Yamaha YZ250F(Z) Owner's Service Manual page 39

2010
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Part to be tightened
Front brake disc
Rear brake disc
Footrest bracket and frame
Brake pedal
Rear brake master cylinder
Rear brake master cylinder cap
Rear brake hose union bolt
Rear wheel axle and axle nut
Nipple (spoke)
Rear wheel sprocket
Rear brake disc cover
Rear brake caliper protector
Drive chain puller adjust bolt and locknut
Engine mounting:
Engine and engine bracket (front)
Engine and frame (lower)
Upper engine bracket and frame
Front engine bracket and frame
Engine and engine bracket (upper)
Lower engine guard
CDI unit bracket
Cable guide and frame
Pivot shaft and nut
Relay arm and swingarm
Relay arm and connecting rod
Connecting rod and frame
Rear shock absorber and frame
Rear shock absorber and relay arm
Rear frame (upper)
Rear frame (lower)
Swingarm and brake hose holder
Upper drive chain tensioner
Lower drive chain tensioner
Drive chain support
Seal guard and swingarm
Fuel tank
Fuel cock
Seat set bracket and fuel tank
Fuel tank bracket and fuel tank
Side cover set bracket and fuel tank
Fitting band set screw and fuel tank
Air scoop and fuel tank
Air scoop and radiator guard
Air scoop and frame
TIGHTENING TORQUES
Thread size
Q'ty
M6 × 1.0
M6 × 1.0
M10 × 1.25
M8 × 1.25
M6 × 1.0
M4 × 0.7
M10 × 1.25
M22 × 1.5
M8 × 1.25
M6 × 1.0
M6 × 1.0
M8 × 1.25
M10 × 1.25
M10 × 1.25
M8 × 1.25
M8 × 1.25
M10 × 1.25
M6 × 1.0
M6 × 1.0
M6 × 1.0
M16 × 1.5
M14 × 1.5
M14 × 1.5
M14 × 1.5
M10 × 1.25
M10 × 1.25
M8 × 1.25
M8 × 1.25
M5 × 0.8
M8 × 1.25
M8 × 1.25
M6 × 1.0
M5 × 0.8
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
2-13
Tightening torque
Nm
m•kg
6
12
1.2
6
14
1.4
4
55
5.5
1
26
2.6
2
10
1.0
2
2
0.2
2
30
3.0
1
135
13.5
72
3
0.3
6
42
4.2
2
10
1.0
2
7
0.7
2
21
2.1
1
53
5.3
1
53
5.3
4
34
3.4
4
34
3.4
2
55
5.5
3
10
1.0
2
7
0.7
2
7
0.7
1
85
8.5
1
70
7.0
1
80
8.0
1
80
8.0
1
56
5.6
1
53
5.3
2
32
3.2
2
32
3.2
4
3
0.3
1
16
1.6
1
16
1.6
3
7
0.7
4
6
0.6
1
9
0.9
2
4
0.4
1
7
0.7
2
7
0.7
2
7
0.7
1
7
0.7
2
7
0.7
4
7
0.7
2
7
0.7
ft•lb
8.7
10
40
19
7.2
1.4
22
98
2.2
30
7.2
5.1
15
38
38
25
25
40
7.2
5.1
5.1
61
50
58
58
40
38
23
23
2.2
11
11
5.1
4.3
6.5
2.9
5.1
5.1
5.1
5.1
5.1
5.1
5.1

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