Stihl MS 261 User Manual

113MS 261, MS 261 C
: Position the end cover (1) so that
the stub (arrow) points in the
direction of the choke shutter.
– Fit the end cover (1) and line up
the holes.
: Fit the screws (1).
– Check position of metering
diaphragm and gasket, then
tighten down the screws firmly in
a crosswise pattern.
: Check the sealing ring (arrow)
and replace it if necessary
– Reassemble all other parts in the
reverse sequence.
5902RA384 TG
1
5902RA385 TG
1
1
1
1
12.6.2 Inlet Needle
– Remove the metering
diaphragm, b
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). Inspect
and replace if necessary.
5902RA386 TG
1
5902RA387 TG
12
5902RA388 TG
1
2
: If there is an annular
indentation (arrow) on the
sealing cone of the inlet needle,
fit a new inlet needle.
Installing
: Fit the inlet needle (1).
: Fit the spring (2) in the bore.
165RA348 TG
5902RA389 TG
1
2

Stihl MS 261 Specifications

General

Motor type	2-stroke motor
Chain gauge	1.6 mm
Chain pitch	3/8 \
Blade length	400 mm
Automatic oiling	Yes
Oil tank capacity	0.27 L
Fuel tank capacity	0.5 L
Engine displacement	50.2 cm³
Engine power	3.8 hp
Power source	Gasoline

Weight and Dimensions

Weight	5200 g