Yamaha XSR 900 2022 Service Manual page 242

9. Install:
• Timing chain tensioner gasket
• Timing chain tensioner
a. Using the valve spring compressor "1",
push and insert timing chain tensioner rod
"2" into the timing chain tensioner housing.
TIP
Push the timing chain tensioner rod in direction
"a", and turn the timing chain tensioner body "3"
in direction "b" until the circlip fits into the groove.
1
b
1
b. Lock the timing chain tensioner rod by set-
ting the circlip "4" into groove "5" while
pushing the timing chain tensioner rod.
4
5
c. Install the timing chain tensioner to the cyl-
inder block.
TIP
Always use a new gasket.
Timing chain tensioner bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
New
a
2
3
d. Turn the crankshaft clockwise several times
to release the timing chain tensioner rod.
10.Turn:
• Crankshaft
(several turns counterclockwise)
11.Confirm the timing chain tension properly.
12.Check:
• Mark "a"
Make sure the mark "a" on the generator rotor
is aligned with the generator rotor cover mark
"b".
• Camshaft punch mark "c"
Make sure the camshaft punch mark "c" on
the camshaft is aligned with the camshaft cap
alignment mark "d".
Out of alignment → Adjust.
Refer to the installation steps above.
b
a
c
13.Measure:
• Valve clearance
Out of specification → Adjust.
Refer to "ADJUSTING THE VALVE CLEAR-
ANCE" on page 3-5.
14.Install:
• Timing mark accessing bolt "1"
Timing mark accessing bolt
15 N·m (1.5 kgf·m, 11 lb·ft)
• Crankshaft end cover "2"
Crankshaft end cover
10 N·m (1.0 kgf·m, 7.4 lb·ft)
5-25
CAMSHAFTS
d
d
c