Stihl MS 271 Manual

80 MS 271 C, MS 291 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.
2710RA256 TG
1
12.2 Baffle
– Remove the air filter, 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).
2710RA257 TG
1
2710RA258 TG
1
: 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.
: Turn the filter base (1) in direction
of ignition side.
: Disengage the filter base (1) from
the buffer (2).
– Remove the contact spring,
b
7.7.4
2710RA198 TG
2
1
2710RA199 TG
1
2710RA259 TG
1
2

Stihl MS 271 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	0.24 L
Fuel tank capacity	0.5 L
Engine displacement	55.5 cm³
Engine power	3.8 hp
Power source	Gasoline

Weight and Dimensions

Weight	5600 g