Changing Gear Oil - Yamaha 25C Owner's Manual

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Be sure to use a new cotter pin and bend
the ends over securely. Otherwise, the
propeller could come off during operation
and be lost.
EMU01773

CHANGING GEAR OIL

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8 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.
8 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 acci-
dentally falls.
1) Tilt the outboard motor so that the
2) Place a suitable container under the
3) Remove the gear oil drain screw 1.
4) Remove the oil level plug 2 to allow
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000650 Inspect the used oil after it has been
drained. If the oil is milky, water is get-
ting into the gear case which can cause
gear damage. Consult a Yamaha dealer
for repair of the lower unit seals.
4-20
gear oil drain screw is at the lowest
point possible.
gear case.
the oil to drain completely.
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