Description:

When professionals need to fell large trees, in large quantities, they reach for the saw they know has the power to get the job done — the STIHL® MS 661 C-M. Featuring an impressive power-to-weight ratio and STIHL® M-Tronic™ engine management technology, the STIHL® MS 661 C-M chainsaw also delivers less vibration and 20% greater fuel efficiency than the previous model. Other features include a long-life filter system using STIHL® HD-2 filter elements to provide longer run times between maintenance, an STIHL® ElastoStart™ handle, and a high-output adjustable oiler.

Features:

• STIHL® M-Tronic™ – A new generation of intelligent engine management that eliminates low and high-speed carburetor adjustment screws, compensates for dirty air filters, elevation changes, and fuel quality, ensuring optimum engine power at all times.
• STIHL® Ematic™ Lubrication System – When used with a STIHL® OILOMATIC® saw chain, the Ematic™ guide bar provides proper lubrication and reduces oil consumption by up to 50% compared to conventional methods.
• STIHL® ElastoStart™ – A starter handle with a built-in shock absorber that reduces the effort of pulling the starter cord by smoothing out the sudden peak forces (compression) during cranking.
• STIHL® IntelliCarb™ Compensating Carburetor – Automatically adjusts the air/fuel ratio when the air filter becomes restricted, maintaining the correct RPM and consistent performance.
• STIHL® Quickstop® – A chain braking system designed to stop the chain in certain kickback situations. It can be activated by the operator’s hand or inertia, stopping the chain within fractions of a second.
• STIHL® HD2 Air Filter – Washable, with a large surface area that provides long filter life, longer run times between maintenance, and superior engine protection even in dusty conditions.
• Bumper Spikes – Improve control, prevent pull-in, and make cutting easier.
• Adjustable Automatic Oiler – Allows adjustment of lubrication to match different guide bar lengths and cutting conditions.
• Decompression Valve – Reduces compression in the cylinder during starting, making it easier to pull the starter rope.
• Lightweight Sprocket Cover with Captive Bar Nuts – Easy maintenance with secure captive bar nuts that stay in place.
• Side-Access Chain Tensioner – Convenient chain adjustment with a bar wrench, instead of adjusting at the typical guide bar screw location.
• STIHL® Master Control Lever™ – A single, easy-to-use lever that operates the choke, starting throttle lock, and on/off switch.
• STIHL® Anti-Vibration System – Reduces vibration to minimize operator fatigue and improve comfort.
• Toolless Fuel and Oil Caps with Retainers – Simple lift-and-twist caps for easy tightening and removal without tools.
• Throttle Trigger Lockout – Safety feature that must be depressed before the trigger can be activated.
• STIHL® Reduced-Emission Engine Technology — Caring for Nature – Identifies STIHL® products that are environmentally conscious, producing zero or low exhaust emissions that exceed EPA and/or CARB standards.

Specification:

• Power Source: Gas
• Powerhead Weight: 16.5 lbs
• Guide Bar Length (Recommended): 36 in
• OILOMATIC® Chain: 3/8" RS3
• Chain Oil Capacity: 13.5 oz
• Engine Power: 7.2 bhp
• Fuel Capacity: 28.7 oz
• Displacement: 91.1 cc