Honda CRF125F 2023 Owner's Manual page 113

Drive Chain
2. Check drive chain slack at several points
along the chain. The slack should remain
constant. If it isn't, some links may be kinked
and binding. Lubricating the chain will often
eliminate binding and kinking.
Excessive chain slack may allow the drive
chain to damage the engine cases.
3. Inspect the drive chain for:
• damaged rollers
• loose pins
• dry or rusted links
• kinked or binding links
• excessive wear
Replace the drive chain (page 108) if it has
damaged rollers, loose pins, or kinks that
cannot be freed. Lubricate the drive chain
(page 107) if it appears dry or shows signs of
rust. Lubricate any kinked or binding links
104
Servicing Your Honda
and work them free. Adjust chain slack if
needed.
4. Check the chain slider (2) for wear. If the
depth (3) of the chain slider reaches the
service limit, have your dealer replace the
chain slider.
LEFT SIDE
(3)
(3)
(2) chain slider
Service Limit:
0.12 in (3 mm)
(3)
(2)
(3) depth