Maintenance

EMU28400

Lubrication (except oil injection models)

1.Grease the spark plug threads and in- stall the spark plug(s) and torque to proper specification. For information on spark plug installation, see page 37.

2.Change the gear oil. For instructions, see page 42. Inspect the oil for the pres- ence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use.

3.Grease all grease fittings. For further de-

tails, see page 37.

EMU28420

Cleaning and anticorrosion measures

1.Wash down the exterior of the outboard motor with fresh water and dry off com- pletely.

2.Spray the outboard motor exterior with “Yamaha Silicone Protectant” (Part No.

LUB-SILCNE-13-00).

ECM01330

CAUTION:

If equipped Electronic Fuel Injection: Do not spray when the engine is running. Al- so, do not spray near the silencer and oxygen sensor cover or into the engine. Otherwise the oxygen sensor for Electronic Fuel Injection system could be damaged.

3.Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax”

(Part No. ACC-11000-15-02).

EMU28450

Cleaning the outboard motor

After use, wash the exterior of the outboard motor with fresh water. Flush the cooling system with fresh water.

NOTE:

For cooling system flushing instructions, see page 31.

EMU28460

Checking painted surface of motor

Check the motor for scratches, nicks, or flaking paint. Areas with damaged paint are more likely to corrode. If necessary, clean and paint the areas. A touch-up paint is available from your Yamaha dealer.

EMU28483

Periodic maintenance

EWM01070

WARNING

Be sure to turn off the engine when you perform maintenance unless otherwise specified. If you or the owner is not familiar with machine servicing, this work should be done by your Yamaha dealer or other qualified mechanic.

Maintenance, replacement, or repair of the emission control devices and systems may be performed by any marine engine repair establishment or individual. All warranty repairs, however, including those to the emission control system, must be performed by an authorized Yamaha marine dealership.

A service manual is available for purchase through your Yamaha dealer for owners who

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