Stihl MS 181 User Manual

89MS 171, MS 181, MS 211
The throttle rod (arrow) is secured in
position when the handle molding is
installed.
– Install the handle molding,
b 12.2
– Check operation.
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.5
14.7 Removing and Installing
the Intake Manifold
A damaged intake manifold can
result in engine running problems.
– Remove the shroud, b 8.4
– Remove the carburetor, b 14.3
– Remove the carburetor carrier,
b 14.7.1
533RA200 TG
: Take out the screws (arrows).
– Remove the intake manifold (1).
– Inspect the intake manifold (1)
and replace if necessary – even
very minor damage can cause
engine running problems, b 4.6
: Inspect and clean the sealing
face (arrow) on the cylinder,
b 16
The sealing face must be perfectly
clean and not be damaged in any
way. Components with damaged
sealing faces must be replaced.
533RA383 TG
1
1
533RA384 TG533RA385 TG
: Place the manifold (1) against the
cylinder.
: Fit the screws (arrows) and
tighten them down firmly.
– Install the carburetor carrier,
b 14.7.1
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.5
1
533RA386 TG533RA383 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