Operation
board motor is affected by the boat/motor
combination and the desired use. Test
runs at different heights can help deter-
mine the optimum mounting height. Con-
sult
your
Yamaha
dealer
or
boat
manufacturer for further information on de-
termining the proper mounting height.
For instructions on setting the trim angle of
the outboard motor, see page 48.
q
EMU30173
Breaking in engine
1.
Center line (keel line)
Your new engine requires a period of break-
in to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help en-
sure proper performance and longer engine
EMU26930
Mounting height (boat bottom)
To run your boat at optimum efficiency, the
water resistance (drag) of the boat and out-
board motor must be made as little as possi-
ble. The mounting height of the outboard
motor greatly affects the water resistance. If
the mounting height is too high, cavitation
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
life.
ECM00800
CAUTION:
Failure to follow the break-in procedure
could result in reduced engine life or
even severe engine damage.
EMU27081
Procedure for 4-stroke models
low, the water resistance will increase and Run the engine under load (in gear with a
thereby reduce engine efficiency. Mount the propeller installed) for 10 hours as follows.
outboard motor so that the anti-cavitation
plate is in alignment with the bottom of the
boat.
1.
2.
3.
First hour:
Run the engine at 2000 r/min or at ap-
proximately half throttle.
Second hour:
Run the engine at 3000 r/min or at ap-
proximately three-quarter throttle.
Remaining eight hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
4.
After the first 10 hours:
Operate the engine normally.
ZMU01874
NOTE:
q
The optimum mounting height of the out-
39
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha F115, Yamaha LF115 |
| Model Year | 2007 |
| Download File |
|
| Language | English |
| Product Brand | Yamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926 Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard |
| Document File Type | |
| Publisher | yamaha-motor.com |
| Wikipedia's Page | Yamaha Motor Company |
| Copyright | Attribution Non-commercial |
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