Yamaha YZ250F(Y) Owner's Service Manual page 34

Part to be tightened
Clutch boss
Clutch cable locknut
Clutch cable adjust bolt and locknut
Push lever shaft
Drive sprocket
Drive axle oil seal stopper
Segment
Shift guide
Stopper lever
Shift pedal
CHASSIS
△ - marked portion shall be checked for torque tightening after break-in or before each race.
Part to be tightened
Upper bracket and outer tube
△
Lower bracket and outer tube
△
Upper bracket and steering stem
△
Handlebar upper holder and handlebar lower holder
△
Handlebar lower holder and upper bracket
△
Steering stem and steering ring nut
△
Front fork and damper assembly
Front fork and adjuster
Damper assembly and base valve
Adjuster and damper assembly
Front fork bleed screw and base valve
Front fork and front fork protector
△
Lower bracket and brake hose guide
△
Front fork protector and brake hose holder
△
Throttle grip cap
Front brake master cylinder
△
Brake lever mounting bolt
Brake lever mounting nut
Brake lever position locknut
Clutch lever holder
Clutch lever mounting nut
Clutch lever position lock nut
Hot starter lever holder
Front brake master cylinder cap
Front brake hose union bolt
△
Front brake caliper
△
Pad pin plug
Front brake caliper and pad pin
△
Rear brake caliper and pad pin
△
TIGHTENING TORQUES
Thread size Q'ty
M16 × 1.0
M8 × 1.25
M6 × 0.75
M6 × 1.0
M18 × 1.0
M6 × 1.0
M8 × 1.25
M6 × 1.0
M6 × 1.0
M6 × 1.0
Thread size Q'ty
M8 × 1.25
M8 × 1.25
M24 × 1.0
M8 × 1.25
M10 × 1.25
M28 × 1.0
M51 × 1.5
M22 × 1.25
M42 × 1.5
M12 × 1.25
M5 × 0.8
M6 × 1.0
M6 × 1.0
M6 × 1.0
M5 × 0.8
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M5 × 0.8
M5 × 0.8
M4 × 0.7
M10 × 1.25
M8 × 1.25
M10 × 1.0
M10 × 1.0
M10 × 1.0
2-12
Tightening torque
Nm m•kg
1 60 6.0
1 7 0.7
1 4 0.4
1 10 1.0
1 75 7.5
2 10 1.0
1 30 3.0
2 10 1.0
1 10 1.0
1 12 1.2
Tightening torque
Nm m•kg
4 21 2.1
4 21 2.1
1 145 14.5
4 28 2.8
2 34 3.4
1 Refer to TIP.
2 30 3.0
2 55 5.5
2 29 2.9
2 29 2.9
2 1 0.1
6 5 0.5
1 4 0.4
2 8 0.8
2 4 0.4
2 9 0.9
1 6 0.6
1 6 0.6
1 5 0.5
2 5 0.5
1 4 0.4
1 5 0.5
2 4 0.4
2 2 0.2
2 30 3.0
2 28 2.8
2 3 0.3
1 18 1.8
1 18 1.8
ft•lb
43
5.1
2.9
7.2
54
7.2
22
7.2
7.2
8.7
ft•lb
15
15
105
20
25
22
40
21
21
0.7
3.6
2.9
5.8
2.9
6.5
4.3
4.3
3.6
3.6
2.9
3.6
2.9
1.4
22
20
2.2
13
13