Drive Chain - Honda CRF150F Owner's Manual

DRIVE CHAIN

Refer to the Safety Precautions on page 44.
The service life of the drive chain is dependent
upon proper lubrication and adjustment. Poor
maintenance can cause premature wear or
damage to the drive chain and sprockets.
The drive chain should be checked and
lubricated as part of the Pre-ride Inspection
(page 32). Under severe usage, or when the
motorcycle is ridden in unusually dusty or
muddy areas, more frequent maintenance will
be necessary.
Inspection:
1. Turn the engine off, raise the rear wheel
off the ground by placing a support under
the engine, and shift the transmission into
neutral.
2. Check slack in the lower drive chain run
midway between the sprockets.
Drive chain slack should be adjusted to
allow the following vertical movement by
hand:
20 – 30 mm (0.8 – 1.2 in)
66
3. Roll the motorcycle forward. Stop. Check
the drive chain slack. Repeat this
procedure several times. Drive chain slack
should remain constant. If the chain is
slack only in certain sections, some links
are kinked and binding. Binding and
kinking can frequently be eliminated by
lubrication.
NOTICE
Excessive chain slack may allow the drive
chain to damage the engine cases.
(1)
(1) Drive chain
20 – 30 mm
(0.8 – 1.2 in)