7
MS 780, MS 880
3.5
Tightening Torquese
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
M 4x8
Chain tensioner cover plate/crankcase
3.5
Screw
B 3.9x13
Cover plate/chain sprocket cover
2.0
Screw
M 4x12
Exhaust cover/muffler
4.0
4)
Screw
M 4x12
Brake band/crankcase
3.0
1), 4)
Screw
M 6x30
Collar stud/crankcase, for muffler (MS 780/
new MS 880)
12.0
1)
Screw
M 10x27
Collar stud / crankcase, for bar
30.0
1)
Screw
M 4x12
Cover, chain brake/crankcase
3.5
4)
Screw
M 4x12
Cover, oil pump/crankcase
3.5
4)
Screw
M 4x12
Cover, spur gear/crankcase
3.0
4)
M 10x1
Decompression valve
14.0
Nut
M 5
Filter cover, twist lock
1.0
Nut
M 5
Flange/carburetor/tank housing
5.0
Screw
P 6x32.5
Handlebar, right, stiffener/tank housing
8.0
2)
Screw
P 6x21.5
Handlebar, bottom/tank housing
8.0
2)
Screw
M 5x35
Hand guard/fan housing/crankcase
7.0
4)
Nut
M 6
Helper's handle/front handle/screw
(2-man saw)
6.0
Screw
M 5x20
Shroud/crankcase
7.0
4)
Nut
M 5
Shroud/cylinder
3.5
Nut
M 5
Chain catcher/spiked bumper/crankcase
6.0
Nut
M 6
Spiked bumper/chain sprocket cover
7.5
Screw
M 6x16
Spiked bumper/crankcase, top/locknut
7.5
4)
Screw
M 6x18
Spiked bumper/crankcase, top/locknut
7.5
4)
Screw
M 6x16
Spiked bumper/crankcase, bottom
7.5
1), 4
Screw
M 6x18
Spiked bumper/crankcase, bottom
(Z version)
7.5
1), 4)
Screw
M 5x25
Crankcase (old MS 880)
11.5
4)
Screw
M 5x28
Crankcase (MS 780/new MS 880)
10.0
4)
Screw
P 4x19
Bearing, switch shaft/tank housing
1.0
Screw
M 5x20
Fan housing/crankcase
7.0
4)
Carrier
M 14x1 L
Carrier / crankshaft
80.0
6)
Screw
M 4x12
Oil oump/crankcase, front top
3.5
4), 7)
Screw
M 4x12
Oil pump/crankcase, front bottom and rear
3.5
4)
