Bucky's Outdoors

Information

2026 STIHL Chainsaws MS 661 R C-M MAGNUM®

For greater maneuverability when felling large trees, turn to the impressive performance of the STIHL MS 661 R C-M MAGNUM®. Its wrap-around handle provides greater operator comfort when cutting. Just like the MS 661 C-M, this saw includes STIHL M-Tronic™ engine management technology and delivers less vibration and 20% greater fuel efficiency than the previous model. This chainsaw boasts of a long-life filtration system using HD-2 filter elements to provide long run times between maintenance. Other features include an ElastoStart™ handle and a high output adjustable oiler.

Features may include:

• The Adjustable Automatic Oiler allows the user to adjust the lubricant of the guide bar and saw chain for different bar lengths and cutting conditions.

• STIHL has developed a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.

• These spikes prevent pull-in and provide better control, making cutting easier.

• The decompression valve, also referred to as 'deco' or 'deco valve', vents compression in the cylinder for easier starting. The decompression valve temporarily reduces the compression in the combustion chamber during cranking and helps reduce the effort needed to pull the starter rope. It is opened manually and closes automatically as soon as the engine fires.

• The Ematic™ guide bar, when used with STIHL OILOMATIC® saw chain, will provide proper lubrication and less oil consumption than conventional methods. The system works because two ramps, strategically placed in the guide bar rail, help contain the flow of oil and direct all lubrication to the sliding faces of the bar and chain links as well as the rivets and driver holes, which in turn can reduce bar oil consumption up to 50%.