Yamaha YZF-R1(B) 2012 Service Manual page 277

3. Install:
• Cylinder head
• Washers
New
• Cylinder head nuts
• Cylinder head bolts
TIP
• Pass the timing chain through the timing
chain cavity.
• Lubricate the cylinder head nuts and wash-
ers with engine oil.
4. Tighten:
• Cylinder head nuts "1"–"10"
• Cylinder head bolts "11", "12"
Cylinder head nut
1st: 40 Nm (4.0 m·kgf, 29 ft·lbf)
*2nd: Nut "1"–"7", "10" 20 Nm
(2.0 m·kgf, 14 ft·lbf) Nut "8",
"9" 25 Nm (2.5 m·kgf, 18 ft·lbf)
3rd: +120°
Cylinder head bolt
12 Nm (1.2 m·kgf, 8.7 ft·lbf)
*Following the tightening order, loosen the
nut one by one and then retighten it to the
specific torque.
TIP
Tighten the cylinder head nuts in the tightening
sequence as shown and torque them in 3
stages.
New
5. Install:
• Exhaust camshaft
• Intake camshaft
Refer to "INSTALLING THE CAM-
SHAFTS" on page 5-19.
5-26
CYLINDER HEAD