Honda CRF250F 2020 Owner's Manual page 106

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
• damaged or missing O-rings
Replace the drive chain (page 104) if it has
damaged rollers, loose pins, or kinks that
cannot be freed. Lubricate the drive chain
(page 103) if it appears dry or shows signs of
rust. Lubricate any kinked or binding links
and work them free. Adjust chain slack if
needed.
Drive Chain
(cont'd)
Servicing Your Honda
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