Honda CRF250RL 2017 Owner's Manual page 78

Drive Chain Adjusting the Drive Chain Slack
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Turn both adjusting bolts an equal
5.
number of turns until the correct drive
chain slack is obtained. Turn the adjusting
bolts counterclockwise to tighten the
chain. Turn the adjusting bolts clockwise
and push the rear wheel forward to
provide more slack.
Adjust the slack at a point midway
between the drive sprocket and the
driven wheel sprocket.
Check the drive chain slack.
Check rear axle alignment by making sure
6.
the index marks on the chain adjusting
plate aligns with the reference mark on
both sides of the swingarm.
Both marks should correspond. If the axle
is misaligned, turn the right or left
adjusting bolt until the marks are aligned
and recheck chain slack.
76
7.
Torque: 65 lbf·ft (88 N·m, 9.0 kgf·m)
8.
Torque: 20 lbf·ft (27 N·m, 2.8 kgf·m)
9.
If a torque wrench was not used for
P. 74
installation, see your dealer as soon as
2
possible to verify proper assembly.
Improper assembly may lead to loss of
braking capacity.
Tighten the rear axle nut.
Hold the adjusting bolts and tighten the
lock nuts.
Recheck drive chain slack.