Yamaha WR250F(S) Owner's Service Manual page 93

Part to be tightened
Upper bracket and outer tube
Lower bracket and outer tube
Upper bracket and steering stem
Handlebar upper holder and upper bracket
Steering stem and steering ring nut
Front fork and front fork cap bolt
Front fork and base valve
Front fork cap bolt and damper rod
Front fork bleed screw and front fork cap bolt
Front fork and front fork protector
Front fork and brake hose holder
Front fork and brake hose cover (M8)
Throttle grip cap
Front brake master cylinder
Brake lever mounting bolt
Brake lever mounting nut
Brake lever position locknut
Front brake hose guide
Clutch lever holder
Clutch lever mounting nut
Hot starter lever holder
Hot starter lever mounting nut
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
Brake caliper and bleed screw
Front wheel axle and axle nut
Front wheel axle holder
Front brake disc
Rear brake disc
Brake pedal
Rear brake master cylinder
Rear brake master cylinder cap
Rear brake hose union bolt
Rear wheel axle and axle nut
NOTE:
1. First, tighten the steering nut approximately 38 Nm (3.8 m • kg, 27 ft • lb) by using the steering
nut wrench, then loosen the steering nut one turn.
2. Retighten the steering nut 7 Nm (0.7 m • kg, 5.1 ft • lb).
MAINTENANCE SPECIFICATIONS
Thread size
M8 × 1.25
M8 × 1.25
M24 × 1.0
M8 × 1.25
M28 × 1.0
M48 × 1.0
M30 × 1.0
M12 × 1.25
M5 × 0.8
M6 × 1.0
M6 × 1.0
M8 × 1.25
M6 × 1.0
(M6)
M5 × 0.8
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M5 × 0.8
M5 × 0.8
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
M8 × 1.25
M16 × 1.5
M8 × 1.25
M6 × 1.0
M6 × 1.0
M8 × 1.25
M6 × 1.0
M4 × 0.7
M10 × 1.25
M20 × 1.5
2 - 14
SPEC
Tightening torque
Q'ty
Nm m·kg
4 23 2.3
4 20 2.0
1 145 14.5
4 28 2.8
1 Refer to NOTE.
2 30 3.0
2 55 5.5
2 29 2.9
2 1 0.1
6 10 1.0
2 10 1.0
1 16 1.6
1 7 0.7
2 4 0.4
2 9 0.9
1 6 0.6
1 6 0.6
1 5 0.5
2 4 0.4
2 4 0.4
1 4 0.4
2 4 0.4
1 2 0.2
2 2 0.2
2 30 3.0
2 23 2.3
2 3 0.3
1 18 1.8
1 18 1.8
2 6 0.6
1 105 10.5
4 23 2.3
6 12 1.2
6 14 1.4
1 26 2.6
2 11 1.1
2 2 0.2
2 30 3.0
1 125 12.5
ft·lb
17
14
105
20
22
40
21
0.7
7.2
7.2
11
5.1
2.9
6.5
4.3
4.3
3.6
2.9
2.9
2.9
2.9
1.4
1.4
22
17
2.2
13
13
4.3
75
17
8.7
10
19
8.0
1.4
22
90