
Maintenance
4.Reinstall the filter element in the cup. Make sure the
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.
EMU29040
Inspecting idling speedEWM00450
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.
the boat is tightly moored.
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 33.
EMU29111
Checking wiring and connectors●Check that each grounding wire is properly secured.
●Check that each connector is engaged se- curely.
ZMU03737
EMU29120
Exhaust leakageStart the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head, and body cylinder.
EMU29130
Water leakageStart the engine and check that no water leaks from the joints between the exhaust cover, cylinder head, and body cylinder.
42