Yamaha Star XVS13AA(C) 2011 Service Manual page 308

A
1
4
B
A. Intake side
B. Exhaust side
8. Install:
• Rear cylinder camshaft sprocket
M MMM M MMM M M MMM M M MMM M
Rear cylinder
a. Turn the crankshaft counterclockwise from
the front cylinder piston TDC by 300 degrees.
b. When the rear cylinder piston is at TDC on
the compression stroke, align the TDC mark
"a" on the generator rotor with the slot "b" in
the generator cover.
c. Install the timing chain "1" onto the rear cylin-
der camshaft sprocket "2", then install the
camshaft sprocket onto the camshaft, and
then finger tighten the camshaft sprocket
bolts "3".
ECA13740
NOTICE
Do not turn the crankshaft when installing
the camshaft(s) to avoid damage or improper
valve timing.
TIP
• To position the rear cylinder piston at TDC on
the compression stroke, align the "I" mark "c"
on the camshaft sprocket with the arrow mark
"d" on the rear cylinder camshaft carrier.
• The rear cylinder camshaft assembly does not
have a punch mark. Be sure to install the cam-
shaft assembly without a punch mark onto the
rear cylinder.
3
2
M MMM M M MMM M MMM
b
a
5-29
• When installing the rear cylinder camshaft
sprocket, be sure to keep the timing chain as
tight as possible on the intake side.
d
3
d. Remove the wire from the timing chain.
L LLL L LLL L L LLL L L LLL L
9. Tighten:
• Rear cylinder camshaft sprocket bolts "1"
TIP
While holding the camshaft sprocket with the ro-
tor holding tool "2", tighten the camshaft sprock-
et bolts.
Rotor holding tool
90890-01235
Universal magneto & rotor holder
YU-01235
1
10.Install:
• Rear cylinder timing chain tensioner gasket
"1" New
• Rear cylinder timing chain tensioner "2"
Rear cylinder timing chain ten-
sioner bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
TIP
• The arrow mark "a" on the rear timing chain
tensioner should face up.
• Push the end of the rear cylinder timing chain
guide (exhaust side) "3" to release the timing
chain tensioner rod.
CAMSHAFTS
1
c
2
3
L LLL L L LLL L LLL
2
1