Yamaha BR250F Service Manual page 184

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MAINTENANCE SPECIFICATIONS
I
SPEC
Icr-I
Tightening torque:
Parts to be tightened
Tightening torque
Remarks
Nm
rn-kp
ft-lb
Primary sliding sheave and cap
11
1.1
8.0
Installation of primary sheave
First:
100
10
72
Tighten the bolts in
Final:
60
6.0
43
two stages. See NOTE.
Installation of secondary sheave
40
4.0
29
Bearing housing
23
2.3
17
Secondary shaft and bearing collar
6
0.6
4.3
Brake caliper and housing chain
50
5.0
36
Installation of drive chain sprocket
60
6.0
43
Bolt
Installation of driven chain sprocket
5.8
0.58
4.2
Bolt
Chain housing and frame
23
2.3
17
Installation of front axle L.H. and bearing
85
8.5
61
Front axle housing and frame
23
2.3
17
Front pivot shaft
65
6.5
47
Rear pivot shaft
65
6.5
47
Guide wheel shaft
80
8.0
58
Sliding runner
2.5
0.25
1.7
Lower end bracket
20
2.0
14
Lower end bracket and absorber
2
0.2
1.4
Apply LOCTITE®
Front arm 1 and 2
45
4.5
32
Installation of ski
45
4.5
32
NOTE:
_
Tightening steps:
1. Tighten the bolt. 120Nm (12 m • kg, 85 ft· Ib).
2. Loosen it completely.
3. Retighten it. 60Nm (6.0 m • kg, 43 ft • lb),
-25-

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