Arctic Cat Sno Pro 500 Operator's Manual page 47

10. Remove the eight nuts securing the cylinders to the
crankcase; then using a rubber hammer, gently tap
the cylinders and remove from the crankcase by
lifting them straight up off their studs. Account for
gasket(s) and any alignment pins.
CAUTION
When removing a cylinder, be sure to support the pis-
ton to prevent damage to the crankcase and piston.
11. Remove the PTO-side piston-pin circlip from the
PTO-side piston; then remove the MAG-side pis-
ton-pin circlip from the MAG-side piston.
12. Using Piston Pin Puller (p/n 0644-328)0, remove
the piston pins from both pistons.
NOTE: For proper assembly, keep all MAG-side
components and all PTO-side components sepa-
rated. Assemble them on their proper sides.
DO NOT use any type of punch to drive the piston pin
free of the piston; damage may result. Use a piston-
pin puller only.
13. Lift the pistons clear of the connecting rods and
remove the small-end connecting-rod bearings
(account for two washers); then remove the piston
rings. Keep each piston with its rings; keep each
piston pin and bearing together as a set.
FC067
NOTE: Place rubber bands over the connecting
rods and around the cylinder studs to prevent the
connecting rods from damaging the crankcase.
14. Remove the intake flanges and reed valve assem-
blies.
CM149
15. Remove the three cap screws securing the thermostat
cap; then remove the cap, gasket, and thermostat.
FC029
CAUTION
AN317D
FC030
FC032
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