STIHL MS 661 C-M 22" Bar Petrol Chainsaw
- Bar Length: 22"/55cm or 25"/63 cm or 28"/70 cm or 30"/76cm
- Engine Power: 91.1 cc / 5.4 kW
- Weight: 7.4 kg
FREE Home Delivery on all online orders
FREE Home Delivery on all online orders
Store Pick Up - FREE. Includes assembly of tools prior to collection. The store will contact you when your order is ready.
Returns & Exchanges
We will happily accept returns or exchanges up to 14 days after the date of purchase, provided the products are in their original condition and packaging. Click here to view our full Returns Policy
All STIHL products purchased online will be issued a STIHL warranty.
1. Tools used for home/farming applications receive a 2 year warranty. Double the warranty for petrol products to 4 years by adding HP Ultra Oil (minimum 1L) to your purchase.
2. Tools used in a professional application receive a 6 month warranty
Click here to find out more about the STIHL Warranty
The MS 661 C-M Petrol Chainsaw is designed for professional use within forestry and timber harvesting. It features both the advanced 2-MIX engine and the STIHL M-Tronic (M) technology. The MS 661 C-M offers great acceleration and sustained maximum torque, with low vibration levels. This is a powerful high-performance Chainsaw that is extremely robust and durable.
Your Chainsaw will require engine oil and bar lube. We recommend STIHL HP ULTRA TWO STROKE ENGINE OIL and STIHL SYNTH PLUS CHAIN LUBRICATION for your machine.
Engine Power (kW)
Power to Weight Ratio (kg/kW)
STIHL Engine Type
Standard Guide Bar
Standard Chain Type
Max Wood Diameter
28 inches or 71 cm
2-MIX EngineModern, powerful and economical engine. Provides fuel savings and reduced emissions.
Anti-vibration SystemVibrations from power tools can lead to negative effects on blood vessels. STIHL has developed a system for minimizing the levels. This also helps reduce operator fatigue and provides a more comfortable working experience.
Ematic Chain Lubrication SystemA reservoir holds bar oil until it is picked up by the passing chain. This achieves maximum lubrication resulting in longer wear and less oil consumption.
Single Master Control LeverAll the important functions of start, choke, throttle and stop are operated via a single lever.
Easy Open Fuel and Oil TanksSpecial caps on the fuel and oil tanks allow for easy opening and re-fueling.
HD2 FilterThis air filter keeps even the finest dust away from the engine, which increases the service life of the engine. The HD2 filter element is made from a robust long life material that can be washed repeatedly. For best results we recommend the use of STIHL Varioclean and warm water.
STIHL M-Tronic™ SystemThe STIHL M-Tronic™ system electronically manages the air/fuel and ignition requirements of the saw. Ensuring optimal performance in all operating conditions. This technology also provides a simplified starting procedure.
STIHL ElastoStartA spring or rubber element in the starter handle is used to balance out the peck compression resistance when pulling the starter cord. This reduces the perceived starting effort by up to 30%.
Side Chain TensionerThere is a tensioning screw on the side of the Chainsaw through the sprocket cover. This is easy to use and removes the need for contact with the sharp saw chain.
Controlled-delivery Oil PumpDifferent 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.
Decompression ValveThe decompression valve, vents compression in the cylinder to reduce the cranking effort.
Q: What type of property is it suitable for?
A: This saw is designed for heavy duty farming applications and professional tree care or forestry.
Q: What size logs can I cut with the standard bar?
A: Large diameter logs up to 28"
Q: What should I wear when using this Chainsaw?
A: We recommend that you wear snug-fitting clothes with Chainsaw protective legwear, eye protection, gloves, ear protection, sturdy boots or shoes, and tie back long hair.
Q: How long can I use this Chainsaw for?
A: This saw is designed for all day, every day use.
Q: What is the maximum size bar I should use on this Chainsaw?
A: This saw will run efficiently with an up to 30" 75 cm bar