STIHL MS 661 C-M Petrol Chainsaw
Free next day delivery over £90*
Free buy online & collect in store
Free next day delivery over £90*
Free buy online & collect in store
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. Supplied with rollomatic E guide bar, not rollomatic ES light as pictured.
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.
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.
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.
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.
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.
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%.
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.
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.
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.
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.
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 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.
Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.
|Fuel Tank Capacity||0.85 L|
|Sound Level||118 (dB(A))|
|Domestic Warranty (T&C's Apply)||2 Years|
|Commercial Warranty (T&C's Apply)||1 Year|
|Engine Displacement||91.10 cc|
|Power Output||5.4 kW|
|Weight (Excl. Bar & Chain)||7.4 kg|
|Vibration (left/right)||5.4/7.3 m/s²|
|Recommended Bar Lengths||28", 36"|
|Chain Gauge||1.6 mm|
|Chain Tensioner||Side Chain Tensioning|
|Compatible Chain File||7/32" 5.5mm|
Buxton’s offer free next working day delivery on orders over £90 (Incl. VAT) for Mainland UK (excluding the Highlands and Islands).
We also offer a 48hr Royal Mail service for smaller items.
Orders placed before 3 pm are dispatched the same working day. Orders received after this time or during weekends & Bank Holidays will be processed the next working day. Please note all orders placed on a Friday will arrive the following Monday unless you select Saturday delivery for an additional charge.
For more information on our delivery services click here.
Due to the size and nature of some items, we're unable to despatch them via our usual delivery services.
White Glove Delivery is available on many lawnmowers & other highlighted products and is offered free to customers within a 30-mile radius of our showroom. Learn more.
If you would like to order a larger lawnmower, or any other item marked as White Glove Only, please contact us for a quote.
At Buxton’s, we offer a 30-day return policy. Within 30 days of receiving your goods, you can return the products for a full refund. Products will only be refundable if they are returned in the original packaging, unused and in a resellable condition. T&C applies. Products that are made to order are non-returnable. For example, rope cut to length. Products that we don't stock and are ordered in from the supplier will have a 25% restocking fee if returned.
For more information on our returns policy click here.