STIHL MS 391 Farm Boss® Chainsaw

MS 391

$1349.00

Easy-to-manage, high torque chainsaw for improved performance and user comfort when harvesting wood and sawing firewood. Extremely high torque over a wide range of speeds. Up to 20% less fuel consumption and up to 50% reduction in emissions compared to a STIHL 2-stroke engine of the same power output without 2-MIX technology. With controlled-delivery oil pump.

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Technical Details

Displacement(cc)

64.1

Power output(kW/bhp)

3.3/4.5

Weight(kg)

6.2

Standard Features

STIHL 2-MIX Engine
STIHL 2-MIX Engine
Advanced combustion technology
Advanced combustion technology
Pre-separation air filtration system
Pre-separation air filtration system
Anti-vibration system
Anti-vibration system
Decompression valve
Decompression valve

The new 2-MIX engine features an advanced stratified charge system that boosts power, whilst reducing consumption and pollution, significantly lowering unburned hydrocarbons in the exhaust. The result is a cleaner, more fuel efficient engine.

Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result: lower consumption and high torque across a broad rpm range.

The innovative long-life air filter system greatly extends the service life of the filter. Air routing removes larger particles of dirt, meaning the actual filter has less to do. So the saw can be used for longer without having to clean the filter.

Intense vibration at the handles of power tools can lead to longer-term effects of blood vessels in the hands and arms. STIHL have therefore developed an effective anti-vibration system where by the oscillations from the machines engine are dampened which significantly reduces vibrations at the handles.

The decompression valve is part of the easy start-system. The valve should be pressed before starting in order to reduce the compression pressure when starting, as well as the effort needed to pull the starter rope. The decompression valve is semi-automatic, meaning that it must be pressed manually before starting, but then closes automatically.

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