STIHL MS 261 C-BM petrol chain saw with chain bar and bar cover Light, handy and powerful professional chain saw. The fuel dosage is electronically regulated and automatically adapts to weather conditions. Equipped with HD2 filter, oil pump with adjustable flow rate and special equipment details such as stainless steel muffler, anti-loss nuts on the sprocket cover and one-piece cover with three quick-release fasteners. Up to 20% less fuel consumption and up to 50% less harmful emissions than STIHL two-stroke engines with the same power but without 2-MIX technology. Technical data Engine displacement 50 cc Power 3 kW - 4 Hp Weight 5 kg Sound pressure level 105 dB(A) Sound power level 116 dB(A) Chain pitch .325" Available in the following configurations: 1- Bar length: 40 cm 2- Bar length: 45 cm Features - STIHL QUICK-TIP TENSIONER STIHL CHAIN TENSIONER WITHOUT USE OF TOOLS. With the STIHL quick chain tensioner, chain tensioning can be done quickly and without tools using the adjustment knob. Turning it to the left loosens the chain, turning it to the right tightens the chain. Furthermore, after tightening the sprocket cover, the guide bar locks automatically. - ADJUSTABLE FLOW OIL PUMP Different cutting lengths, types of wood and working techniques require different amounts of oil. The oil pump with adjustable flow rate allows the oil flow rate to be precisely adjusted according to requirements. It is possible to reduce the amount of oil fed in by up to 50%. - PARTICULARLY ENERGY-EFFICIENT STIHL 2-MIX ENGINE. With the STIHL 2-Mix engine, not only exhaust gas pollution can be reduced, but also fuel consumption and the resulting running costs. This 2-stroke engine requires little maintenance and uses fuel efficiently even at high performance. The fuel consists of a mixture of petrol and engine oil. The STIHL 2-Mix engine complies with the strict European Stage V emissions directive. - HD2 filter The new HD2 filter with polyethylene filter material has 70 per cent finer pores than felt and polyamide filters, enabling it to filter out even the finest dust particles. It is also water-repellent and therefore easy to clean. The PET-coated filter core can be fitted and removed in no time at all without tools. - MANUAL DECOMPRESSION EFFORTLESS START-UP. The decompression valve facilitates starting the device. During starting, part of the compressed mixture can be discharged from the cylinder by opening the valve. This protects the starting system and reduces the use of force on the starter rope. - AIR FILTER WITH LONG-LIFE PREFILTERING FOR LONGER FILTER LIFE. Pre-filtering removes coarse and larger particles from the air stream before they can reach the actual filter. The HD2 filter also keeps fine dust particles away from the engine, thus ensuring a long service life for the engine, longer cleaning intervals and easy servicing of the chain saw. Only if the chain saw is equipped with a prefilter and HD2 filter can one speak of a long-lasting air filter system. In fact, this system allows a considerably longer filter life than conventional air filter systems. - STIHL ANTI-VIBRATION SYSTEM MORE PLEASANT WORKING ENVIRONMENT. The power output of the implement generates vibrations that are felt especially in the handle area. The STIHL anti-vibration system's shock absorbers and compensating elements reduce the transmission of engine vibrations to the handle and thus to the user's body. As a result, the device can be supported more comfortably and allows you to work with less fatigue. - REDUCED MAINTENANCE COMPENSATOR. By means of pressure compensation, a regulating system inside the carburettor known as the compensator, it is ensured that despite increased fouling of the air filter, engine power, exhaust gas quality and fuel consumption remain more or less constant over a long period of time. Therefore it is only necessary to clean the air filter when a noticeable decrease in performance is noticed. This allows you to work for a long time without maintenance. - STIHL 1-in-4 duct technology STIHL 1-in-4 duct technology - high torque over a wide range of engine speeds - electric carburettor heating The carburettor heater, with temperature-dependent on/off switching, prevents the carburettor from freezing during winter use. - EASY-TO-USE COMBINATION LEVER WITH STOP FUNCTION. Only one starting position is required on the combination lever. After switching off, the control lever automatically returns to the operating position thanks to the stop function. If the engine is still warm, it can be restarted directly. - STIHL M-TRONIC SYSTEM RELIABLE WORK WITH TOP PERFORMANCE. With STIHL M-Tronic, you get the best performance from your machine right from the start. The fully electronic engine management regulates ignition timing and fuel metering in every operating condition, taking into account external factors such as temperature, altitude and fuel quality. - OIL AND FUEL TANK CAP FOR EASY AND QUICK OPENING AND CLOSING. Thanks to the tool-free opening and closing of the oil and fuel tank, the oil and fuel tank can be opened and closed in a few simple steps thanks to the bayonet lock. - STIHL EMATIC SYSTEM REDUCED OIL CONSUMPTION. The STIHL Ematic system consists of the STIHL Ematic or Ematic S guide bar, the STIHL Oilomatic chain and an adjustable oil pump. It ensures that the chain oil gets to where it's needed for lubrication. This can reduce oil consumption by up to 50%. If you often work in dusty environments or use longer guide bars, you can easily and quickly increase the oil quantity at any time with the new oil pump system. CZ