Stihl MS 311 Manual

79MS 311, MS 391
Pre-installing limiter cap
Always install a new limiter cap.
: Push the new limiter cap (1) on to
the high speed screw (H) as far
as the detent (arrow)
– do not push fully home.
The basic setting is performed
through the pre-installed limiter cap
with screwdriver 5910 890 2304.
– Reassemble in the reverse
sequence.
– Carry out the basic setting,
b 12.7.1
165RA372 TG
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12.7 Carburetor Adjustment
12.7.1 Basic Setting
The basic setting is necessary only
if the high speed screw (H) or low
speed screw (L) has to be replaced
or after cleaning and adjusting the
carburetor from scratch.
It is necessary to carry out the basic
setting after removing the limiter
cap.
The carburetor, air filter and
grommet are installed, the adjusting
screws fitted and the new limiter cap
pre-installed.
– Check chain tension and adjust if
necessary.
– Inspect the spark arresting
screen (if fitted) and clean or
replace if necessary, b 3.7 or
b 6.1
– Check the air filter and clean or
replace if necessary, b 12.1
For the sake of clarity the adjusting
screw is shown on the exposed
carburetor.
: Starting with the high speed
screw H (1) against its seat,
open it one full turn counter-
clockwise
– this is the basic setting.
: Starting with the low speed screw
L (2) against its seat,
open it one full turn counter-
clockwise
– this is the basic setting.
– Warm up the engine.
Setting disk 5910 893 6600 may be
fitted on the screwdriver
5910 890 2304 to simplify
adjustments.
0001RA391 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