Honda CRF50F 2017 Owner's Manual page 78

Throttle Limiter Adjustment:
1. Loosen the lock nut (1).
2. Turn the throttle limiter screw (2)
clockwise to reduce throttle grip
movement or counterclockwise to
increase throttle grip movement.
The throttle limiter screw measurement
(3) is 21 mm (0.83 in) when the throttle
is fully open; less than 21 mm (0.83 in)
when the throttle opening (and
maximum engine speed) is restricted.
For more information on throttle limiter
adjustment, see pages 3-4.
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.
(3)
(1) Lock nut
(2) Throttle limiter screw
(3) Throttle limiter screw measurement
(1)
(2)
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