1 Tachometer
1 Throttle stop screw
EAH92300
Carburetor adjustment
The carburetor is a vital part of the engine
and requires very sophisticated adjust-
ment. Most adjustments should be left to a
Yamaha dealer who has the professional
knowledge and experience to do so.
Standard idle speed:
1,400~1,600 r/min
EAH92000
Idle speed adjustment
1. Attach the tachometer.
2. Set the idle to the specified engine
speed by adjusting the throttle stop
screw; turn the screw in to increase
engine speed, and out to decrease en-
gine speed.
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