Stihl MS 291 Yard Boss® Chainsaw
Petrol Chainsaw 45cm/18'' bar
A 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
- Economical 2-MIX engine.
STIHL anti-vibration system
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 - 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.