Timing Chain - Yamaha YFM250XL(C) Service Manual

4
INSPECTION AND REPAIR
5.Install:
Camshaft bushing 1
NOTE:
The cut-out portion 2 of the bushing must
be flush with the cylinder head.
CAUTION:
Do not cock the bushing during installa-
tion. The bushing must be perpendicular to
the camshaft during installation.
6.Install:
Retainer 1 (camshaft bushing)
Lock washer (new)
NOTE:
Be sure that the projection 2 on the
retainer aligns with the cut-out portion 3
on the camshaft busing.
7.Tighten:
Bolts 1 (camshaft bushing retainer)
Bolts (camshaft bushing retainer):
8 Nm (0.8 m • kg, 5.8 ft • lb)
8.Bend the lock washer tabs 2.

TIMING CHAIN

1.Inspect:
Timing chain
Chain stretch/Stiff/Cracks → Replace.
4 - 30
ENG