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Stihl MS661 C-M Chainsaw (Professional)

£1,175.00£1,210.00

The Stihl MS661 C-M chainsaw with a 30″ bar and chain (which is the rollomatic ES light bar) is a professional chainsaw designed for the professional user.

 

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Description

Very powerful high-performance saw with advanced 2-MIX technology and Stihl M-Tronic (M). This electronic engine management system regulates the ignition timing and the fuel supply and automatically registers the external temperature for optimal engine performance, great acceleration and sustained maximum torque. Extremely robust and durable with low vibration levels. Designed for professional use within forestry and big timber harvesting.

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.

Combi lever

As M-Tronic has electronic cold and warm start recognition, only one start position is needed on the combi lever. The exact amount of fuel is supplied on demand. You do not need to know about the status of your chainsaw and can apply full throttle straight away – even with a cold start. Because the saw is warmed up by optimum acceleration in a few seconds.

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.

HD2 filter

The HD2 filter is made from polyethylene filter material with up to 70% finer pores than fleece and polyamide filters to trap even very fine dust. In addition, it is oil and water-repellent and thus very easy to clean. The PET-covered filter cartridge with quick-release lock enables the filter to be assembled and disassembled in next to no time, without using tools.

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.

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%.

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 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.

Variable-displacement oil pump

Allows a precise, demand-based delivery of oil. It’s possible to reduce oil production by up to 50% in the E position. For very long cutting attachments or very dry wood, an additional volume of oil can be added by the user. similar to illustration.

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.

Ematic chain lubrication system

The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with Stihl Oilomatic saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption by up to 50%.

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.

Tool free filler caps

Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.

What else will I need to buy with my chainsaw?

  • 2-Stroke Oil.
    Stihl Moto mixWe advise STIHL MotoMix® which is Stihl’s patented premixed fuel, specially blended for ultimate performance. Like a sports drink for your engine, this 50:1 mixture is a combination of premium non-ethanol, high-octane motor fuel and our highest-quality STIHL HP Ultra oil. Clean and convenient, MotoMix® eliminates the hassle of mixing your own 2-stroke engine fuel while providing superior performance and lubrication. STIHL MotoMix® contains no ethanol, allowing it to maintain stability for up to two years after the seal is broken – so it stays fresh in your equipment during long storage periods. MotoMix® is also made of non-aromatic fuel and fully synthetic, highly biodegradable engine oil.
  • Chain Oil
    Chain lubricant promotes smooth operation by keeping the chain clean and free-running on the guide bar.
  • Optional Extras
    Chainsaw files, replacement bars and chainschainsaw safety equipment (PPE) and log saw horses. All available in store at Masseys.

Stihl MS661 C-M ChainsawStihl MS661 C-M Chainsaw Specification

Brand Stihl
Engine Type Petrol – 2 Stroke
Engine Capacity 91.1cc
Engine Power Output 5.4kW (7.3hp)
Starting System Recoil with ElastoStart
Guide Bar Type N/A
Guide Bar Length N/A
Chain Pitch N/A
Chain Gauge N/A
Chain Type N/A
Chain Brake QuickStop
Chain Tensioner Manual
Chain Oiler Automatic
Vibration Levels 6.9 / 5.6 m/s² (front / rear)
Noise Level 118dB(A)
Weight (excluding bar & chain) 7.4kg
Domestic Warranty 2 Years
Commercial Warranty 1 Year

See all of our Stihl chainsaws, or the larger Stihl MS881.

Warranty

Purchased from Masseys – If your chainsaw was purchased from Masseys and it develops a manufacturing fault during the warranty period, simply return the chainsaw to store and our mechanics will repair the machine free of charge. A warranty repair is when the machine has failed because of improper material or workmanship, under normal use and maintenance.

Purchased online – If you chainsaw was purchased from elsewhere, then we charge an initial £29.99 inspection charge to look at the machine. This will be refunded if the fault is a warranty issue and when the manufacturer has processed and accepted the warranty claim in full. Warranty for non-Masseys customers is 4-12 weeks as we have a duty to ensure our own customers are prioritised first.

 

 

Additional information

Bar Length

28" ES Light Bar, 36" Bar