Yamaha VMAX 2009 Service Manual page 301

TIP
Pass the timing chains through the timing chain
cavity.
2. Tighten:
• Cylinder head bolts
EWA2S31032
WARNING
Replace the bolts with new ones.
TIP
Tighten the bolts using the following procedure.
M MMM M MMM M M MMM M
a. Lubricate the cylinder head bolts with engine
oil.
b. Install the cylinder head bolts.
c. Tighten the cylinder head bolts in the proper
tightening sequence as shown.
Cylinder head bolt
1st
30 Nm (3.0 m·kgf, 22 ft·lbf)
d. Tighten the cylinder head bolts further to
reach the specified angle 85–95° in the prop-
er tightening sequence as shown.
Cylinder head bolt
Final
Specified angle 85–95°
EWA2S31035
WARNING
If the bolt is tightened more than the speci-
fied angle, do not loosen the bolt and then re-
tighten it. Instead, replace the bolt with a new
one and perform the procedure again.
ECA2S31041
NOTICE
• Do not use a torque wrench to tighten the
bolt to the specified angle.
• Tighten the bolt until it is at the specified
angle.
New
M MMM M M MMM M M MMM M
A
FWD
B
8
MMM
FWD
6
A. Front cylinder head
B. Rear cylinder head
TIP
On a hexagonal bolt, note that the angle from
one corner to another is 60°.
L LLL L LLL L
5-28
CYLINDER HEADS
4 2
6
8
1
3
1 3
4
2
L LLL L L LLL L L LLL L
7
5
5
7
85–95˚
L LLL L LLL