Yamaha XSR 900 2022 Service Manual page 241

5. Install:
• Camshaft cap
• Intake camshaft cap
• Exhaust camshaft cap
TIP
• Make sure each camshaft cap is installed in its
original place. Refer to the identification marks
as follows:
"IL": Intake left side camshaft cap mark
"EL": Exhaust left side camshaft cap mark
• Make sure the arrow mark "a" on each cam-
shaft points toward the right side of the engine.
6. Tighten:
• Camshaft cap bolt
Camshaft cap bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
TIP
Tighten the camshaft cap bolts in the tightening
sequence as shown.
ECA17430
NOTICE
• Lubricate the camshaft cap bolts with the
engine oil.
• The camshaft cap bolts must be tightened
evenly or damage to the cylinder head,
camshaft caps, and camshafts will result.
• Do not turn the crankshaft when installing
the camshaft to avoid damage or improper
valve timing.
8
5
2 3
1
4
7
6
a
IL
EL
a
5-24
7. Tighten:
• Camshaft cap bolt "1"
Camshaft cap bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
TIP
Tighten the camshaft cap bolts in stage and in a
crisscross pattern, working from the inner caps
out.
ECA17430
NOTICE
• Lubricate the camshaft cap bolts with the
engine oil.
• The camshaft cap bolts must be tightened
evenly or damage to the cylinder head,
camshaft caps, and camshafts will result.
• Do not turn the crankshaft when installing
the camshaft to avoid damage or improper
valve timing.
8. Check:
• Camshaft punch mark "a"
Make sure the camshaft punch mark "a" on
the camshaft is aligned with the camshaft cap
alignment mark "b".
b
a
CAMSHAFTS
1
1
b
a