52
FC076
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.
0742-746
34. Install the two cylinder O-rings on the top of each
cylinder making sure they are correctly positioned
in the grooves.
FC077
NOTE: Lubricating the O-ring with a light coat of
grease will help keep the O-ring in place.
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.
0738-204
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.
FC021
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.
Summary of Contents for 500 Sno Pro
Page 1: ...TM SHARE OUR PASSION Operator s Performance Manual Performance Manual 500 Sno Pro...
Page 2: ......
Page 6: ...NOTES...
Page 22: ...16 NOTES...
Page 68: ...62 NOTES...
Page 92: ...86 NOTES...
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Page 95: ...Printed in U S A Trademarks of Arctic Cat Inc Thief River Falls MN 56701 p n 2258 721...