Honda CRF50F Owner's Manual page 39

Basic Operation & Riding
Speed Restrictor for New Riders
The motorcycle is equipped with a throttle
limiter to restrict top speed. The throttle limiter
screw in the lower throttle housing can be
adjusted to limit throttle grip movement
(page 72 ).
Use the throttle limiter with the transmission
set in first gear until your youngster becomes
familiar with operating the motorcycle.
Before each ride, check the throttle limiter
screw measurement and the restriction of
throttle grip movement.
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Basic Operation & Riding