Yamaha R1 Series 2015 Service Manual page 94

TIP
Timing chain cover bolt
1. Tighten the bolts to 6 Nm (0.6 m·kgf, 4.3 ft·lbf) with a torque wrench following the tightening order.
2. Perform the following procedure to all the bolts one by one in the tightening sequence as shown in
the illustration.
a. Loosen the bolt.
b. Tighten the bolt to 3.0 Nm (0.30 m·kgf, 2.2 ft·lbf) with a torque wrench.
c. Tighten the bolt further to reach the specified angle 90 .
TIP
Cylinder head bolt
1. Tighten the bolts to 10 Nm (1.0 m·kgf, 7.2 ft·lbf) with a torque wrench following the tightening order.
2. Tighten the bolts to 25 Nm (2.5 m·kgf, 18 ft·lbf) with a torque wrench following the tightening order.
3. Tighten the bolts to 45 Nm (4.5 m·kgf, 33 ft·lbf) with a torque wrench following the tightening order.
4. Perform the following procedure to all the bolts one by one in the tightening sequence as shown in
the illustration.
a. Loosen the bolt.
b. Tighten the bolt to 15 Nm (1.5 m·kgf, 11 ft·lbf) with a torque wrench.
c. Tighten the bolt further to reach the specified angle 160 .
TIP
Generator cover bolt
1. Tighten the bolts to 6 Nm (0.6 m·kgf, 4.3 ft·lbf) with a torque wrench following the tightening order.
2. Perform the following procedure to all the bolts one by one in the tightening sequence as shown in
the illustration.
a. Loosen the bolt.
b. Tighten the bolt to 3.0 Nm (0.30 m·kgf, 2.2 ft·lbf) with a torque wrench.
c. Tighten the bolt further to reach the specified angle 90 .
1
5
4
6 2
8
9
3 1
2-19
TIGHTENING TORQUES
2
3
4
10
7
5
10