Maintenance
78
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 pressurized
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.
1. Gear oil drain screw
2. Oil level plug
ZMU02064
2
1
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
F9.9FER 150.0 cm³ (5.07 US oz) (5.29
Imp.oz)
F9.9FMH 150.0 cm³ (5.07 US oz) (5.29
Imp.oz)
T9.9GEH 370.0 cm³ (12.51 US oz)
(13.05 Imp.oz)
T9.9GPH 370.0 cm³ (12.51 US oz)
(13.05 Imp.oz)
T9.9GPR 370.0 cm³ (12.51 US oz)
(13.05 Imp.oz)
Tightening torque:
9.0 Nm (6.6 ft-lb) (0.92 kgf-m)
Tightening torque:
9.0 Nm (6.6 ft-lb) (0.92 kgf-m)
ZMU02065
U6AU11E0.book Page 78 Friday, September 7, 2007 10:51 AM
©2019 Yamaha Motor Corporation, U.S.A.
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