Honda CRF300LR 2021 Owner's Manual page 92

Drive Chain Inspecting the Drive Chain Slack
u
Pull up the drive chain and check the
4.
slack between the top of the swingarm
and the drive chain by the scale.
Drive chain
Top of
swingarm
Drive chain slack:
2 - 2 1/4 in (50 - 55 mm)
Do not ride your vehicle if the slack
u
exceeds 2 1/4 in (57 mm).
88
Roll the vehicle forward and check that
5.
the chain moves smoothly.
Inspect the sprockets.
6.
Clean and lubricate the drive chain.
7.
P. 68
2
P. 67
2