Yamaha YFM7FGPW Service Manual page 174

6
New
3
4
5
CYLINDER HEAD
NOTE:
_
When installing the camshaft sprocket, keep
the timing chain as tense as possible on the
exhaust side.
CAUTION:
_
Do not turn the crankshaft when installing
the camshaft to avoid damage or improper
valve timing.
f. Remove the wire from the timing chain.
L LLL
5. Install:
• timing chain tensioner
M MMM
a. Remove the timing chain tensioner cap bolt
2 1, copper washer 2 and spring 3.
New
1
b. Release the timing chain tensioner one-way
cam 4 and push the timing chain tensioner
rod 5 all the way into the timing chain ten-
sioner housing.
c. Install the timing chain tensioner and gasket
6 onto the cylinder.
NOTE:
Install the gasket with its beaded side facing
the timing chain tensioner end.
d. Install the spring and timing chain tensioner
cap bolt.
L LLL
6. Turn:
• crankshaft
(several turns counterclockwise)
4 - 16
ENG
L LLL L L LLL L L LLL L L LLL
M MMM M M MMM M M MMM M M MMM
Timing chain tensioner bolt
10 Nm (1.0 m · kg, 7.2 ft · lb)
Timing chain tensioner cap bolt
20 Nm (2.0 m · kg, 14 ft · lb)
L LLL L L LLL L L LLL L L LLL
L L LLL L LLL
M M MMM M MMM
L L LLL L LLL