Yamaha TT-R125(P) Owner's Service Manual page 286

CYLINDER AND PISTON
Cylinder
1. Install:
Dowel pins 1
Gasket (cylinder) 2
2. Install:
O-ring
Cylinder 1
Exhaust timing chain guide
CAUTION:
Install the cylinder with one hand while
compressing the piston rings with the
other hand.
Pass the timing chain through the cylin-
der timing chain cavity.
Be careful not to damage the timing chain
guide during installation.
NOTE:
After installing, check the smooth movement of
the piston.
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ENG
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