1. General Information
1-12
Torque Values
The torque values listed in below are for more important tightening torque values. Please see standard
values for those not listed in the table.
Standard Torque Values for Reference
Type Tighten Torque Type Tighten Torque
5 mm bolt、nut
0.45~0.6kgf-m 5 mm screw 0.35~0.5kgf-m
6 mm bolt、nut
0.8~1.2kgf-m
6 mm screw、SH nut
0.7~ 1.1kgf-m
8 mm bolt、nut
1.8~2.5kgf-m
6 mm bolt、nut
1.0 ~1.4kgf-m
10 mm bolt、nut
3.0~4.0kgf-m
8 mm bolt、nut
2.4 ~3.0kgf-m
12 mm bolt、nut
5.0~6.0kgf-m
10 mm bolt、nut
3.5~4.5kgf-m
Engine Torque Values
Item Q’ty Thread Dia. (mm) Torque Value(kgf-m) Remarks
Cylinder stud bolt 4 10 1.0~1.4
Cylinder head nut 4 8 3.6~4.0
Cylinder head right bolt 2 8 2.0~2.4
Cylinder head side cover bolt 2 6 1.0~1.4
Cylinder head cover bolt 4 6 1.0~1.4
Cylinder head stud bolt (inlet pipe) 2 6 1.0~1.4
Cylinder head stud bolt (EX. pipe) 2 8 2.4~3.0
Air inject pipe bolt 4 6 1.0~1.4
Air inject reed valve bolt 2 3 0.07~0.09
Tappet adjustment screw nut 4 5 0.7~1.1 Apply oil to thread
Spark plug 1 10 1.0~1.2
Camshaft Chain Tensioner bolt 2 6 1.0~1.4
Carburetor insulator bolt 2 6 0.7~1.1
Oil pump screw 2 3 0.1~0.3
Water pump impeller 1 7 1.0~1.4
Engine left cover bolt 9 6 1.1~1.5
Engine oil draining bolt 1 12 3.5~4.5
Engine oil strainer cap 1 30 1.3~1.7
Mission draining bolt 1 8 0.8~1.2
Mission filling bolt 1 10 1.0~1.4
Clutch driving plate nut 1 28 5.0~6.0
Clutch outer nut 1 14 5.0~6.0
Drive face nut 1 14 8.5~10.5
ACG. Flywheel nut 1 14 5.0~6.0
Crankcase bolt 7 6 0.8~1.2
Mission case bolt 7 8 2.6~3.0
Muffler mounting bolt 3 10 3.2 ~3.8
Muffler mounting nut 2 8 1.0 ~1.2
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