The STIHL MS 181 C-BE Petrol 40cm Chainsaw is an easy-to-start machine that will deal with cutting jobs in the garden with ease. The MS 181 C-BE has a number of Comfort features, including the ErgoStart E system and Chain Quick Tensioning B, making this chainsaw virtually effortless to start and easy to maintain. Perfect for cutting firewood or felling trees up to 12 inches in diameter, it is a lightweight practical chainsaw with convenient features you can rely on. The economical STIHL 2-MIX engine with 1-in-4 channel technology features a high torque over a wide speed range. The chainsaw provides fuel savings of up to 20 compared to STIHL two-stroke engines in the same performance class without 2-MIX technology. Exhaust emissions are reduced by up to 50. The chainsaw features a single-lever controller to cover start, choke, throttle and stop functions. The ErgoStart ensures that the chainsaw can be started with ease thanks to only needing a third of the force of starting other chainsaws. The chain can be adjusted just by using a thumb wheel no tools needed, and the special catches over the fuel as well as the oil tanks means that openinglocking can also be done with out the need for carrying additional tools. 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. 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 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 fuelair ratio in the combustion mixture constant and hence also the engine power. The filter doesnt need to be cleaned until an appreciable drop in power occurs.