Changing Gear Oil - Yamaha F25A Owner's Manual

Maintenance
EMU29287

Changing gear oil

EWM00800
WARNING
Be sure the outboard motor is securely
●
fastened to the transom or a stable
stand. You could be severely injured if
the outboard motor falls on you.
Never get under the lower unit while it
●
is tilted, even when the tilt support lever
or knob is locked. Severe injury could
occur if the outboard motor accidental-
ly falls.
1. Tilt the outboard motor so that the gear
oil drain screw is at the lowest point pos-
sible.
2. Place a suitable container under the
gear case.
3. Remove the gear oil drain screw and
gasket. NOTICE: If there is an exces-
sive quantity of metal particles on the
magnetic gear oil drain screw, this
can indicate lower unit problem. Con-
sult your Yamaha dealer.
1. Gear oil drain screw
2. Oil level plug
TIP:
If a magnetic gear oil drain screw is
●
equipped, remove all metal particles from
the screw before installing it.
70
●
4.
TIP:
For disposal of used oil, consult your
Yamaha dealer.
5.
[ECM01900]
2
1
ZMU02323
Always use new gaskets. Do not reuse the
removed gaskets.
Remove the oil level plug and gasket to
allow the oil to drain completely. NO-
TICE: Inspect the used oil after it has
been drained. If the oil is milky, water
is getting into the gear case which
can cause gear damage. Consult a
Yamaha dealer for repair of the lower
unit seals.
[ECM00711]
Put the outboard motor in a vertical po-
sition. Using a flexible or pressurized fill-
ing device, inject the gear oil into the
gear oil drain screw hole.
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
F25AEHT 0.320 L
(0.338 US qt, 0.282 Imp.qt)
F25AET 0.320 L
(0.338 US qt, 0.282 Imp.qt)
F25AMH 0.320 L
(0.338 US qt, 0.282 Imp.qt)
F25CMH 0.320 L
(0.338 US qt, 0.282 Imp.qt)
FT25BET 0.430 L
(0.455 US qt, 0.378 Imp.qt)