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Tightening torque
Tread size
Tightening torque
Remarks
Part to be tightened
Nm
m·kg
ft·lb
[Engine]
Spark plug
M14 x P1.25
28
2.8
20
Cylinder head (bolt)
M8 x P1.25
20
2.0
14
Cylinder head (nut)
M10 x P1.25
25
2.5
18
Flywheel magneto
M16 x P1.9
73
7.3
53
Crankcase upper and lower
First:
M8 x P1.25
10
1.0
7.2
Final:
25
2.5
18
Tightening sequence
fOl
J6l
J6l
A
J---r
~@
~I
~
I~I
r -
.r==
:Q)
~?
~
~(c5'L .~
IL
~
1
~
~
~)j@
~
\gF=iQJf-L
Crankcase and gear unit
M8 x P1.25
25
2.5
18
Oil pump and gear unit
M5 x PO.8
8
0.8
5.8
with screw lock
Starter pulley
M8 x P1.25
15
1.5
11
Crankcase and engine bracket
M8 x P1.25
25
2.5
18
[Drive and track suspension]
Primary sliding sheave and cap
M6 x P1.0
11
1.1
8.0
Installation of primary sheave
Initial:
UNF 1/2"
100
10
72
Use motor oil
60
6.0
43
Loosen once and
retighten.
I nstallation of secondary sheave
M12 x P1.25
40
4.0
29
Bearing housing
M8 x Pl.25
23
2.3
17
Secondary shaft and bearing collar
Socket screw
6
0.6
4.3
Brake cliper and housing chain
M10 x P1.25
50
5.0
36
Installation of drive chain sprocket
M20 x Pl.25
60
6.0
43
Bolt
I nstallation of driven chain sprocket
M6
x
Pl.0
I
5.8
0.58
4.2
Bolt
Chain housing and frame
M8 x P1.25
23
2.3
17
Installation of front axle L. H.
M22 x Pl.0
85
8.5
61
and bearing
Front axle housing and frame
M8 x P1.25
23
2.3
17
Front pivot shaft
M10 x P1.25
65
6.5
47
Rear pivot shaft
M10
x
P1.25
65
6.5
47
Guide wheel shaft
M12xP1.25
80
8.0
58
Sliding runner
M6
x
Pl.0
2.5
0.25
1.7
Lower end bracket
M8 x P1.25
20
2.0
14
Lower end bracket and absorber
M6
x
P1.0
2
0.2
1.4
Loctite@
Front arm 1 and 2
M10 x P1.25
45
4.5
32
I nstallation of ski
M10 x P1.25
45
4.5
32
[Chassis]
Engine mounting bolt
M10 x P1.25
52
5.2
37
Ski runner
M8 x P1.25
14
1.4
10
Use self-locking
nut and Loctite@
-33-
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