6 MS 311, MS 391
2.5 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
Nm
Remarks
Screw P 4x14 Chain tensioner cover/engine housing 1.5
Screw P 4x12 Brake band/engine housing 2.0
Collar screw M 10 Collar stud for bar / engine pan 30.0 1)
Collar screw D 8x24 Collar stud for bar / engine housing 16.0
Screw P 5x16 Cover, chain brake / engine housing 4.0
M 10x1 Decompression valve 14.0
Screw P 5x16 Handlebar/plug, AV spring 3.0
Screw P 6x26.5 Handlebar / tank housing, right (polymer) 7.0
Screw P 6x26.5 Handlebar / tank housing, bottom (polymer) 7.0
Screw P 6x25 Hand guard / fan housing 8.0
Screw M 6x30 Shroud / engine housing 10.0
Screw P 6x38 Chain catcher / bearing plug 6.0
Screw P 5x16 Spiked bumper / engine housing 4.0
Screw M 4x12 Manifold/cylinder 4.0 3)
Screw P 6x21.5 Bearing plug / engine housing 6.0
Screw M 5x16 Bearing plug/cylinder 10.0 4)
Screw P 5x20 Fan housing / engine housing 4.0
Screw P 4x12 Air baffle / engine housing 2.0
Carrier M 12x1 LH Carrier / crankshaft 50.0
Screw M 6x25 Engine housing / cylinder, stage 1 4.0 3)
Screw M 6x25 Engine housing / cylinder, stage 2 12.0 3)
Screw D 4x18 Oil pump 4.0 3)
Screw M 5x16 Muffler / cylinder 10.0 1) 3)
Screw M 8x1 Flywheel/crankshaft 33.0 5)
Nut M 5 Carburetor/collar stud 3.5
Screw P 4x14 Pre-separator / engine housing 2.0
Screw P 4x12 Cover plate/fan housing 2.0
Spark plug M 14x1.25 Spark plug 25.0
Screw D 4x18 Ignition module / engine pan 4.0 3)
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