Yamaha YZ250(N)/LC Owner's Service Manual page 76

Part to be tightened
Handle crown and outer tube
Under bracket and outer tube
Handle crown and steering shaft
Handlebar holder (upper)
Steering ring nut
Front fork and cap bolt
Front fork and base valve
Cap bolt and damper rod (front fork)
Bleed screw (front fork) and cap bolt
Front fork and protector
Front fork and brake hose holder
Front fork and hose cover
Front fork and hose cover
Throttle cable cap
Grip cap upper and lower
Clutch lever (bolt)
Clutch lever holder
Front brake master cylinder and bracket
Front brake master cylinder cap
Brake lever mounting (bolt)
Brake lever mounting (nut)
Brake lever position locknut
Cable guide (front brake hose) and guide stay
Front brake hose union bolt (master cylinder)
Front brake hose union bolt (caliper)
Front brake caliper and front fork
Brake caliper (front and rear) and pad pin plug
Brake caliper (front and rear) and pad pin
Brake caliper (front and rear) and bleed screw
Front wheel axle and nut
Front wheel axle holder
Front brake disc and wheel hub
Rear brake disc and wheel hub
Brake pedal mounting
Rear brake master cylinder and frame
NOTE:
1. First, tighten the ring nut approximately 38 Nm (3.8 m•kg, 27 ft•lb) by using the ring nut wrench,
then loosen the ring nut one turn.
2. Retighten the ring nut 7 Nm (0.7 m•kg, 5.1 ft•lb).
MAINTENANCE SPECIFICATIONS
Thread size
M 8
M 8
M24
M 8
M28
M48
M30
M12
M 5
M 6
M 6
M 8
M 6
M 4
M 6
M 6
M 5
M 6
M 4
M 6
M 6
M 6
M 5
M10
M10
M 8
M10
M10
M 8
M16
M 8
M 6
M 6
M 8
M 6
2-9
Q'ty
Nm
1.25
4 23
1.25
4 20
1.0
1 145
1.25
4 28
1.0
1
1.0
2 30
1.0
2 55
1.25
2 29
0.8
2 1
1.0
6 10
1.0
2 10
1.25
1 16
1.0
1 7
0.7
2 1
1.0
2 4
1.0
1 2
0.8
2 4
1.0
2 9
0.7
2 2
1.0
1 6
1.0
1 6
1.0
1 5
0.8
1 4
1.25
1 30
1.25
1 30
1.25
2 23
1.0
1 3
1.0
1 18
1.25
1 6
1.5
1 105
1.25
4 23
1.0
6 12
1.0
6 14
1.25
1 26
1.0
2 10
SPEC
Tightening torque
m•kg ft•lb
2.3 17
2.0 14
14.5 105
2.8 20
Refer to NOTE
3.0 22
5.5 40
2.9 21
0.1 0.7
1.0 7.2
1.0 7.2
1.6 11
0.7
5.1
0.1 0.7
0.4 2.9
0.2 1.4
0.4 2.9
0.9 6.5
0.2 1.4
0.6 4.3
0.6 4.3
0.5 3.6
0.4 2.9
3.0 22
3.0 22
2.3 17
0.3 2.2
1.8 13
0.6 4.3
10.5 75
2.3 17
1.2 8.7
1.4 10
2.6 19
1.0 7.2