Honda CRF125F 2021 Owner's Manual page 84

Freeplay Adjustment:
1. Adjust freeplay with the throttle cable
adjuster (1). Measured in grip rotation,
the standard throttle grip freeplay is:
2 – 6 mm (0.1 – 0.2 in)
2. To adjust the freeplay, slide the throttle
cable boot (2), then loosen the lock nut
(3) and turn the cable adjuster.
3. After adjustment, check again for
smooth rotation of the throttle grip from
the fully closed to the fully open position
with the steering to the full right and left
as well as straight ahead.
If proper throttle freeplay cannot achieved,
contact your dealer.
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(1)
(B)
(2)
(1) Cable adjuster
(2) Cable boot
(3) Lock nut
(3)
(A)
(A) Decrease freeplay
(B) Increase freeplay