Maintenance
77
NOTICE
ECM00490
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 9. If you have difficulty verifying the
idle speed, or the idle speed requires ad-
justment, consult a Yamaha dealer or
other qualified mechanic.
EMU37495
Changing engine oil
NOTICE
ECM01710
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.
The engine oil should be extracted with an oil
changer.
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]
2.
Start the engine. Warm it up and keep the
idle speed for 5-10 minutes.
3.
Stop the engine and leave it for 5-10 min-
utes.
4.
Remove the top cowling.
5.
Remove the oil filler cap. Pull out the dip-
stick and use the oil changer to extract
the oil completely.
6.
Add the correct amount of oil through the
filler hole. Put back the filler cap and the
dipstick.
NOTICE:
Overfilling the oil
could cause leakage or damage. If the
oil level is above the upper level mark,
drain until the level meets the speci-
fied capacity.
[ECM01850]
1. Oil changer
ZMU04270
ZMU06195
1
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