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.
EMU29041
Inspecting idling speedEWM00451
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 tankOil 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 leakageStart the engine and check that no exhaust leaks from the joints between the exhaust
51