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EMU27091
Procedure for HPDI models
Run the engine under load (in gear with a
propeller installed) for 10 hours as follows.
1.
First 10 minutes:
Run the engine at the lowest possible
speed. A fast idle in neutral is best.
2.
Next 50 minutes:
Do not exceed half throttle (approxi-
mately 3000 r/min). Vary engine speed
occasionally. If you have an easy-plan-
ing boat, accelerate at full throttle onto
plane, then immediately reduce the
throttle to 3000 r/min or less.
3.
Next two hours:
Accelerate at full throttle onto plane,
then reduce engine speed to three-quar-
ter throttle (approximately 4000 r/min).
Vary engine speed occasionally. Run at
full throttle for one minute, then allow
about 10 minutes of operation at three-
quarter throttle or less to let the engine
cool.
4.
Remaining seven hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
5.
After the first 10 hours:
Operate the engine normally.
EMU27104
Pre-operation checks
EWM00081
WARNING
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.
ECM00120
CAUTION:
Do not start the engine out of water. Over-
ZMU01945
heating and serious engine damage can
occur.
EMU32490
Fuel
Check to be sure you have plenty of fuel
G
for your trip.
Make sure there are no fuel leaks or gaso-
G
line fumes.
Check fuel line connections to be sure they
G
are tight (if equipped Yamaha fuel tank or
boat tank).
Be sure the fuel tank is positioned on a se-
G
cure, flat surface, and that the fuel line is
not twisted or flattened, or likely to contact
sharp objects (if equipped Yamaha fuel
tank or boat tank).
Check the water in the fuel filter with the
G
water separator warning device. Place the
remote control lever in neutral and turn the
main switch to "
sounds and the water separator-warning
Operation
"(on). If the buzzer
43
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