Yamaha YZF-R1 2007 Service Manual page 227

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
2. Install:
• Gasket "1"
New
• Dowel pins
3. Install:
• Cylinder head
NOTE:
Pass the timing chain through the timing chain
cavity.
4. Tighten:
• Cylinder head nuts "1" – "10"
Cylinder head nut (1st)
10 Nm (1.0 m·kg, 7.2 ft·lb)
Cylinder head nut (2nd)
25 Nm (2.5 m·kg, 18 ft·lb)
Cylinder head nut (3rd)
40 Nm (4.0 m·kg, 29 ft·lb)
• Cylinder head nuts "7" "10"
Cylinder head nut (final)
55 Nm (5.5 m·kg, 40 ft·lb)
• Cylinder head bolts "11" "12"
Cylinder head bolt
12 Nm (1.2 m·kg, 8.7 ft·lb)
email: info@motomatrix.co.uk
NOTE:
• First, tighten the nuts "1" – "10" to approxi-
mately 10 Nm (1.0 m·kg, 7.2 ft·lb) with a
torque wrench, and then tighten the 25 Nm
(2.5 m·kg, 18 ft·lb).
• Retighten the nuts "1" – "10" to 40 Nm (4.0
m·kg, 29 ft·lb) with a torque wrench.
• Final, tighten the nuts "7", "10" to 55 Nm (5.5
m·kg, 40 ft·lb) with a torque wrench.
• Lubricate the cylinder head nuts with engine
oil.
• Tighten the cylinder head nuts in the proper
tightening sequence as shown and torque
them in four stages.
5. Install:
• Exhaust camshaft
• Intake camshaft
Refer to "INSTALLING THE CAMSHAFTS"
on page 5-15.
5-20
CYLINDER HEAD