Stihl MS 311 Manual

77MS 311, MS 391
: Fit the torsion spring (1) so that
its leg locates against the lever
(arrow).
: Attach the torsion spring to the
lever (arrow).
: Fit the lever (1) and tighten the
screw (2) moderately
– the lever must still turn freely.
: Hold the lever (2) steady.
: Rotate the lever (1) clockwise
until it butts against the stop on
lever (2) and engages the end of
the throttle shaft.
4903RA196 TG
1
4903RA197 TG
1 2
4903RA198 TG
1
2
: Hold lever (1) and lever (2)
together against the stop (arrow).
: Tighten down the screw (3)
firmly.
– Check operation.
– Reassemble all other parts in the
reverse sequence.
4903RA199 TG
2
3
1
4903RA200 TG
12.6.6 Adjusting Screws
Grommet has been removed for the
sake of clarity.
There are three adjusting screws on
the carburetor:
H = high speed screw (1)
L = low speed screw (2)
LA = idle speed screw (3)
If the carburetor cannot be adjusted
properly, the problem may be the
adjusting screws.
The high speed screw H has a
limiter cap, which has to be
removed before the screw is
removed.
– Remove the carburetor, b 12.5
– See also carburetor
troubleshooting, b 3.6
: Pull off the grommet (1).
0001RA382 TG
1
2
3
0001RA383 TG
1

Stihl MS 311 Specifications

General

Oil tank capacity	0.348 L
Fuel tank capacity	0.6 L
Power source	Gasoline

Weight and Dimensions

Weight	6200 g