E

q

GU0-117

W A R N I N G

5 6 7 8

4

1000

r/min

3

2

MODE 1

0mph

GP7-118

EJU00573

CARBURETOR ADJUSTMENT

The carburetor is a vital part of the engine and requires very sophisticated adjust- ment. Most adjusting should be left to a Yamaha Water Vehicle dealer who has the professional knowledge and experience to do so. However, the following point may be serviced by the owner as part of his usual maintenance routine.

cC

The carburetor was set at the Yamaha factory after many tests. If the settings are disturbed without having technical knowledge, poor engine performance and damage may result.

EJU00577

Trolling speed

Place the water vehicle afloat. Start the engine and warm it up for one or two minutes. Using a diagnostic tachometer or, if necessary, the tachometer in the multifunction meter, adjust the engine speed to specification. Turn the throttle stop screw clockwise to increase engine speed or counterclockwise to decrease engine speed.

Trolling speed: 1,250~1,350 r/min

1Throttle stop screw

NOTE:

8 When possible, use a diagnostic tachometer for this procedure.

8 When using the tachometer in the mul- tifunction meter, set engine speed as the meter indicates specified trolling speed.

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