2-7
SPEC
E
TIGHTENING TORQUES
TIGHTENING TORQUES
SPECIFIED TORQUES
Part to tightened
Part name
Thread
size
Q’ty
Tightening torque
Remarks
N•m
kgf•m
ft•lb
ENGINE UNIT
Exhaust chamber
assembly – muffler stay 1
– muffler stay 3
1st
Bolt
M10
2
2
0.2
1.4
271
LT
4th
53
5.3
38
2nd
Bolt
M10
4
2
0.2
1.4
6th
40
4.0
29
3rd
Nut
—
2
2
0.2
1.4
5th
53
5.3
38
7th
Bolt
M10
1
2
0.2
1.4
9th
50
5.0
36
8th
Bolt
M10
1
2
0.2
1.4
10th
50
5.0
36
Exhaust chamber –
muffler
1st
Nut
—
2
15
1.5
11
271
LT
2nd
40
4.0
29
1st
Bolt
M8
3
15
1.5
11
2nd
34
3.4
25
1st
Nut
—
2
15
1.5
11
2nd
53
5.3
38
Exhaust chamber joint –
exhaust manifold
1st
Bolt
M8
5
18
1.8
13
271
LT
2nd
35
3.5
25
Exhaust chamber joint –
muffler stay
1st
Bolt
M10
1
2
0.2
1.4
3rd
50
5.0
36
2nd
Bolt
M8
2
2
0.2
1.4
271
LT
4th
38
3.8
27
Engine unit – engine mount
Bolt
M8
4
16
1.6
12
271
LT
Electrical box – hull
Bolt
M8
2
17
1.7
12
572
LT
YPVS cable bracket – YPVS cover
– cylinder
Bolt
M6
2
10
1.0
7.2
242
LT
Exhaust manifold –
cylinder
1st
Bolt
M10
8
23
2.3
17
271
LT
2nd
53
5.3
38
Reed valve – reed valve seat
Screw
M4
16
1
0.1
0.7
242
LT
YPVS valve assembly – cylinder
Bolt
M5
2
4
0.4
2.9
242
LT
YPVS valve lever shaft
Bolt
M4
2
3
0.3
2.2
242
LT
YPVS cover – cylinder
Bolt
M6
6
10
1.0
7.2
242
LT
Spark plug – cylinder head
Bolt
M14
2
25
2.5
18
Cylinder head – cylinder
1st
Bolt
M8
10
15
1.5
11
572
LT
2nd
38
3.8
27
Cylinder – crankcase
1st
Bolt
M10
8
23
2.3
17
572
LT
2nd
40
4.0
29
Starter motor lead – starter
motor
Nut
—
1
5
0.5
3.6
Flywheel magneto – crankshaft
assembly
Bolt
M10
1
75
7.5
54
E