Yamaha WR125R 2009, Руководство по обслуживанию

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CYLINDER HEAD
5-12
3. Install:
• Camshaft sprocket
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a. Turn the crankshaft counterclockwise.
b. Align the “I” mark “a” on the generator rotor
with the stationary pointer “b” on the genera-
tor cover.
c. Align the “I” mark “c” on the camshaft sprock-
et with the stationary pointer “d” on the cylin-
der head.
d. Install the timing chain onto the camshaft
sprocket, and then install the camshaft
sprocket onto the camshaft.
TIP
When installing the camshaft sprocket, be sure
to keep the timing chain as tight as possible on
the exhaust side.
NOTICE
ECA22B1009
Do not turn the crankshaft when installing
the camshaft to avoid damage or improper
valve timing.
e. While holding the camshaft, temporarily tight-
en the camshaft sprocket bolt.
f. Remove the wire from the timing chain.
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4. Install:
• Timing chain tensioner gasket
• Timing chain tensioner
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a. Remove the timing chain tensioner cap.
b. While lightly pressing the timing chain ten-
sioner rod by hand, turn it clockwise with a
thin screwdriver “1” until it stops.
c. Install the gasket and the timing chain ten-
sioner “2” onto the cylinder, and tighten the
timing chain tensioner bolts “3” to specifica-
tion.
TIP
Apply sealant to the timing chain tensioner bolt
threads.
d. Turn the timing chain tensioner rod counter-
clockwise with a thin screwdriver “1”, make
sure the rod releases, and then install the tim-
ing chain tensioner cap.
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4
2
6
5
3
1
1
2
2
b
a
d
c
Yamaha bond No. 1215
90890-85505
(Three Bond No.1215®)
T
R
.
.
Timing chain tensioner bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
New
1
1
2
3