STIHL MS 291 Yard Boss® Chainsaw

MS 291

$999.00

Powerful, robust chainsaw for all-round use, with up to 20% less fuel consumption and up to 50% fewer emissions compared to STIHL two-stroke engines of the same performance class without 2-MIX technology. Easy to maintain and service. Long-life air filter system with air routing, one piece engine cover. Great for cutting firewood. Environmentally-friendly and economical 2-MIX engine.

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Technical Details

Displacement(cc)

55.5

Power output(kW/bhp)

2.8/3.8

Weight(kg)

5.6

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
Compensator
Compensator

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.

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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