SPEC
TIGHTENING TORQUES
2-8
TIGHTENING TORQUES
ENGINE TIGHTENING TORQUES
Tightening
Part to be tightened Part name
Thread
Q’ty
torque
Remarks
size
Nm m•kg
Spark plug – M 14 1 20 2,0
Cylinder head and cylinder Nut M 7 4 14 1.4
Cylinder Stud M 7 4 17 1.7
Air protector 2 (A/C) Screw M 6 3 7 0.7
Air protector 3 (A/C) Screw M 6 1 2 0.2
Fan (A/C) Screw M 6 3 7 0.7
Automatic lubrication pump Screw M 5 2 4 0.4
Reed valve Bolt M 6 4 11 1.1
Air filter Screw M 6 1 9 0.9
Carburettor cover Screw M 4 2 2 0.2
Exhaust pipe Screw M 6 2 9 0.9
Muffler Bolt M 8 2 26 2.6
Exhaust pipe protector Bolt M 6 2 0.7 0.7
Exhaust pipe cover Bolt M 6 5 0.7 0.7
Crankcase Bolt M 6 6 10 1.0
Cover of crankcase 2 Bolt M 6 6 10 1.0
Cover of crankcase 1 Bolt M 6 12 12 1.2
Air conduct (A/C) Screw M 6 2 7 0.7
Crankcase bracket Screw M 6 2 7 0.7
Drain bolt Bolt M 8 1 18 1.8
Oil plug Plug M 14 1 3 0.3
Intermediate gear plate Screw M 6 2 8 0.8
Kickstarter Bolt M 6 1 9 0.9
Starter motor Bolt M 6 2 13 1.3
Clutch housing Nut M 10 1 40 4.0
Primary pulley Nut M 12 1 45 4.5
Magnet base Screw M 6 2 8 0.8
Magnet rotor Nut M 12 1 43 4.3
Cranckshaft oil seal stay Bolt M 6 1 8 0.8
Water pump housing cover (L/C) Bolt M 6 3 7 0.7
Water pump driver bolts (L/C) Bolt M 6 3 6.5 0.65
Magnet cover (L/C) Bolt M 6 3 6.5 0.65