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Parts to be tightened
Crankcase (M9 × 1.25)
Crankcase (M8 × 1.25)
Crankcase (M6 × 1.0)
Primary sheave drive shaft assembly bolt
Connecting rod and cap
Balancer
Balancer shaft bearing retainer
A.C. magneto rotor
A.C. magneto rotor cover bolt (M6 × 1.0) × 11
A.C. magneto rotor cover bolt (M6 × 1.0) × 1
Starter clutch
Stator coil
Pickup coil
A.C. magneto lead holder
Carburetor joint
Air filter case joint clamp screw
Starter motor
Fuel pump
Fuel pump stay
Fuel tank
Starter motor lead
Throttle cable locknut
Rectifier/regulator
Ignitor unit
Ground earth lead (engine mounting bracket)
Ground earth lead (Rectifier/regulator)
Frame cross member (front)
Frame cross member (side [front])
Frame cross member (side [rear])
NOTE:
*1: Tighten the cylinder head bolts to 25 Nm (2.5 m · kg, 18 ft · lb) in the proper tightening sequence, loosen
and retighten the cylinder head bolts to 25 Nm (2.5 m · kg, 18 ft · lb) in the proper tightening sequence,
and then tighten the cylinder head bolts further to reach the specified angle 180° in the proper tightening
sequence.
*2: Tighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, loosen and
retighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, and then
tighten the crankcase bolts further to reach the specified angle 65 ~ 70° in the proper tightening
sequence.
*3: Tighten the connecting rod nuts to 20 Nm (2.0 m · kg, 14 ft · lb), and then tighten the connecting rod nuts
further to reach the specified angle 120°.
TIGHTENING TORQUE
Tightening torque
Nm
m · kg ft · lb
*2
Apply the engine oil.
See NOTE.
24
2.4
17
Apply the engine oil.
12
1.2
8.7
Apply the engine oil.
12
1.2
8.7
*3
See NOTE.
35
3.5
25
10
1.0
7.2
Apply LOCTITE
130
13.0
94
Apply the engine oil.
12
1.2
8.7
12
1.2
8.7
Apply LOCTITE
12
1.2
8.7
Apply LOCTITE
10
1.0
7.2
Apply LOCTITE
6
0.6
4.3
Apply LOCTITE
10
1.0
7.2
Apply LOCTITE
10
1.0
7.2
3
0.3
2.2
27
2.7
19
10
1.0
7.2
10
1.0
7.2
10
1.0
7.2
7
0.7
5.1
6
0.6
4.3
7
0.7
5.1
8
0.8
5.8
25
2.5
18
7
0.7
5.1
23
2.3
17
45
4.5
32
23
2.3
17
62
SPEC
Remarks
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