Gasoline And Engine Oil Mixing Chart (50:1); Procedure For Oil Injection Models; Preoperation Checks; Fuel - Yamaha 150F Owner's Manual

Operation
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Gasoline and engine oil mixing chart
(50:1)
1. : Gasoline
2. : Engine oil
ECM00150
CAUTION:
Be sure to mix gasoline and oil complete-
ly, otherwise the engine may be dam-
aged.
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Procedure for oil injection 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
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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. Use only
straight gasoline in the fuel tank. The
Yamaha oil injection system provides
proper lubrication for normal operation.
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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 motor. Otherwise an accident
could occur.
ECM00120
CAUTION:
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
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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).
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Oil

Check to be sure you have plenty of oil for
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