SPEC
73
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 tighten-
ing 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°.
Parts to be tightened
Tightening torque
Remarks
Nm
m•kg
ft•lb
Balancer
35
3.5
25
Balancer shaft bearing retainer
10
1.0
7.2
Apply LOCTITE
®
AC magneto rotor
130
13.0
94
Apply the engine oil.
AC magneto rotor cover bolt (M6
×
1.0)
×
11
12
1.2
8.7
AC magneto rotor cover bolt (M6
×
1.0)
×
1
12
1.2
8.7
Apply LOCTITE
®
Starter clutch
12
1.2
8.7
Apply LOCTITE
®
Stator coil
10
1.0
7.2
Apply LOCTITE
®
Pickup coil
6
0.6
4.3
Apply LOCTITE
®
AC magneto lead holder
10
1.0
7.2
Apply LOCTITE
®
Carburetor joint
10
1.0
7.2
Air filter case joint clamp screw
3
0.3
2.2
Starter motor
27
2.7
19
Fuel pump
10
1.0
7.2
Fuel pump stay
10
1.0
7.2
Fuel tank
10
1.0
7.2
Starter motor lead
7
0.7
5.1
Throttle cable locknut
6
0.6
4.3
Rectifier/regulator
7
0.7
5.1
Ignitor unit
7
0.7
5.1
Ground earth lead (engine mounting bracket)
25
2.5
18
Ground earth lead (Rectifier/regulator)
7
0.7
5.1
Frame cross member (front)
23
2.3
17
Frame cross member (side [upper])
47
4.7
34
Frame cross member (side [lower])
23
2.3
17
TIGHTENING TORQUE