Maintenance

TIP:

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 13.

EMU29061

Checking water in engine oil tank

A translucent water drain hose is connected from the bottom of the oil tank to the filler neck. If water or foreign matter collects in this hose, consult a Yamaha dealer.

2

1

ZMU03898

1.Drain hose

2.Filler neck side

EMU29112

Checking wiring and connectors

●Check that each grounding wire is properly secured.

●Check that each connector is engaged se- curely.

ZMU03841

EMU32111

Checking propeller

EWM01880

WARNING

You could be seriously injured if the engine accidentally starts when you are near the propeller.

●Before inspecting, removing, or install- ing the propeller, place the shift control in neutral, turn the main switch to “” (off) and remove the key, and remove the clip from the engine shut-off switch. Turn off the battery cut-off switch if your boat has one.

Do not use your hand to hold the propeller when loosening or tightening the propeller nut. Put a wood block between the anti-cavitation plate and the propeller to prevent the propeller from turning.

ZMU01897

Checkpoints

65