Arctic Cat HDX 500 2017, Service Manual

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2. If excessive scoring, seizure marks, or pitting is
 NOTE: If the journals are worn, replace the cam-
shaft.
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. With
sealant applied to the crankcase mating area, 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.
CC026D
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.
H1-054
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.