Stihl MS 261 C-BM Chainsaw

• The professional STIHL MS 261 C-BM chainsaw is designed for versatile use. It is particularly suitable for forestry work in light to medium stands
• The powerful STIHL 2-MIX engine with 3.0 kW (4.1 hp) delivers the necessary power with low fuel consumption. This petrol chainsaw features STIHL M-Tronic, allowing for fast work and optimal engine performance at a constant maximum speed
• Starting is assisted, and ignition timing and fuel supply are automatically adjusted
• High cutting performance with reduced weight is achieved with the STIHL RS Pro 0.325" chainsaw chain combined with the STIHL Light 04 guide bar
• The STIHL quick chain tensioning system enables uninterrupted work by making chain retensioning tool-free, easy, and safe when necessary
• The STIHL Ematic system ensures that every drop of oil is delivered exactly where needed. This helps maintain consistent performance over time with minimal interruptions
• Additionally, the long-life air filtration system with pre-separation and the HD2 air filter extend operating time. This feature also results in longer maintenance intervals

Supplied with 40 cm bar and chain
LIGHT 04 40 cm chainsaw bar . 325 P 1.3 mm 67 links
RS Pro 40 cm . 325 P 1.3 mm 67 links chainsaw chain

Supplied with 45 cm bar and chain
LIGHT 04 45 cm chainsaw bar . 325 P 1.3 mm 74 links
RS Pro Chainsaw Chain 45 cm .325 P 1.3 mm 74 Links

TECHNICAL DATA 

Displacement: 50.2 cm³
Power: 3 kW/4.1 HP
Weight: 5.1 kg (without fuel, bar and chain)
Power-to-weight ratio: 1.7 kg/kW
Sound pressure level: 105 dB(A)
Sound power level: 114 dB(A)
Vibration value left/right: 3.5 m/s²
Chain pitch: .325"

EQUIPMENT

Long-life air filter with pre-filtering
This innovative system allows for a significantly longer filter lifespan. Thanks to the pre-filtering, it removes coarser dirt particles, reducing the workload of the actual filter. The chainsaw can operate longer without needing filter cleaning compared to a chainsaw without this type of filter.

HD2 Filter
The new HD2 filter with polyethylene filtering material has pores 70% finer than felt and polyamide filters, enabling it to filter even the finest dust. Additionally, it is oil-repellent, making it easy to clean. The PET-coated filter core can be mounted and dismounted quickly without tools.

Compensator
Ensures a constant fuel-air mixture even when the air filter becomes dirtier.

ElastoStart
Thanks to the exclusive STIHL ElastoStart starting handle, combined with the manual fuel pump and the decompression valve, kickbacks during ignition are significantly reduced.

Ematic chain lubrication system
Depending on the type of guide bar and wood, the STIHL Ematic system reduces chain oil consumption by up to 50%. It consists of an Ematic guide bar, Oilomatic chain, and an oil pump with adjustable and reduced flow rate. The lubricant is thus delivered precisely and with minimal loss exactly where it is needed.

Anti-vibration system
Special damping zones, precisely positioned, reduce the transmission of vibrations from the engine and chain to the handle and grip.

Tool-free fuel cap
Special caps for the fuel tank and oil tank allow easy opening and closing without tools.

STIHL M-Tronic (M)
Fully electronic fuel metering and ignition timing adjustment. The STIHL M-Tronic (M) system ensures optimal engine performance, constant speed, and excellent acceleration behavior in every operating condition. Manual carburetor adjustment is no longer necessary.

Adjustable oil pump
Different cutting lengths, types of wood, and working techniques require varying amounts of oil. The adjustable oil pump allows precise regulation of the oil flow rate according to needs. It is possible to reduce the supplied oil quantity by up to 50%.

Kombi lever with stop button
The lever automatically returns to the operating position (I) after stopping.

Decompression valve
The decompression system automatically opens the intake valve. This absorbs pressure peaks and reduces the amount of force needed on the starter rope.

Electric carburetor heating
The carburetor heating, which switches on and off depending on the temperature, prevents the carburetor from freezing during winter use.

Quick chain tensioner (B)
The STIHL quick chain tensioner (B) allows you to tension the chain easily and quickly. The sprocket cover is loosened and, using the special wheel, the chain is tightened without the need for tools.

Anti-loss chain guard
The anti-loss chain guard has been specially designed to meet the particular needs of tree work.