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CHK
ADJ
SYNCHRONIZING THE THROTTLE BODIES/
ADJUSTING THE ENGINE IDLING SPEED
NOTE:
The difference in vacuum pressure
between two throttle bodies should not
exceed 1.33 kPa (10 mm Hg, 0.4 in Hg).
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9. Measure:
• engine idling speed
Out of specification → Adjust.
10.Stop the engine and remove the mea-
suring equipment.
11.Adjust:
• throttle cable free play
Refer to “ADJUSTING THE THROTTLE
CABLE FREE PLAY”.
Vacuum pressure at engine
idling speed
15.8 ~ 18.4 kPa (120 ~ 140
mm Hg, 4.72 ~ 5.51 in Hg)
Throttle cable free play
(at the flange of the throttle
grip)
3 ~ 5 mm (0.12 ~ 0.20 in)
ADJUSTING THE ENGINE IDLING SPEED
NOTE:
Prior to adjusting the engine idling
speed, the throttle body synchronization
should be adjusted properly, the air filter
element should be clean, and the engine
should have adequate compression.
1. Start the engine and let it warm up for
several minutes.
2. Remove:
• bottom cowling
• front cowling
Refer to “COWLINGS”.
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