Caution

Do not use the throttle valve adjusting screws to adjust the throttle body synchronization.

Carburetor angle driver 90890-03158

Vacuum pressure at engine idling speed 24 kPa

NOTE:

The difference in vacuum pressure between two throttle bodies should not exceed 1.33 kPa (10 mmHg, 0.39 inHg).

SYNCHRONIZING THE THROTTLE BODIES/ ADJUSTING THE ENGINE IDLING SPEED

9. Measure:

• engine idling speed

Out of specification ^ Adjust.

Make sure that the vacuum pressure is within specification.

10. Stop the engine and remove the measuring equipment.

11. Adjust:

• throttle cable free play

Refer to "ADJUSTING THE THROTTLE CABLE FREE PLAY".

Throttle cable free play (at the flange of the throttle grip) 6 ~ 8 mm (0.24 ~ 0.31 in)

12. Remove:

• digital tachometer

Refer to "AIR FILTER CASE".

Refer to "FUEL TANK".

Refer to "SEATS".

EAS00052

ADJUSTING THE ENGINE IDLING SPEED NOTE:-

Prior to adjusting the engine idling speed, the throttle bodies synchronization should be adjusted properly, and the engine should have adequate compression.

1. Start the engine and let it warm up for several minutes.

2. Install:

• digital tachometer

(to the ignition of cylinder #1)

• engine idling speed

Out of specification ^ Adjust.

Engine idling speed 1,250 ~ 1,350 r/min

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