Stihl MS 181 User Manual

90 MS 171, MS 181, MS 211
14.7.1 Removing and Installing
the Carburetor Carrier
– Remove the carburetor, b 14.3
– Remove the throttle rod, b 14.6
– Pull off the spark plug boot and
unscrew the spark plug.
: Take out the sleeve (1).
: Unhook the wiring harness (1) at
the guide (arrow).
533RA388 TG
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– Disconnect the fuel hose from the
carburetor carrier.
: Pull the carburetor carrier (1)
upwards while pushing the
manifold flanges (arrows) back
and out of the bores in the
direction of the cylinder with one
hand.
– Remove and inspect the
carburetor carrier (1) and replace
it if necessary.
: Open the shutter (1), if fitted, and
push it out of its seat (arrow).
– Check the shutter and replace it if
necessary.
– Install in the reverse sequence.
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– Coat the flanges of the intake
manifold with STIHL Press Fluid,
b 16
: To pull the manifold flanges
through the bores in the
carburetor carrier, wind pieces of
string (1) (each about 20 cm long)
around the flanges and secure
them with a simple overhand
knot.
Do not use pliers, pointed or sharp-
edged tools.
The manifold flanges can also be
fitted by hand. Observe the
following points in addition to the
normal assembly procedures:
– Install the carburetor carrier and
position the manifold flanges
against the bores.
– Pull the manifold flanges into
position with one hand until they
completely fill the bores.
1
533RA393 TG
1
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Stihl MS 181 Specifications

General

Idle speed	- RPM
Motor type	2-stroke motor
Chain pitch	3/8 \
Blade length	400 mm
Product color	Black, Grey, Orange
Chain tensioner	Yes
Motor speed (max)	10000 RPM
Fuel tank capacity	0.266 L
Engine displacement	31.8 cm³
Power source	Gasoline
Sound power level	112 dB
Vibration emission	3.5 m/s²
Sound pressure level	100 dB

Weight and Dimensions

Weight	43004300 g