Description
The STIHL MS 181 chainsaw is full of new features including pre-separation which reduces the amount of saw dust which gets as far as the air filter by 90%, vastly reducing maintenance required.
Exceptionally comfortable chainsaw to operate with an excellent anti-vibration system and a single lever control for choke lever and on/off switch. The new STIHL 2-MIX engine reduces fuel consumption and emissions by 20%.
Perfect for felling small trees, clearing up around the house and for cutting firewood.
Standard features
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Advanced combustion technology
Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.
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Anti-vibration system
Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine's engine are dampened which significantly reduces vibrations at the handles.
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Pre-separation air filtration system
STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.
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Compensator
This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn't need to be cleaned until an appreciable drop in power occurs.
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Single-lever master control
All important functions such as start, choke, throttle and stop are operated via a single lever.
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Side chain tensioner
The tensioning screw can be found on the side of the chain saw through the sprocket cover. This removes the need for contact with the sharp saw chain.
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Ematic chain lubrication system
The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption by up to 50%.
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Tool free filler caps
Technical data
| Technical data | Value |
|---|---|
| Displacement cm³ | 31.8 |
| Power output bhp | 2 |
| Weight kg 1) | 4.3 |
| System weight kg 2) | 4.98 / 5.08 |
| Power-to-weight ratio kg/kW | 2.9 |
| Sound pressure level dB(A) 3) | 100 |
| Sound power level dB(A) 3) | 112 |
| Vibration values left/right m/s² 4) | 3.5/3 |
| STIHL Oilomatic saw chain pitch/type | 3/8" P PM3 |
| Oil pump | Not adjustable |
| Tank volume l | 0.27 |
| Chain pitch | 3/8" P |
| Chain tensioning | Side chain tension |
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