Operation
motor greatly affects the water resistance. If
the mounting height is too high, cavitation
tends to occur, thus reducing the propulsion;
life.
ECM00800
CAUTION:
and if the propeller tips cut the air, the engine Failure to follow the break-in procedure
speed will rise abnormally and cause the en- could result in reduced engine life or
gine to overheat. If the mounting height is too even severe engine damage.
low, the water resistance will increase and
EMU27081
thereby reduce engine efficiency. Mount the Procedure for 4-stroke models
outboard motor so that the anti-cavitation
plate is in alignment with the bottom of the
boat.
Run the engine under load (in gear with a
propeller installed) for 10 hours as follows.
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.
ZMU01762
4.
After the first 10 hours:
NOTE:
Operate the engine normally.
EMU27103
q
The optimum mounting height of the out-
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-
Preoperation checks
EWM00080
WARNING
If any item in the preoperation check is
not working properly, have it inspected
and repaired before operating the out-
board
could occur.
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 39.
motor. Otherwise an accident
q
ECM00120
CAUTION:
EMU30173
Breaking in engine
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
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
EMU27111
Fuel
q
Check to be sure you have plenty of fuel
for your trip.
q
Make sure there are no fuel leaks or gaso-
28
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha F40 |
| 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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