Chapter 6. Tightening Torque - Yamaha GP 338F Servise Manual

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TIGHTENING TORGUE
CHAPTER 6.
TIGHTENING TORQUE
ENGINE
Parts to be tightened
Size
Tightening
torque
Spark plug
0.55
in.
18.0 -
21 .6 ft-Ibs.
(14
mm)
(25
-
3.0
m-kgs.)
Cylinder head mounting nut
0
.3
in.
First 14.4 ft-Ibs.
(2.0 m-kgs.)
(8 mm.)
Final: 16.6
-
19.5
ft-Ibs.
(23 -
2 .7 m -kgs.)
Cylinder head mounting bolt
0.24 in.
14.4 ft-Ibs.
(6 mm)
(2.0
m-kgs.)
C.D.1. rotor mounting nut
0.6 in.
50.6 -
54.2 ft-Ibs.
(16
mm .)
(7.0
-
7 .5 m-kgs.)
Crank case mounting bolt
0.3 in.
First: 7.2 ft-Ibs.
(1.0 m-kg .)
(8
mm.)
Final: 14.4 ft-Ibs.
(2.0 m-kgs.)
Starter pulley mounting bolt
0.3
in.
7.2
-
8.6 ft-Ibs.
(8 mm.)
(1.0
-
1.2
m-kgs.)
Engine
mounting
nut
0.4
in.
21.6
ft-Ibs.
(10
mm .)
(3 .0 m-kgs)
DRIVE
Parts to be tightened
Size
Tightening torque
Initial: 43
.3
ft-Ibs.
(6
.0
m
-kgs.)
Primary sheave mounting bolt
0.47
in.
Loosen once and
retighten
:
(12
mm.)
28.9
ft-Ibs.
(4.0 m-kgs.)
Secondary sheave mounting nut
0.4
in.
21.6
-
32.5 ft-Ibs.
(10
mm)
(3.0
-
4.5 m-kgs.)
Bearing housing mounting nut
0.4
in.
36 .1
-
43.3 ft-Ibs.
(10 mm.)
(5.0
-
6.0 m -kgs.)
Chain drive sprocket mounting nut
0.55 in.
36
.1
-
43.3
ft -Ibs.
(14 mm.)
(5
.0 -
6.0 m-kgs.)
Chain driven sprocket mounting bolt
0.4 in.
36.1 -
43.3 ff-Ibs.
(10 mm .)
(5.0
-
6 .0 m-kgs)
Chain housing cap mounting bolt
0.24 in.
2.8
-
5.0
ft-Ibs.
(6 mm.)
(0.4
-
0.7 m-kg)
Chain housing mounting nut
0.3 in.
7.2
-
11.5 ft -Ibs.
(8 mm)
(1.0
-
1.6
m-kgs.)
Brake caliper body mounting bolt
0.4 in.
36.1
-
43.3 ft-Ibs.
(10 mm .)
(5.0 -
6.0 m-kgs.)
Front axle mounting nut
0.87 in.
50.6
-
52.8 ft-Ibs.
(22 mm.)
(70 -
7.3
m-kgs.)
Front axle housing mounting nut
0.3 in.
7.2
-
11.5
ft
-Ibs.
(8 mm.)
(1.0 -
1.6
m-kgs.)
Suspension shaft 3 mounting
bolt
0.3
in.
18.0
-
21.6
ft-Ibs.
(8
mm.)
(2.5
-
3.0 m-kgs.)
Suspension pivot shaft mounting nut
0.4 in.
36
.1 -
43.3
ft-Ibs.
(10
mm.)
(5.0
-
6.0 m-kgs.)
Rear axle mounting bolt
0.4 in
.
36
.1 -
43 .3
ft-Ibs.
(10 mm.)
(5.0
-
6 .0
m-kgs.)
- 57-

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