The CS4020 is a best-in-class mid-sized chain saw engineered with professional features. A key point of difference is the industrial 2-sided magnesium (not aluminum) crank case for less weight and added durability. For faster and easier starts, the spring-assisted starter with optimized engine management reduces force required for starting. The result is a versatile and durable chain saw with a superior power-to-weight ratio that delivers consistent performance, job after job. Unlike common spring-aided starters that make slight improvements in pull-force, easy-start feature combines spring-aided engineering with a new low spark ignition coil.Additional features include a fleece air filter with a two-piece cover that opens simply by turning a knob for true tool-less access, as well as a single choke/run/touch stop switch engineered for added convenience over common two-switch designs.
Air cooled, two-stroke, single cylinder gasoline
φ41 / 30mm
· Powerful, low emission , 39.6cc, 2.2 HP engine
· Centrifugal air cleaning system removes large pieces of dust and debris before they reach the air filter for reduced air filter cleanings and improved engine life
· Combined choke/stop control for easier starting and reduced risk of engine flood
· Low-vibration system lessens operator fatigue by reducing vibration levels and air purge removes air from carburetor and fuel system for easy starting