Yamaha 6C Owner's Manual page 51

fastened to the transom or a stable
stand. You could be severely injured if
the outboard motor falls on you.
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 accidental-
ly falls.
1. Tilt the outboard motor so that the gear
oil drain screw is at the lowest point pos-
sible.
2. Place a suitable container under the
gear case.
3. Remove the gear oil drain screw and
gasket. NOTICE: If there is an exces-
sive quantity of metal particles on the
magnetic gear oil drain screw, this
can indicate lower unit problem. Con-
sult your Yamaha dealer.
1. Gear oil drain screw
2. Oil level plug
TIP:
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.
NOTICE: Check the used gear oil after
TIP:
For disposal of used oil, consult your
Yamaha dealer.
5.
[ECM01900]
2
1
ZMU02879
6.
7.
Maintenance
it has been drained. If the gear oil is
milky or contains water or a large
amount of metal particles, the gear
case may be damaged. Have a
Yamaha dealer check and repair the
outboard motor.
Put the outboard motor in a vertical posi-
tion. Using a flexible or pressurized fill-
ing device, inject the gear oil into the
gear oil drain screw hole.
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
0.160 L (0.169 US qt, 0.141 Imp.qt)
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.
Tightening torque:
9 Nm (0.9 kgf-m, 6.6 ft-lb)
Put a new gasket on the gear oil drain
screw. Insert and tighten the gear oil
drain screw.
[ECM00713]
ZMU02880
46