Maintenance
51
TIP:
If the propeller nut does not align with the pro-
peller shaft hole after tightening to the speci-
fied torque, tighten the nut further to align it
with the hole.
EMU29287
Changing gear oil
WARNING
EWM00800
●
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.
●
Never get under the lower unit while it is
tilted, even when the tilt support lever or
knob is locked. Severe injury could oc-
cur if the outboard motor accidentally
falls.
1.
Tilt the outboard motor so that the gear oil
drain screw is at the lowest point possi-
ble.
2.
Place a suitable container under the gear
case.
3.
Remove the gear oil drain screw and gas-
ket.
NOTICE:
If there is an excessive
quantity of metal particles on the mag-
netic gear oil drain screw, this can in-
dicate lower unit problem. Consult
your Yamaha dealer.
[ECM01900]
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:
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. Con-
sult a Yamaha dealer for repair of the
lower unit seals.
[ECM00711]
TIP:
For disposal of used oil, consult your Yamaha
dealer.
5.
Put the outboard motor in a vertical posi-
tion. 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.
1. Gear oil drain screw
2. Oil level plug
ZMU02064
2
1
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
0.250 L (0.264 US qt, 0.220 Imp.qt)
ZMU02065
U63V1EE0.book Page 51 Tuesday, March 3, 2009 10:50 AM
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2019 Yamaha Motor Corporation, U.S.A.
