Yamaha R1 Series 2015 Service Manual page 366

2. Install:
• Cylinder head
• Cylinder head bolt (M6) ( 2)
• Cylinder head bolt (M9) ( 10)
TIP
• Pass the timing chain through the timing chain
cavity.
• Lubricate the cylinder head bolt (M9) thread
and mating surface with engine oil.
3. Tighten:
• Cylinder head bolt "1"–"10"
• Cylinder head bolt "11", "12"
Cylinder head bolt "1"–"10"
1st: 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
2nd: 25 Nm (2.5 m·kgf, 18 ft·lbf)
3rd: 45 Nm (4.5 m·kgf, 33 ft·lbf)
*4th: 15 Nm (1.5 m·kgf, 11 ft·lbf)
Specified angle 160
Cylinder head bolt "11", "12"
12 Nm (1.2 m·kgf, 8.7 ft·lbf)
* Following the tightening order, loosen the bolt
one by one and then retighten it to the specific
torque and the specific angle.
TIP
Tighten the cylinder head bolts in the tightening
sequence as shown and torque them in 4 stag-
es.
6 2
8
9
3 1
4. Install:
• Exhaust camshaft
• Intake camshaft
1
New
4
10
12
11
7
5
2
10
Refer to "INSTALLING THE CAMSHAFTS"
on page 5-19.
5-25
CYLINDER HEAD