Yamaha TT-R125LW, Owner'S Service Manual

Page: 218 / 468

4 - 17
ENG
CYLINDER HEAD
3. Install:
●
Timing chain
●
Camshaft sprocket
4. Install:
●
Washer
●
Bolt (camshaft sprocket)
NOTE:
Temporarily tighten the bolt (camshaft
sprocket) at this point.
Installation steps:
●
Turn the crankshaft counterclockwise with
a wrench.
●
Align the “I” mark
a
on the rotor with the
stationary pointer
b
on the crankcase
cover.
●
Align the match mark
c
on the camshaft
sprocket with the stationary pointer
d
on
the cylinder head.
●
Fit the timing chain 1 onto camshaft
sprocket 2 and install the camshaft
sprocket on the camshaft.
●
Remove the safety wire from the timing
chain.
NOTE:
When installing the camshaft sprocket,
keep the timing chain as tense as possible
on the exhaust side.
CAUTION:
Do not turn the crankshaft during instal-
lation of the camshaft. Damage or
improper valve timing will result.