Inspecting Idle Speed; Changing Engine Oil - Yamaha F8 Owner's Manual

EMU29044

Inspecting idle speed

EWM00451
WARNING
Do not touch or remove electrical parts
●
when starting or during operation.
Keep hands, hair, and clothes away from
●
the flywheel and other rotating parts
while the engine is running.
ECM00490
NOTICE
This procedure must be performed while
the outboard motor is in the water. A flush-
ing attachment or test tank can be used.
If the boat is not equipped with a tachometer
for the outboard motor, use a diagnostic ta-
chometer for this procedure. Results may
vary depending on whether testing is conduct-
ed with the flushing attachment, in a test tank,
or with the outboard motor in the water.
1. Start the engine and allow it to warm up
fully in neutral until it is running smoothly.
2. Once the engine has warmed up, verify
whether the idle speed is set to specifica-
tion. For idle speed specifications, see
page 13. If you have difficulty verifying
the idle speed, or the idle speed requires
adjustment, consult a Yamaha dealer or
other qualified mechanic.
EMU38806

Changing engine oil

EWM00760
WARNING
Avoid draining the engine oil immediate-
●
ly after stopping the engine. The oil is
hot and should be handled with care to
avoid burns.
Be sure the outboard motor is securely
●
fastened to the transom or a stable
stand.
ECM01710
NOTICE
Change the engine oil after the first 20
hours of operation or 3 months, and every
100 hours or at 1-year intervals thereafter.
Otherwise the engine will wear quickly.
To prevent spilling oil where it could cause
damage to nature, it is strongly recommended
that you use an oil changer to change the en-
gine oil. If an oil changer is not available, drain
the engine oil by removing the drain screw. If
you are not familiar with the procedure for
changing the engine oil, consult your Yamaha
dealer.
1. Put the outboard motor in an upright po-
sition (not tilted). NOTICE: If the out-
board motor is not level, the oil level
indicated on the oil dipstick may not
be accurate.
[ECM01861]
Maintenance
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