Procedure For Hpdi Models; Preoperation Checks; Fuel - Yamaha Z300 Owner's Manual

Operation
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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-
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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.
EMU27103
EWM00080
WARNING
If any item in the preoperation 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.
EMU31550

Fuel

Check to be sure you have plenty of fuel
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for your trip.
Make sure there are no fuel leaks or gaso-
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line fumes.
Check fuel line connections to be sure they
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are tight (if equipped Yamaha fuel tank or
boat tank).
Be sure the fuel tank is positioned on a se-
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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
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water separator warning device. Place the
gear shift lever in neutral and turn the main
switch to "
and the water separator warning indicator

Preoperation checks

"(on). If the buzzer sounds