7
TIGHTENING TORQUE SPECIFICATIONS
Flywheel
Crankshaft assembly M6x16 Hex head bolt
9.0 - 11.0
1
Gear case assembly
Shaft pipe complete
M5x14 Hex socket head bolt with
WR
5.0 - 8.0
2
M5x25 Hex socket head bolt
5.0 - 8.0
1
Pipe holder
Pipe clamp
M5x25 Hex socket head bolt with W 5.0 - 8.0
2
Shaft pipe complete
Hanger set
M5x20 Pan head screw
1.0 - 1.5
1
Shaft pipe complete
Pipe bracket 1
M5x12 Hex socket head bolt
4.0 - 6.5
1
Pipe bracket 2
Pipe bracket 3
M5x18 Hex socket head bolt
4.0 - 6.5
2
Control lever assembly
(Bike handle)
Handle 19
M5x35 Hex socket head bolt with W 1.5 - 2.5
1
Grip set
Handle 19
M5x35 Hex socket head bolt with W 1.5 - 2.5
1
Control lever assembly
(Loop handle)
Shaft pipe complete
M5x14 Hex socket head bolt with
WR
2.0 - 3.0
2
Cylinder block assembly
Crankcase
M5x14 Hex socket head bolt
4.0 - 6.5
8
Crankcase
Oil case
M5x14 Hex socket head bolt
4.5 - 6.5
4
Retainer plate
Oil case
M5x10 Hex socket head bolt
3.0 – 4.0
1
Ignition coil
Cylinder block
assembly
M4x20 Hex socket head bolt with
WR
2.0 – 3.0
2
Cam gear cover
Cylinder block
assembly
M5x14 Hex socket head bolt
4.5 – 6.5
3
Rocker arm assembly
Adjust screw
M5 Hex nut
5.0 – 6.5
2
Rocker cover complete
Cylinder block
assembly
M5x16 Hex socket head bolt with
WR
4.5 – 6.5
3
Spark plug
Cylinder block
assembly
Spark plug
9.0 – 13.0
1
Clutch shoe
Flywheel
M6
×
25 Shoulder hex bolt
7.0 – 10.0
2
Clutch case
Crankcase
M5x16 Hex socket head bolt
4.0 – 5.5
3
Recoil starter set
Crankcase
M4x25 Pan head screw
1.0 – 2.0
2
Tank guard
Clutch case
M5x12 Pan head screw
(for some models)
2.0 – 3.0
2
Exhaust muffler
Cylinder block
assembly
M5x40 Hex socket head bolt
7.0 – 8.0
2
Muffler cover
Exhaust muffler
M5x5 + Truss head screw
1.5 – 2.0
1
Insulator
Cylinder block
assembly
M5x18 Hex socket head bolt with
WR
4.0 – 5.5
2
Carburetor
Cylinder block
assembly
M5x68 +Pan head screw
2.0 – 3.0
The action of
Choke lever is in
trouble, do
adjustment within
the above torque
range.
2
Air cleaner cover
Cleaner plate
assembly
M5x14 Pan head screw
0.5 – 1.0
1
Cylinder cover
Clutch case
M4x16 Pan head screw
1.0 – 2.0
2
Crankcase
M5x12 Pan head screw
2.0 – 3.0
2
Oil gauge
Oil case
Oil gauge
0.4 – 0.7
1
Stand set
Clutch case
M5x14 Pan head screw
2.0 – 3.0
2
Pulley
Crankshaft assembly Pulley
4.0 – 7.0
1
Parts to fasten
Fastener
Tightening torque
(N
・
m)
Q’ty
*W: Spring washer R: Flat washer
40 / 40