Installing The Cylinder Head - Yamaha Raptor 90 YFM90RA 2011 Service Manual

CYLINDER HEAD
EBS00233

INSTALLING THE CYLINDER HEAD

1. Install:
cyl. head assy. 1
•
cam shaft comp.
•
cap, camshaft
•
washer
•
nut
•
TIP
Tighten the nuts in two stages and a crisscross
pattern.
2. Install:
• cam shaft comp.
a. Rotate the camshaft to align the
in camshaft sprocket away from t-
ole
he cylinder head.
b.Turn the crankshaft clockwise with a wrench.
c. Align the "T" mark
stationary pointer
When the "T" mark is aligned with the sta-
tionary pointer, the piston is at the Top Dead
Center (TDC).
NOTICE
Do not turn the crankshaft during the cam-
comp. installation.
shaft
d. Place the timing chain onto the camshaft
sprocket.
e. Install the camshaft cap onto the camshaft
finger tighten the nut with wa-
comp. and
sher.
TIP
When the camshaft sprocket alignment ma-
is aligned with the cylinder head alig
rk
nment mark
nd hole in camshaft sprocket away f-
rom 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 and
the camshaft sprocket alignment mark
is aligned with the cylinder head alignme-
nt mark ,be sure to align the round hol-
e in camshsft
cylinder head.
4 - 9
ENG
round h-
on the rotor with the
on the crankcase.
, be sure to align the rou-
sprocket away from the
-