Yamaha XVS13AW(C), Service Manual

Page: 226 / 422

CAMSHAFTS
5-20
CAUTION:
ECA3D81017
Make sure the cotouts in the rocker arm
shafts faces inward.
EAS3D81021
INSTALLING THE CAMSHAFT ASSEMBLIES
1. Install:
• Front cylinder camshaft assembly “1”
NOTE:
• Be sure to install the camshaft assembly with
the punch mark “a” onto the front cylinder.
• The rear cylinder camshaft assembly does not
have a punch mark.
2. Tighten:
• Front cylinder camshaft assembly bolts
NOTE:
Tighten the bolts in the proper sequence as
shown.
3. Install:
• Front cylinder camshaft sprocket
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
Front cylinder
a. Turn the crankshaft counterclockwise.
b. When the front 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 front cylin-
der camshaft sprocket “2”, then install the
camshaft sprocket onto the camshaft, and
then finger tighten the camshaft sprocket
bolts “3”.
CAUTION:
ECA13740
Do not turn the crankshaft when installing
the camshaft(s) to avoid damage or improper
valve timing.
NOTE:
• To position the front cylinder piston at TDC on
the compression stroke, align the “I” mark “c”
on the camshaft sprocket with the arrow mark
“d” on the front cylinder camshaft carrier.
• The front cylinder camshaft is identified by the
punch mark “e”. The rear cylinder camshaft
does not have a punch mark.
T
R
.
Front cylinder camshaft assem-
bly bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
a
a
1
a
A. Intake side
B. Exhaust side
1
A
B
4
2
3
b
a