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MAINTENANCE SPECIFICATIONS (WR400F)
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
Meter cable holder and protector
Front fork and brake hose holder
Front fork and hose cover
Front fork and hose cover
Throttle cable cap
Clutch lever holder
Decompression lever holder and protector
Lights switch
Front brake master cylinder and bracket
Front brake master cylinder cap
Brake lever mounting (bolt)
Brake lever mounting (nut)
Brake lever position locknut
Hose guide (front brake hose)
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 M10 × 1.0
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
Rear brake reservoir tank and frame
Rear brake hose union bolt (caliper)
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).
Thread size
Q'ty
M8 × 1.25
4
M8 × 1.25
4
M24 × 1.0
1
M8 × 1.25
4
M28 × 1.0
1
M48 × 1.0
2
M30 × 1.0
2
M12 × 1.25
2
M5 × 0.8
2
M6 × 1.0
6
M5 × 0.8
2
M6 × 1.0
2
M8 × 1.25
1
M6 × 1.0
1
M5 × 0.8
2
M5 × 0.8
2
M5 × 0.8
2
M4 × 0.7
2
M6 × 1.0
2
M4 × 0.7
2
M6 × 1.0
1
M6 × 1.0
1
M6 × 1.0
1
M5 × 0.8
2
M10 × 1.25
1
M10 × 1.25
1
M8 × 1.25
2
1
M10 × 1.0
1
M8 × 1.25
1
M16 × 1.5
1
M8 × 1.25
4
M6 × 1.0
6
M6 × 1.0
6
M8 × 1.25
1
M6 × 1.0
2
M6 × 1.0
1
M10 × 1.25
1
2 - 32
SPEC
Tightening torque
Nm
m·kg
ft·lb
23
2.3
17
20
2.0
14
145
14.5
105
28
2.8
20
Refer to NOTE.
30
3.0
22
55
5.5
40
29
2.9
21
1
0.1
0.7
10
1.0
7.2
4
0.4
2.9
10
1.0
7.2
16
1.6
11
7
0.7
5.1
4
0.4
2.9
4
0.4
2.9
4
0.4
2.9
2
0.2
1.4
9
0.9
6.5
2
0.2
1.4
6
0.6
4.3
6
0.6
4.3
5
0.5
3.6
4
0.4
2.9
30
3.0
22
30
3.0
22
23
2.3
17
3
0.3
2.2
18
1.8
13
6
0.6
4.3
105
10.5
75
23
2.3
17
12
1.2
8.7
14
1.4
10
26
2.6
19
10
1.0
7.2
10
1.0
7.2
30
3.0
22
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