5FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85
3.2 Tightening Torques
DG and P (Plastoform) screws are used in polymer and light metal components. These screws form a
permanent thread when they are installed for the first time. They can be removed and installed as often as
necessary without impairing the strength of the screwed assembly, providing the specified tightening torque is
observed.
For this reason it is essential to use a torque wrench.
Fastener Thread size For component Torque Remarks
lbf.ft Nm
Screw IS-P4x16 Control handle/handle molding (outer/inner) 0.75 1.0 1)3)4)5)6)8)
Screw IS-M5x12 Control handle/clamp/drive tube 3.6 5.0 1)3)4)5)6)8)
Screw IS-M5x30 Control handle/handlebar/locknut with
washer (bike handle) 1.5 2.0 2)7)
Screw IS-P4x16 Control handle/handle molding (outer/inner)
(bike handle) 0.75 1.0 2)7)
Screw IS-P4x16 Control handle/handle molding (outer/inner)
(loop handled machine) 0.75 1.0 2)7)
Screw IS-M5x12 Control handle/clamp/right-hand screw
(loop handled machine) 3.6 5.0 2)7)
Screw IS-DG5x16 Loop handle 1.8 2.5 1)3)8)
Screw IS-M6x50 Loop handle/drive tube/nut 2.6 3.5 1)3)8)
Mutter M5 Filter housing/carburetor/flange/screw 3.0 4.0
Screw IS-B4.2x9.5 Spark arresting screen/muffler 0.75 1.0
Screw IS-M5x84 Gearbox housing, left/right 1.1 1.5 6)
Locknut M5 Gearbox housing, left/right
(locknut) 4.4 6.0 6)
Screw IS-M6x20 Gearbox housing/drive tube 7.5 10.0 4)6)
Screw IS-M5x25 Housing, fan side/starter side 7.0 9.5 1)2)3)5)7)8)
Screw IS-DG5x24 Gearbox housing/drive tube 6.6 9.0 2)7)
Screw IS-M5x10 Quadrant/gear housing 5.9 8.0 6)
Screw IS-M4x16 Guard plate/gearbox cover 2.6 3.5 6)
Screw IS-M5x16 Shroud/fan housing 2.6 3.5
Screw IS-M5x16 Shroud/starter cover/crankcase 2.6 3.5
Screw IS-M5x20 AV sleeve (clamp screw) 4.0 5.5
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