Maintenance

before installing the propeller, otherwise the lower case and propeller boss could be damaged. [ECM01880]

3.Install the spacer (if equipped) and the washer. Tighten the propeller nut to the specified torque.

Propeller nut tightening torque:

35.0Nm (3.57 kgf-m, 25.8 ft-lb)

4.Align the propeller nut with the propeller shaft hole. Insert a new cotter pin in the hole and bend the cotter pin ends. NO-

TICE: Do not reuse the cotter pin in- stalled. Otherwise the propeller can come off during operation. [ECM01890]

TIP:

If the propeller nut does not align with the propeller shaft hole after tightening to the specified torque, tighten the nut further to align it with the hole.

EMU29287

Changing gear oil

EWM00800

WARNING

●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

occur if the outboard motor accidentally 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. [ECM01900]

2

1

ZMU03133

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. NO-

TICE: 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 repair of the lower unit seals. [ECM00711]

67