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Chainsaws

MS 661 Petrol Chainsaw

MS 661 C-M
MS 661 C-M
MS 661 C-M
MS 661 C-M
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Available to buy from STIHL Approved Dealers
Buy this product at one of our many local stores. Find a store and contact the dealer for information about the availability.

Technical details

Bar length55-80 cm
Displacement91.1 cm³
Displacement5.6 cu-in
Power5.4 kW
Weight7.6 kg 1)
1)Without fuel, without bar and chain

Features

The pictures shown are sample photos. The actual appearance of the equipment features and their specific attachment to the product may differ from the pictorial representations, but will have the same functionality.

Bar nuts are attached to the sprocket cover held, preventing the Bar nuts from getting lost of fall off when changing the cutting attachment.
CAPTIVE BAR NUTS
RELIABLE WORK WITH THE BEST PERFORMANCE. With STIHL M-Tronic, you’ll have the best performance from your work tool from the outset. Fully electronic engine management regulates the ignition timing and fuel metering in all work situations, taking into account external conditions such as temperature, altitude and fuel quality.
STIHL M-Tronic
FOR MORE PLEASANT WORK. Vibrations can occur when you put your power tools through their paces, and these are particularly noticeable in the grip area. The buffer and spring elements of the STIHL anti-vibration system reduce the transmission of engine vibrations to the handle area and therefore to your body. The result is that your power tool is more comfortable to hold and your work is much less tiring.
Antivibrationssystem
QUICK AND EASY TO USE. With tool-free fuel cap, you can open and close oil and fuel tanks in just a few simple steps, thanks to a bayonet closure.
TOOL-FREE FUEL CAP FOR OIL AND FUEL TANKS
EFFORTLESS START-UP. The decompression valve makes it easier to start your power tool. When starting, you can allow some of the compressed mixture to escape from the cylinder by opening the valve. This protects the start-up system and reduces the amount of force required on the starter cord.
Decompression valve
REDUCED MAINTENANCE. The compensator is a control system in the carburettor, which uses pressure compensation to ensure that engine performance, exhaust gas quality and fuel consumption remain virtually constant over a long period of time, despite increasing contamination of the air filter. You do not need to clean the air filter until there is a noticeable drop in performance. This means that you can work for a long time without maintenance.
Kompensator
REDUCES OIL CONSUMPTION. The STIHL Ematic system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a controlled-delivery oil pump. It ensures that the chain oil gets to where it is needed for lubrication. This allows you to reduce oil consumption by up to 50%. If you often work in dusty conditions or if you use long guide bars, you can quickly and easily increase the oil quantity at any time with the new oil pump system.
Ematic-Kettenschmiersystem
FOR SIMPLE AND SECURE RE-TENSIONING. Side-mounted chain tensioning allows for protected, easy and quick chain tensioning and replacement. The tensioning screw is inserted laterally through the sprocket cover.
SIDE-MOUNTED CHAIN TENSIONING
Different bar lengths, wood types and sawing techniques require different amounts of oil. The controlled-delivery oil pump allows the user to select just the right amount of oil for the job.
Mengenregulierbare Ölpumpe
The HD2 filter protects your power tool’s engine against even the finest dust, ensuring a longer service life and reduced wear. The filter made from robust PET material and is oil and water-repellent, making it easier to clean the filter. The filter cartridge can also be easily replaced without tools.
HD2-Filter bei MS 261
HIGHLY POWER-EFFICIENT. With the STIHL 2-MIX engine, you can reduce exhaust emissions and fuel consumption, and therefore operating costs. This 2-stroke engine is low-maintenance and uses fuel efficiently even at high power levels. Use a mixture of petrol and engine oil as fuel. The STIHL 2-MIX engine complies with the strict EU Stage V emissions directive.
STIHL 2 MIX engine

EXTREMELY POWERFUL 5.4KW PROFESSIONAL SAW

The STIHL MS 661 C-M professional chainsaw is a remarkable powerhouse, delivering consistent and robust performance. It integrates cutting-edge technology with an optimal power-to-weight ratio of 1.4 kg/kW, making it perfectly suitable for demanding forestry applications. This petrol-driven chainsaw excels, even in efficiently and swiftly processing thick wood.


At its core is the 5.4 kW (7.3 hp) STIHL 2-MIX engine, ensuring unwavering high performance with the help of STIHL M-Tronic. The controlled-delivery oil pump guarantees a reliable oil supply to the cutting attachment, accommodating long bars.


Additional features of the STIHL MS 661 C-M chainsaw include the HD2 air filter, which efficiently eliminates even the finest dust particles from the air. The STIHL anti-vibration system, which enhances comfortable operation while safeguarding your muscles and joints. Tool-free fuel caps that save both time and effort during chainsaw refilling.

MS 661 C-M

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