Yamaha F25 User Manual download pdf (Page 47)

Maintenance

42

2. Install the spacer (if equipped), thrust

washer, and propeller on the propeller

shaft.

3. Install the spacer (if equipped) and the

washer. Tighten the propeller nut until

there is no forward-and-backward move-

ment.

4. Align the propeller nut with the propeller

shaft hole. Insert a new cotter pin in the

hole and bend the cotter pin ends.

NOTE:

If the propeller nut does not align with the pro-

peller shaft hole after tightening it, loosen the

nut until it aligns with the hole.

EMU29282

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.

NOTE:

● 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.

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.

N

O

TE:

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.

1. Gear oil drain screw

2. Oil level plug

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