2-5
MAINTENANCE SPECIFICATIONS
SPEC
Part to be tightened
Thread size
Q’ty
T ightening torque
Nm
m•kg
ft•lb
Spark plug
M14
×
1.25
1
20
2.0
14
Cylinder head
(nut)
M 8
×
1.25
6
25
2.5
18
(stud)
M 8
×
1.25
6
13
1.3
9.4
Cylinder
(nut)
M10
×
1.25
4
35
3.5
25
(stud)
M10
×
1.25
4
13
1.3
9.4
Power valve :
Holder
M 5
×
0.8
2
6
0.6
4.3
Link rod
M 5
×
0.8
2
6
0.6
4.3
Push rod
M 5
×
0.8
1
5
0.5
3.6
Thrust plate
M 5
×
0.8
1
6
0.6
4.3
Side holder
M 5
×
0.8
4
4
0.4
2.9
Link lever
M 4
×
0.7
1
4
0.4
2.9
Pulley
M 4
×
0.7
2
4
0.4
2.9
Cover
M 5
×
0.8
4
4
0.4
2.9
Governor fork
M 4
×
0.7
2
5
0.5
3.6
Housing
M 5
×
0.8
4
5
0.5
3.6
Impeller
M 8
×
1.25
1
14
1.4
10
Water pump housing cover
M 6
×
1.0
4
10
1.0
7.2
Coolant drain bolt
M 6
×
1.0
1
10
1.0
7.2
Radiator
M 6
×
1.0
6
10
1.0
7.2
Radiator hose clamp
M 6
×
1.0
8
1
0.1
0.7
Air filter element
M 6
×
1.0
1
2
0.2
1.4
Carburetor joint
M 6
×
1.0
5
10
1.0
7.2
Air filter case
M 6
×
1.0
2
4
0.4
2.9
Air filter joint
M 5
×
0.8
5
1
0.1
0.7
Reed valve
M 3
×
0.5
4
1
0.1
0.7
Exhaust pipe
M 6
×
1.0
2
12
1.2
8.7
Exhaust pipe stay (front)
M 8
×
1.25
1
25
2.5
18
Exhaust pipe stay (rear)
M 6
×
1.0
1
12
1.2
8.7
Silencer (front)
M 6
×
1.0
1
12
1.2
8.7
Silencer (rear)
M 6
×
1.0
1
7
0.7
5.1
Fiber (silencer)
M 6
×
1.0
2
10
1.0
7.2
Crankcase
M 6
×
1.0
11
14
1.4
10
Crankcase cover (left)
M 6
×
1.0
5
8
0.8
5.8
Chain cover
M 6
×
1.0
2
8
0.8
5.8
Crankcase cover (right)
M 6
×
1.0
9
10
1.0
7.2
Bearing plate cover (drive axle left)
M 6
×
1.0
2
10
1.0
7.2
Bearing plate cover (main axle right)
M 6
×
1.0
2
10
1.0
7.2
Holder
M 6
×
1.0
2
10
1.0
7.2
Oil drain bolt
M12
×
1.5
1
20
2.0
14
Oil check bolt
M 6
×
1.0
1
10
1.0
7.2
Kick starter
M 8
×
1.25
1
30
3.0
22
Ratchet wheel stopper
M 6
×
1.0
2
10
1.0
7.2
Clutch cover
M 6
×
1.0
6
10
1.0
7.2
Primary drive gear
M10
×
1.25
1
55
5.5
40
Clutch boss
M20
×
1.0
1
75
7.5
54
5MW-9-30-2 7/3/00 2:20 PM Page 6
