Yamaha F75B - Changing Gear Oil

Maintenance
69
T
IP:
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]
T
IP:
● 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]
T
IP:
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.
ZMU02063
1. Gear oil drain screw
2. Oil level plug
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
0.670 L (0.708 US qt, 0.590 Imp.qt)
ZMU03273
2
1
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