Honda CB500XA Owner's Manual page 94

Drive Chain Checking the Drive Chain Slider
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Checking the Drive Chain Wear
Check the chain wear label when adjusting
the drive chain. If the front end of the chain
adjusting plate enters the red zone on the
label after the chain has been adjusted to the
proper slack, the chain is excessively worn
and must be replaced.
Chain: DID520VF or RK520KLO2
If necessary have the drive chain replaced by your
dealer.
90
Red zone
Front end of
adjusting plate
Checking the Drive Chain Slider
Check the condition of the drive chain slider.
The drive chain slider will need to be
replaced if the chain slider is worn to the
wear limit line.
If necessary have the drive chain slider
replaced by your dealer.
Wear limit line
Drive chain
slider