Maintenance
67
NOTE:
●
If a magnetic gear oil drain screw is
equipped, remove all metal particles from
the screw before installing it.
●
Always use new gaskets. Do not reuse the
removed gaskets.
4.
Remove the oil level plug and gasket to
allow the oil to drain completely.
CAUTION:
ECM00710
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 re-
pair of the lower unit seals.
NOTE:
For disposal of used oil, consult your
Yamaha dealer.
5.
With the outboard motor in a vertical po-
sition, and using a flexible or pressur-
ized filling device, inject the gear oil into
the gear oil drain screw hole.
6.
Put a new gasket on the oil level plug.
When the oil begins to flow out of the oil
level plug hole, insert and tighten the oil
level plug.
7.
Put a new gasket on the gear oil drain
screw. Insert and tighten the gear oil
drain screw.
EMU29302
Cleaning fuel tank
WARNING
EWM00920
Gasoline is highly flammable, and its va-
pors are flammable and explosive.
●
If you have any question about properly
doing this procedure, consult your
1. Gear oil drain screw
2. Oil level plug
ZMU02323
1
2
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
F20AET 320.0 cm
3
(10.82 US oz)
(11.29 Imp.oz)
F25AE 320.0 cm
3
(10.82 US oz)
(11.29 Imp.oz)
F25AET 320.0 cm
3
(10.82 US oz)
(11.29 Imp.oz)
F25AMH 320.0 cm
3
(10.82 US oz)
(11.29 Imp.oz)
FT25BET 430.0 cm
3
(14.54 US oz)
(15.17 Imp.oz)
ZMU02065
