Arctic Cat Sno Pro 500 Operator's Manual page 60

35. Place new O-rings onto each of the head cap
screws. Place four of these cap screws into the cyl-
inder head. Thread the spark plugs in part way;
then while holding the head above the cylinder,
carefully start and finger-tighten all four cap
screws while observing the cylinder O-rings to
make sure they remain in position. Slowly place
the head into position on top of the O-rings. Start
and finger-tighten the remaining cap screws being
very careful not to move the cylinder head.
36. From step 35 in two steps, tighten the 6 mm cap
screws to 96 in.-lb and the 8 mm cap screws to 19
ft-lb using the pattern shown. Tighten the spark
plugs to 19 ft-lb.
NOTE: After tightening the 8 mm cap screws,
tighten the two remaining 6 mm cap screws to 96
in.-lb.
NOTE: Lubricating the O-ring with a light coat of
grease will help keep them seated in the grooves
of the cylinder.
NOTE: At this point, pressure test the engine.
37. Secure the stator plate to the crankcase with the
Allen-head cap screws (coated with blue Loctite
#243) and tighten to 96 in.-lb.
38. Secure the ignition timing sensor with screws
coated with blue Loctite #243. Tighten to 48 in.-lb.
Install the stator assembly with wires and a grom-
met into the crankcase and secure with the Allen-
head screws (coated with blue Loctite #243).
Tighten to 96 in.-lb.
54
39. Install the key in the crankshaft.
40. Thread two puller bolts into the flywheel; then
slide the flywheel onto the crankshaft making sure
the keyways match. Remove the puller bolts.
NOTE: Before installing the flywheel, be sure to
wipe the crankshaft and flywheel tapers clean
using a clean towel.
41. Apply red Loctite #271 to the threads of the fly-
wheel cap screw; then finger-tighten with a large
flat washer. DO NOT TIGHTEN AT THIS TIME.
0738-204
42. Place the starter pulley in position; then loosely
secure the starter pulley with three cap screws.
Secure the pulley while using the spanner wrench
and tighten the three cap screws evenly to 19 ft-lb.
FC021
43. Using the spanner wrench, tighten the flywheel
cap screw (from step 41) to 50 ft-lb.
FC018
FC080
FC081