Installing The Cylinder Head - Yamaha MBK MW125 2014 Service Manual

d. Make sure that the timing chain tensioner rod
comes out of the timing chain tensioner hous-
ing smoothly. If there is rough movement, re-
place the timing chain tensioner.
e. Install the timing chain tensioner plug.
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EAS30282

INSTALLING THE CYLINDER HEAD

1. Tighten:
• Cylinder head nuts "1"
Cylinder head nut
22 Nm (2.2 m·kgf, 16 ft·lbf)
• Cylinder head bolts "2"
Cylinder head bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
TIP
• Lubricate the cylinder head nuts "1" with the
molybdenum-disulfide grease.
• Tighten the cylinder head nuts and bolts in the
proper tightening sequence as shown and
torque them in two stages.
1
1
3
4
2
1
2. Install:
• Camshaft sprocket
• Timing chain
• Camshaft sprocket bolt
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a. Turn the crankshaft clockwise.
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×
4
5
×
2
2
6
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b. Align the "I" mark "a" on the AC magneto rotor
with the match mark "b" on the right crank-
case.
c. Install the timing chain "1" onto the camshaft
sprocket "2", then the camshaft sprocket onto
the camshaft, and then finger tighten the
camshaft sprocket bolt.
TIP
• When installing the camshaft sprocket, be sure
to keep the timing chain as tight as possible on
the exhaust side.
• Align the projection "c" on the camshaft sprock-
et with the slot "d" in the camshaft.
• Align the "I" mark "e" on the camshaft sprocket
with the match mark "f" on the camshaft stop-
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per plate.
ECA20600
NOTICE
Do not turn the crankshaft when installing
the camshaft sprocket to avoid damage or
improper valve timing.
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5-14
CYLINDER HEAD
d
1
f
e
b
a
c
2