
Maintenance
63
4. Remove the oil level plug and gasket to
allow the oil to drain completely.
NOTICE: Check the used oil after it
has been drained. If the oil is milky or
contains a large amount of metal par-
ticles, the gear case may be damaged.
Have a Yamaha dealer check and re-
pair the outboard motor.
[ECM00712]
IP:
For disposal of used oil, consult your Yamaha
dealer.
5. Using a flexible or pressurized filling de-
vice, 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.
EMU39331
Inspecting and replacing anode (ex-
ternal)
Yamaha outboard motors are protected from
corrosion by sacrificial anode. Inspect the ex-
ternal anode periodically. Remove scales
from the surface of the anode. Consult a
Yamaha dealer for replacement of the exter-
nal anode.
NOTICE
ECM00720
Do not paint anodes, as this would render
them ineffective.
1. Gear oil drain screw
2. Oil level plug
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
0.100 L (0.106 US qt, 0.088 Imp.qt)
1
2
ZMU06779
ZMU06780
Tightening torque:
9.0 Nm (0.92 kgf-m, 6.6 ft-lb)
Tightening torque:
9.0 Nm (0.92 kgf-m, 6.6 ft-lb)
1. Anode
ZMU06781
1
U6BV10E0.book Page 63 Friday, July 17, 2009 2:29 PM
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