Stihl MS 181 User Manual

71MS 171, MS 181, MS 211
Check correct installed position.
: Insert the valve in the housing
bore (arrow).
: Use a 6 mm drift to carefully drive
in the new valve from outside –
note installed depth.
: Installed depth of valve:
a = about 2.5 mm
– Reassemble all other parts in the
reverse sequence.
533RA293 TG
533RA294 TG
219RA479 TG
13.5 Oil Tank Cap
See instruction manual.
– Open the tank cap.
: Disconnect the nipple inside the
tank (arrow).
– Inspect the tank cap and replace
sealing ring or the cap.
– Install in the reverse sequence.
– Carry out leakage test.
533RA187 TG
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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