Yamaha V Star 950 Service Manual page 206

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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
cylinder camshaft sprocket "2", then install
the camshaft sprocket onto the camshaft,
and then finger tighten the camshaft
sprocket bolt "3".
ECA13740
Do not turn the crankshaft when installing
the camshaft(s) to avoid damage or
improper valve timing.
TIP
• 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 head.
• When installing the front cylinder camshaft
sprocket, be sure to keep the timing chain as
tight as possible on the exhaust side.
d. Remove the wire from the timing chain.
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6. Tighten:
• Front cylinder camshaft sprocket bolt "1"
TIP
While holding the camshaft sprocket with the
rotor holding tool "2", tighten the camshaft
sprocket bolt.
Rotor holding tool
90890-01235
Universal magneto & rotor
holder
YU-01235
Camshaft sprocket bolt
55 Nm (5.5 m·kgf, 40 ft·lbf)
7. Install:
• Front cylinder timing chain tensioner gas-
ket "1" New
• Front cylinder timing chain tensioner "2"
TIP
To push in the timing chain tensioner rod,
release the lock by pushing in the one-way
cam "6".
Front cylinder timing chain ten-
sioner bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
8. Install:
• Timing chain tensioner spring "5"
• Copper washer "4"
• Timing chain tensioner cap bolt "3"
Timing chain tensioner cap bolt
24 Nm (2.4 m·kgf, 17 ft·lbf)
5-17
CAMSHAFTS