Description:

The MS 661 C-M is a professional chainsaw built for felling large trees in high volumes. It offers an excellent power-to-weight ratio, STIHL M-Tronic™ intelligent engine management, 20% better fuel efficiency than the previous model, and reduced vibration for comfort. It also features an HD-2 long-life air filter, ElastoStart™ handle for easier starting, and a high-output adjustable oiler for optimal lubrication.

Features:

• STIHL M-Tronic™ – Automatically adjusts for air filter condition, altitude, and fuel quality for optimal power.
• Ematic™ Lubrication System – Delivers precise chain lubrication, reducing oil use by up to 50%.
• STIHL ElastoStart™ – Starter handle with shock absorber for easier pull starts.
• IntelliCarb™ Compensating Carburetor – Maintains correct engine speed even with a dirty air filter.
• STIHL Quickstop® – Chain brake stops the chain instantly in certain kickback situations.
• HD2 Air Filter – Washable, long-lasting filter for better engine protection and reduced maintenance.
• Bumper Spikes – Provide better control and prevent pull-in while cutting.
• Adjustable Automatic Oiler – Adjusts oil flow for different bar lengths and conditions.
• Decompression Valve – Reduces cylinder pressure for easier starting.
• Lightweight Sprocket Cover with Captive Bar Nuts – Easier chain maintenance without losing nuts.
• Side-Access Chain Tensioner – Convenient chain adjustments with a bar wrench.
• Master Control Lever™ – One lever controls choke, throttle lock, and on/off functions.
• Anti-Vibration System – Reduces operator fatigue during long use.
• Toolless Fuel and Oil Caps – Easy opening and closing without tools.
• Throttle Trigger Lockout – Safety feature preventing accidental activation.
• Reduced-Emission Engine Technology – Meets or exceeds EPA/CARB low-emission standards.

Specifications:

• Power Source: Gas
• Powerhead Weight: 16.5 lbs
• Recommended Guide Bar Length: 16 in
• Chain Type: 3/8" RS3
• Chain Oil Capacity: 13.5 oz
• Engine Power: 7.2 bhp
• Fuel Capacity: 28.7 oz
• Displacement: 91.1 cc
• Intended Use: Professional