Yamaha Rhino 450 YXR45FAV, Service Manual

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4 - 15
ENG
CYLINDER HEAD
NOTE:
Be sure the “I” mark 5 on the camshaft
sprocket is aligned with the match mark 2 on
the cylinder head.
f. Force the camshaft clockwise and counter-
clockwise to remove timing chain slack.
g. Insert a screwdriver into the timing chain
tensioner hole and push the timing chain
guide inward.
h. While pushing the timing chain guide, be
sure that the camshaft sprocket “I” mark
5
is aligned with the match mark
2
on the
cylinder head.
i. If the marks are aligned, tighten the cam-
shaft sprocket bolt. If the marks are not
aligned, change the meshing position of the
camshaft sprocket and timing chain.
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3. Install:
• timing chain tensioner
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a. Remove the tensioner cap bolt
1
, washer
2
and spring
3
.
b. Release the timing chain tensioner one-way
cam
4
and push the tensioner rod
5
all the
way in.
c. Install the tensioner with a new gasket into
the cylinder.
WARNING
Always use a new gasket.
d. Install the spring, washer and cap bolt.
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T
R
.
.
Timing chain tensioner bolts
11 Nm (1.1 m · kg, 8.0 ft · lb)
T
R
.
.
Timing chain tensioner cap bolt
23 Nm (2.3 m · kg, 17 ft · lb)