Yamaha R6 2009 Service Manual page 222

2. Install:
• Timing chain "1"
• Exhaust camshaft "2"
• Intake camshaft "3"
(with the camshaft sprockets temporarily
tightened)
TIP
• Make sure the match marks "a" on the cam-
shaft sprockets are aligned with the cylinder
head edge "b".
• Be sure to install the timing chain so that the
exhaust side of the chain is taut and the
intake side is slack.
3. Install:
• Intake camshaft caps
• Exhaust camshaft caps
TIP
• Make sure each camshaft cap is installed in
its original place. Refer to the identification
marks as follows:
"I1", "I2": Intake
"E1", "E2": Exhaust
• Make sure the arrow mark "a" on each cam-
shaft points towards the right side of the
engine.
E2
I2
E1
E1
I1
I1
5-13
a
a
4. Install:
• Camshaft cap bolts
Camshaft cap bolt
10 Nm (1.0 m·kg, 7.4 ft·lb)
ECA13730
The camshaft cap bolts must be tightened
evenly or damage to the cylinder head,
camshaft caps, and camshafts will result.
TIP
Tighten the camshaft cap bolts in stages and
in a crisscross pattern, working from the inner
caps out.
5. Install:
• Timing chain tensioner gasket "1"
• Timing chain tensioner "2"
Timing chain tensioner bolt
12 Nm (1.2 m·kg, 8.9 ft·lb)
TIP
• Be sure to install the timing chain tensioner
gasket so that its section with the "L" mark "a"
is protruding from the lower left side of the
timing chain tensioner.
• The punch mark "b" on the timing chain ten-
sioner should face up.
a
L
1
CAMSHAFTS
a
a
a
New
b
2