Yamaha 2002 YZ250FR Assembly Manual - page 29
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EAA10300
TIGHTENING TORQUE
Engine:
Engine oil drain bolt (oil filter)
M 6 x1.0
10
1.0
7.2
Spark plug
M10Sx1.0
13
1.3
9.4
Chassis:
Handle crown and outer tube
M 8 x1.25
23
2.3
17
Under bracket and outer tube
M 8 x1.25
20
2.0
14
Handle crown and steering shaft
M24x1.0
145
14.5
105
Handlebar holder (upper)
M 8 x1.25
28
2.8
20
Steering ring nut
M28x1.0
Front fork and cap bolt
M48x1.0
30
3.0
22
Front fork and base valve
M30x1.0
55
5.5
40
Cap bolt and damper rod (front fork)
M12x1.25
29
2.9
21
Bleed screw (front fork) and cap bolt
M 5 x0.8
1
0.1
0.7
Front fork and cover
M 6 x1.0
10
1.0
7.2
Front fork and brake hose holder
M 6 x1.0
10
1.0
7.2
Front fork and hose cover
M 8 x1.25
16
1.6
11
Front fork and hose cover
M 6 x1.0
7
0.7
5.1
Throttle cable cap
M 5 x0.8
4
0.4
2.2
Clutch lever holder
M 5 x0.8
4
0.4
2.2
Clutch lever mounting
M 6 x1.0
2
0.2
1.4
Hot star ter lever holder
M 5 x0.8
4
0.4
2.9
Front brake master cylinder and bracket
M 6 x1.0
9
0.9
6.5
Front brake master cylinder cap
M 4 x0.7
2
0.2
1.4
Brake lever mounting (bolt)
M 6 x1.0
6
0.6
4.3
Brake lever mounting (nut)
M 6 x1.0
6
0.6
4.3
Brake lever position locknut
M 6 x1.0
5
0.5
3.6
Cable guide (front brake hose) and guide stay
M 5 x0.8
4
0.4
2.9
Front brake hose union bolt (master cylinder)
M10x1.25
30
3.0
22
Front brake hose union bolt (caliper)
M10x1.25
30
3.0
22
Front brake caliper and front fork
M 8 x1.25
23
2.3
17
Brake caliper (front and rear) and pad pin plug
M10x1.0
3
0.3
2.2
Brake caliper (front and rear) and pad pin
M10x1.0
18
1.8
13
Brake caliper (front and rear) and bleed screw
M 8 x1.25
6
0.6
4.3
Front wheel axle and nut
M16x1.5
105
10.5
75
Front wheel axle holder
M 8 x1.25
23
2.3
17
Front brake disc and wheel hub
M 6 x1.0
12
1.2
8.7
Rear brake disc and wheel hub
M 6 x1.0
14
1.4
10
Brake pedal mounting
M 8 x1.25
26
2.6
19
Rear brake master cylinder and frame
M 6 x1.0
11
1.1
8.0
Rear brake master cylinder cap
M 4 x0.7
2
0.2
1.4
Rear brake hose union bolt (caliper)
M10x1.25
30
3.0
22
Rear brake hose union bolt (master cylinder)
M10x1.25
30
3.0
22
NOTE:
1. First, tighten the ring nut approximately 38 Nm (3.8 mdkg, 27 ftdlb) by using the ring nut wrench, then
loosen the ring nut one turn.
2. Retighten the ring nut 7 Nm (0.7 mdkg, 5.1 ftdlb).
Item
Thread size
Tightening torque
Nm
mdkg
ftdlb
Refer to NOTE.