Engine Inspection and Maintenance
Table of tightening torque for fastening parts used in
Fastening position and part name
Cylinder cap nut M8
Cylinder cap nut M6
Cylinder cap bolt
Cylinder block connecting bend bolt
Cylinder block connecting nut
Flywheel locknut
Valve clearance adjuster
Gearshift changeover contact screw
Right side cover bolt
Front left cover bolt
Clutch separating disc bolt
Clutch locknut
Filter screen cover bolt
Tensioner pinch bolt
Drive gear locknut
Drive sprocket bolt
Engine oil pump screw
Ratchet upper and lower baffler screw
Components that cannot be reused:
Please be sure to use new paper pad, sealing ring, O ring, cotter pin, circlip, retainer and so on while
installing or assembling components.
Closing bolt
Coil screw
Spark plug
Engine
Tightening torque(N· m)
25~28
8~12
8~12
8~12
8~12
50~55
10~15
8~12
8~12
8~12
8~12
8~12
6~8
45~50
8~12
8~12
50~60
18~22
8~12
8~12
18~22