Yamaha YZ450F Owner's Service Manual page 45

Part to be tightened
Rear fender (front)
△
Rear fender (rear)
△
Mud flap
△
Number plate
△
1. First, tighten the steering ring nut approximately 38 Nm (3.8 m•kg, 27 ft•lb) by using the steering nut wrench, then loosen
the steering ring nut one turn.
2. Retighten the steering ring nut 7 Nm (0.7 m•kg, 5.1 ft•lb).
ELECTRICAL
Part to be tightened
Stator
Rotor
Crankshaft position sensor
Throttle position sensor
Injector
Ignition coil
Coolant temperature sensor
Rectifier/regulator
Ignition coil bracket
Intake air pressure sensor
Atmospheric pressure sensor
Atmospheric pressure sensor bracket
Condenser bracket
Ground lead
ECU
ECU bracket
TIGHTENING TORQUES
Thread size Q'ty
M6 × 1.0
M6 × 1.0
—
M6 × 1.0
Thread size Q'ty
M5 × 0.8
M12 × 1.25
M6 × 1.0
M5 × 0.8
M5 × 0.8
M5 × 0.8
M10 × 1.25
M6 × 1.0
M6 × 1.0
M5 × 0.8
M5 × 0.8
M6 × 1.0
M6 × 1.0
M5 × 0.8
M5 × 0.8
M6 × 1.0
2-15
Tightening torque
Nm m•kg
3 7 0.7
2 18 1.8
2 1 0.1
1 7 0.7
Tightening torque
Nm m•kg
3 8 0.8
1 65 6.5
2 10 1.0
1 3 0.3
2 3 0.3
2 4 0.4
1 16 1.6
2 7 0.7
2 10 1.0
1 5 0.5
1 4 0.4
1 7 0.7
2 7 0.7
1 4 0.4
2 4 0.4
2 7 0.7
ft•lb
5.1
13
0.7
5.1
ft•lb
5.8
47
7.2
2.2
2.2
2.9
11
5.1
7.2
3.6
2.9
5.1
5.1
2.9
2.9
5.1