Yamaha F25 - Manual (Page 43)

Maintenance
38
● Fuel line cracks or other damage
● Fuel connector leakage
EMU29041
Inspecting idling speed
WARNING
EWM00451
● 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.
CAUTION:
ECM00490
This procedure must be performed while
the outboard motor is in the water. A flush-
ing attachment or test tank can be used.
A diagnostic tachometer should be used for
this procedure. Results may vary depending
on whether testing is conducted 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.
NOTE:
Correct idling speed inspection is only possi-
ble if the engine is fully warmed up. If not
warmed up fully, the idle speed will measure
higher than normal. If you have difficulty veri-
fying the idle speed, or the idle speed requires
adjustment, consult a Yamaha dealer or other
qualified mechanic.
2. Verify whether the idle speed is set to
specification. For idle speed specifica-
tions, see page 30.
EMU30222
Changing engine oil
WARNING
EWM00760
● 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.
CAUTION:
ECM00970
● Do not overfill the oil, and be sure the
outboard motor is upright (not tilted)
when checking and changing the engine
oil.
● If the oil level is above the upper level
mark, drain until the level meets the
specified capacity. Overfilling the oil
could cause leakage or damage.
CAUTION:
ECM01240
Change the engine oil after the first 10
hours of operation, and every 100 hours or
at 6-month intervals thereafter. Otherwise
the engine will wear quickly.
NOTE:
Change the engine oil when the oil is still
warm.
1. Put the outboard motor in an upright po-
sition (not tilted).
U69M15E0.book Page 38 Wednesday, April 5, 2006 4:48 PM