Maintenance
52
NOTE:
If the magnetic gear oil drain screw equipped:
remove all metal particles from the screw be-
fore installing it.
4. Remove the oil level plug 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. When the oil begins to flow out of the oil
level plug hole, insert and tighten the oil
level plug.
7. Insert and tighten the gear oil drain
screw.
EMU29312
Inspecting and replacing anode(s)
Yamaha outboard motors are protected from
corrosion by sacrificial anodes. Inspect the
external anodes periodically. Remove scales
from the surfaces of the anodes. Consult a
Yamaha dealer for replacement of external
anodes.
CAUTION:
ECM00720
Do not paint anodes, as this would render
them ineffective.
NOTE:
Inspect ground leads attached to external an-
odes on equipped models. Consult a Yamaha
dealer for inspection and replacement of inter-
nal anodes attached to the power unit.
1. Gear oil drain screw
2. Oil level plug
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
670.0 cm³ (22.65 US oz) (23.63
Imp.oz)
ZMU03273
2
1
ZMU03274
U6D610E0.book Page 52 Tuesday, April 20, 2004 1:52 PM
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