User Manual - Page 115

For 2022 CRF125F. Also, The document are for others Honda models: CRF125F/FB

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106 Servicing Your Honda
Drive Chain
6. Inspect the front and rear sprocket teeth for
excessive wear or damage. If necessary, have
your dealer replace a worn sprocket.
Use of a new chain with worn sprockets will
cause rapid chain wear.
1. Loosen the rear axle nut (1).
2. Loosen the lock nuts (2) on both sides of the
swingarm.
Damaged Sprocket
Teeth
Worn Sprocket
Teeth
REPLACE
REPLACE
Normal Sprocket Teeth
GOOD
Adjustment
RIGHT SIDE
(5)
(2) (3)
(1)
(1) rear axle nut
(2) lock nut
(3) adjusting nut
(4) notch
(5) graduated scale
(4)
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