Checking Fuel Filter; Inspecting Idle Speed; Changing Engine Oil - Yamaha F8F Owner's Manual

Maintenance
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Checking fuel filter

Check the fuel filter periodically. The fuel filter
is a one piece, disposable type. If foreign
matter is found in the filter, replace it. For re-
placement of the fuel filter, consult your
Yamaha dealer.
1. Fuel filter
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Inspecting idle speed

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 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.
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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 con-
ducted 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.
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(2) Once the engine has warmed up, verify
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Changing engine oil

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1
 Avoid draining the engine oil immediate-
 Be sure the outboard motor is securely
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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 recommend-
ed that you use an oil changer to change the
engine oil. If an oil changer is not available,
drain the engine oil by removing the drain
screw. If you are not familiar with the proce-
dure for changing the engine oil, consult your
Yamaha dealer.
(1) Put the outboard motor in an upright po-
whether the idle speed is set to specifi-
cation. For idle speed specifications, see
page 11. If you have difficulty verifying
the idle speed, or the idle speed requires
adjustment, consult a Yamaha dealer or
other qualified mechanic.
ly after stopping the engine. The oil is
hot and should be handled with care to
avoid burns.
fastened to the transom or a stable
stand.
sition (not tilted). NOTICE: If the out-
board motor is not level, the oil level
indicated on the oil dipstick may not
be accurate.
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