Arctic Cat 500 Sno Pro Operator's/Performance Manual page 58

31. Secure each cylinder by installing the eight nuts.
DO NOT TIGHTEN AT THIS TIME.
32. Install the oil-injection hoses and secure with the
clamps; then place the lower check-valve assem-
bly into position and secure with the gaskets and
union cap screw. Tighten securely.
33. Secure the cylinders (from step 31) by tightening
the cylinder base nuts to 44 ft-lb in three steps
using the appropriate pattern shown.
34. Install the two cylinder O-rings on the top of each
cylinder making sure they are correctly positioned
in the grooves.
NOTE: Lubricating the O-ring with a light coat of
grease will help keep the O-ring in place.
52
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 36 in two steps, tighten the 8 mm cap
screws to 19 ft-lb using the pattern shown. Tighten
the spark plugs to 19 ft-lb.
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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.
0742-746
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.
FC077
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.
0738-204
FC021