Product Information Weight-optimised high-power saw with handle and heated carburettor With economical 2-MIX engine. The STIHL M-Tronic guarantees optimum engine performance at all times, while its single starting position and stop button function mean easy starting. Controlled-delivery high-performance oil pump for high pumping capacity, HD2 filter with radial seal, tool-free fuel caps for simple, safe refuelling

Key Features

Decompression valve The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.Heated handles (W)Zoom Heated handles (W) These provide additional comfort in cold weather and can be engaged with a switch on the left handle as required.STIHL M-Tronic (M)Zoom STIHL M-Tronic (M) This fully electronic engine management system adjusts ignition timing and fuel metering in all operating modes. It also takes external conditions such as temperature, altitude and fuel quality into account. It ensures consistent engine performance, a constant maximum speed and superb acceleration. M-Tronic makes manual carburettor adjustments unnecessary. Thanks to electronic cold/warm start recognition, now there is only one start position on the combi-lever. The engine starts after fewer pulls and with no change of position, and can immediately accelerate up to speed - even after a cold start. M-Tronic also remembers the settings from the last time the tool was used. So when external conditions are the same, optimal engine performance is available every time you start up again.STIHL 2-MIX-EngineZoom STIHL 2-MIX-Engine 1-in-4 channel technology. The economical STIHL 2-MIX engine with 1-in-4channel 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%.Anti-vibration systemZoom Anti-vibration system 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 machine's engine are dampened which significantly reduces vibrations at the handles. HD2 filter with radial sealZoom HD2 filter with radial seal The new HD2 air filter, made from PET material and featuring a radial seal, prevents the intake of fine dust particles. The hermetic seal increases the service life of the engine and reduces wear.CompensatorZoom Compensator 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.Captive nutsZoom Captive nuts When changing the cutting attachment, you will not risk losing the nuts on the sprocket. The MS 261 is the first STIHL chainsaw to be equipped with the captive nuts. A great advantage for all users.Side chain tensionerZoom Side chain tensioner The tensioning screw can be found on the side of the chain saw through the sprocket cover. This removes the need for contact with the sharp saw chain.STIHL ElastoStartZoom STIHL ElastoStart STIHL ElastoStart reduces the shock caused by the compression of the engine during starting. The compression shock is taken away from the user's joints and muscles through a spring or rubber element in the starter handle.Carburetor heatingZoom Carburetor heating N/ATool free filler capsZoom Tool free filler caps Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.Stop button functionZoom Stop button function After the machine is turned off, the control lever immediately moves back into the operating position. This allows a warm machine to be restarted again immediately.Optimised sprocket coverZoom Optimised sprocket cover The flatter, narrower sprocket cover with integrated slide rails reduction