    Printed in japan march 2003-1.3 × 1 ! 68v-28199-14 (f115aet, fl115aet) (e) printed on recycled paper f115c lf115c owner’s manual u.S.A.Edition lit-18626-05-41 68v-9-14 hyoshi 2/20/03 13:16 page 1 www.Reelschematic.Com.

  • Page 115

    Yamaha motor co., ltd. Made in japan pays d'origine japon outboard motor warranty registration enregistrement de la garantie du moteur hors-bord please complete and mail this card. This information is necessary to accurately register your unit for warranty. Veuillez signer ci-dessous pour attester q...

  • Page 116

    Place postage here attn: warranty department warranty card 2/27/02 11:47 am page 2 www.Reelschematic.Com.