Maintenance

4.Reinstall the filter element in the cup. Make sure the O-ring is in position in the cup. Firmly screw the cup onto the filter housing.

5.Attach the filter assembly to the bracket so that the fuel hoses are attached to the filter assembly.

6.Run the engine and check the filter and

lines for leaks.

EMU29041

Inspecting idling speed

EWM00451

WARNING

Do not touch or remove electrical parts when starting or during operation.

Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine is running.

ECM00490

CAUTION:

This procedure must be performed while the outboard motor is in the water. A flushing attachment or test tank can be used.

A diagnostic tachometer should be used for this procedure. Results may vary depending on whether testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water.

1.Start the engine and allow it to warm up fully in neutral until it is running smooth- ly.

NOTE:

Correct idling speed inspection is only possible if the engine is fully warmed up. If not warmed up fully, the idle speed will measure higher than normal. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer or other qualified mechanic.

2.Verify whether the idle speed is set to specification. For idle speed specifica-

tions, see page 40.

EMU29050

Checking water in engine oil tank

Oil injection models

There is a water trap at the bottom of the engine oil tank. If water or foreign matter is visible in this trap, consult your Yamaha dealer.

2

1

ZMU01895

1.Water trap

2.Engine oil tank

EMU29112

Checking wiring and connectors

Check that each grounding wire is properly secured.

Check that each connector is engaged se- curely.

ZMU03915

EMU29120

Exhaust leakage

Start the engine and check that no exhaust leaks from the joints between the exhaust

51