57
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. 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 or the fingers, 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.
CC024D
4. Loosely install the two nuts which secure the cylin-
der to the crankcase.
NOTE: The two cylinder-to-crankcase nuts will be
tightened in step 11.
CC023D
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.