34
CC287D
NOTE: If the journals are worn, replace the cam-
shaft; then measure the clearance again. If it is still
out of tolerance, replace the cylinder head.
Inspecting Camshaft Spring/Drive
Pin
1. Inspect the spring and drive pin for damage.
CF061A
CF060A
2. If damaged, the camshaft must be replaced.
Installing Top-Side
Components
A. Piston
B. Cylinder
1. Install the piston on the connecting rod making sure
the circlip on each side is fully seated in the piston.
NOTE: The piston should be installed so the
arrow points toward the exhaust.
CC032D
2. Place the two alignment pins into position and place
a drop of silicone sealant on case half joints. Place
the cylinder gasket into position; then place a piston
holder (or suitable substitute) beneath the piston skirt
and square the piston in respect to the crankcase.
CF083
3. Lubricate the inside wall of the cylinder; then using a
ring compressor, compress the rings and slide the
cylinder over the piston. Route the cam chain up
through the cylinder cam chain housing; then remove
the piston holder and seat the cylinder firmly on the
crankcase.
CAUTION
The cylinder should slide on easily. Do not force the cyl-
inder or damage to the piston, rings, cylinder, or crank-
shaft assembly may occur.