Stihl MS 311 Manual

73MS 311, MS 391
Installing
– Note installed positions of
metering diaphragm (2) and
gasket (1).
: Fit the gasket (1) and metering
diaphragm (2) on the pegs
(arrows).
: Position the end cover (1) so that
the lever (arrow) points in the
direction of the choke shutter.
– Move the end cover (1) a little
until the pegs engage the holes in
the end cover.
4903RA188 TG
1
2
4903RA189 TG
1
: Fit the screws (arrows).
– Check position of metering
diaphragm and gasket, then
tighten down the screws firmly in
a crosswise pattern.
The end cover must be in line with
the edge of the carburetor body.
: Check operation – throttle shaft
lever (1) must engage the air
valve lever (2).
– Reassemble all other parts in the
reverse sequence.
4903RA190 TG4903RA191 TG
1
2
12.6.2 Inlet Needle
– Remove the metering
diaphragm, b 12.6.1
: Take out the screw (1).
: Pull the inlet control lever (1) with
spindle (2) out of the inlet
needle’s groove.
The small spring under the inlet
control lever may pop out.
: Remove the inlet needle (1).
– Remove the spring (2).
0001RA353 TG
1
0001RA361 TG
1
2
0001RA362 TG
1
2

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