Honda CRF50F 2009 Owner's Manual page 80

Throttle
Throttle Limiter Adjustment
RIGHT HANDLEBAR
(3)
(1) lock nut
(2) throttle limiter screw
(3) throttle limiter screw measurement
72
Servicing Your Honda
(1)
(2)
1. Loosen the lock nut ( ).
2. Turn the throttle limiter screw ( ) clockwise
to reduce throttle grip movement or
counterclockwise to increase throttle grip
movement.
The throttle limiter screw measurement ( )
is 13/16 in (21 mm) when the throttle is fully
open; less than 13/16 in (21 mm) when the
throttle opening (and maximum engine
speed) is restricted.
3. Hold the screw in place and tighten the lock
nut.
To prevent moisture or debris (dirt, sand,
pebbles, sticks, etc.) from entering the throttle
housing, do not remove the throttle limiter
screw.
Moisture and debris may interfere with proper
throttle operation.
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