Arctic Cat Sno Pro 120, Service Manual

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32. Install the flange nuts and cap screws (cap screws 1-
6 threads coated with oil); then using the pattern
shown, tighten in the following sequence:
A. Cap screws 1-6 initially to 18 ft-lb.
B. Flange nuts 7-8 to 18 ft-lb.
C. Flange nuts 9-10 to 10 ft-lb.
D. Flange nuts 11-12 to 18 ft-lb.
E. Cap screws 13-14 to 96 in.-lb.
F. Cap screws 1-6 in two steps from 18 ft-lb to 43 ft-
lb.
741-617A
33. With a light film of engine-assembly grease applied
to the tappets, install the correct shim (A) and tappet
(B) to each valve of the cylinder head as noted dur-
ing disassembling.
ZJ083A

NOTE: Prior to installing the camshaft, apply
engine-assembling grease to the camshaft journals
and lobes.
34. With the crankshaft rotated to the top-dead-center
position, place the cam chain over the sprocket of the
exhaust camshaft.

NOTE: The exhaust camshaft must be installed first.
When installing the cam chain to the gear of the
exhaust camshaft, position the chain so no slack
between the crankshaft gear and exhaust camshaft
exists when the camshaft is installed. All slack in cam
chain must be on the side of the tension adjuster.
ZJ084
35. With the timing marks (A) on the face of the cam-
shaft gear properly aligned, place the camshaft into
position on the cylinder head.
741-801A
36. With the cam chain properly seated to the gears of
the crankshaft and exhaust camshaft, install the
intake camshaft noting the timing marks (B) are
properly aligned.

NOTE: With the camshafts and cam chain in place,
there should be exactly 16 pins from intake cam mark
3 to exhaust cam mark 2.
741-780A
37. With the camshafts in position and properly timed
and the dowel pins in place, install the camshaft cov-
ers along with cam chain tensioner guide number
two; then using the pattern shown, tighten the twelve
cap screws to 84 in.-lb.