Stihl MS 261 User Manual

98 MS 261, MS 261 C
12. Fuel System
12.1 Air Filter
Dirty air filters reduce engine power,
increase fuel consumption and
make starting more difficult. The air
filter should be checked when there
is a noticeable loss of engine power.
– See also Troubleshooting,
b
3.6,
b
3.7
– Remove the shroud,
b
6.4
: Rotate the air filter (1)
counterclockwise and lift it away.
– Check the air filter and clean or
replace if necessary
– see instruction manual.
– Reassemble in the reverse
sequence.
5902RA450 TG
1
12.2 Baffle
– Remove the air filter, b
b
12.1
: Unscrew the nuts (arrows).
: Remove the baffle (1).
– Check the baffle and replace it if
necessary
– Reassemble in the reverse
sequence.
12.3 Filter Base
– Remove the air filter,
b
12.1
– Remove the baffle,
b
12.2
– Remove the choke rod,
b
10.3.3
– Remove the switch shaft,
b
10.1
: Push the short circuit wire (1) out
through the opening (arrow).
5902RA451 TG
1
5902RA452 TG
1
Models with heating
: Pull the wire (1) out of the
guide (arrows).
All models
: Pry the filter base (1) out of the
buffer (2).
: Swing the filter base (1) in
direction of throttle trigger until it
is clear of the studs.
5902RA453 TG
1
5902RA340 TG
2
1
5902RA454 TG
1

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