Maintenance

EJU34463

Adjusting the carburetor

ECJ00172

NOTICE

If the carburetor settings are disturbed by someone who does not have the necessary technical knowledge, poor engine performance and damage may result.

The carburetor is a vital part of the engine and requires very sophisticated adjustments. Most adjustments should be left to a Yamaha dealer who has the professional knowledge and experience to make them.

However, the operator may adjust the engine idling speed as part of the usual maintenance routine.

EJU34471

Adjusting the engine idling speed

(1)Place the watercraft in the water.

(2)Start the engine and warm it up for 1 to 2 minutes.

(3)While using a diagnostic tachometer, turn the throttle stop screw to adjust the en- gine idling speed to specification. Turn the throttle stop screw clockwise to in- crease the engine idling speed or coun- terclockwise to decrease the engine idling speed.

1Throttle stop screw

Engine idling speed: 1300 ±50 r/min

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