Arctic Cat 2016 Alterra 500, Service Manual

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MD1347
7. Install the four cylinder head cap screws with wash-
ers. Note that the two cap screws on the right side of
the cylinder head nearest the cam sprocket are longer
than the two cap screws on the left (spark plug) side.
Tighten only until snug.
8. Install the two lower nuts securing the cylinder head
to the cylinder, one in front and one in rear.
9. In a crisscross pattern, tighten the four cylinder head
cap screws (from step 7) to 28 ft-lb. Tighten the two
lower cylinder head nuts (from step 8) to 20 ft-lb and
the cylinder-to-crankcase nuts (from step 4) to 8
ft-lb.
10. With the timing inspection plug removed and the
cam chain held tight, rotate the crankshaft until the
piston is at top-dead-center.
11. While holding the cam chain to the front, install the
rear cam chain tensioner guide into the cylinder
head. Install the pivot cap screw and washer. Tighten
to 11 ft-lb.
CD383
12. With the alignment pin installed in the camshaft and
the cam lobes directed down (toward the piston),
place the camshaft in position and verify that the tim-
ing mark on the magneto is visible through the
inspection plug and that the timing marks on the
camshaft sprocket are parallel with the valve cover
mating surface.
GZ190C

NOTE: When the camshaft assembly is seated,
make sure the alignment pin in the camshaft aligns
with the smallest hole in the sprocket.
13. With the alignment pin installed in the camshaft,
loosely place the cam sprocket (with the recessed
side facing the camshaft lobes) onto the camshaft
and place it into position with the cam chain over the
sprocket.
CD463
MD1359
14. Place the C-ring into position in its groove in the cyl-
inder head.