Yamaha Vmax VMX17C 2009, Service Manual, Page: 293 / 583

CAMSHAFTS
5-20
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2. Install:
• Exhaust camshaft “1”
• Exhaust camshaft caps “2”
NOTICE
ECA2S31034
Do not turn the crankshaft when installing
the camshaft to avoid damage or improper
valve timing.
TIP
• Make sure the punch mark “a” on the intake
camshaft gear is aligned with punch mark “b”
on the exhaust camshaft gear.
• Insert a cross-headed screwdriver “3” into one
of the holes of the exhaust camshaft gear, and
then rotate the outer exhaust camshaft gear
until both exhaust camshaft gears are aligned.
The teeth of both exhaust camshaft gears must
be aligned for installation.
• Make sure each camshaft cap is installed in its
original place. Refer to the identification marks
as follows:
Exhaust-left side: “2S3-78”
Exhaust-right side: “2S3-83”
3. Install:
• Exhaust camshaft cap bolts
NOTICE
ECA2S31035
The camshaft cap bolts must be tightened
evenly; otherwise, the cylinder head, cam-
shaft caps, and camshaft will be damaged.
TIP
• Lubricate the camshaft cap bolt mating surface
with molybdenum disulfide oil.
• Tighten the camshaft cap bolts in stages and in
a crisscross pattern.
4. Check:
• “I” mark on the intake camshaft gear
(with the edge of the cylinder head)
TIP
Check that the “I” mark “a” on the intake cam-
shaft gear is aligned with the edge of the cylinder
head “b”.
Out of alignment
→
Adjust.
Refer to the installation steps above.
Rear cylinders-intake side
1. Install:
• Intake camshaft gear “1”
T2
a b
"2S3-78"
2 1 2
"2S3-83"
T
R
.
.
Exhaust camshaft cap bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
3
a
b
a
b