Description:The CS-4920 features a powerful 50.2 cc, 2-stroke engine but is the lightest saw in its class. With a purge bulb for easier starts and a momentary switch that returns to the "ON" position when the saw is shut off, the CS-4920 is simple to operate.TOP FEATURES 50.2 cc professional-grade, 2-stroke engine Momentary stop switch Heavy-duty air filter with tool-less access provides superior air filtration FEATURES: LIGHTWEIGHT POWER FOR LIMBING OR BUCKING 50.2 cc professional-grade, 2-stroke engine For outstanding performance and durability Momentary stop switch Automatically returns to "ON" position Heavy-duty, easy-access air filter Provides superior filtration with reduced maintenance time Purge bulb Delivers fresh fuel to carburetor for easier starts Side-access chain tensioner For easy chain adjustments Automatic, adjustable clutch-driven oiler Operates only when the chain is moving to reduce oil consumption Stratifed, 2-stroke engine Results in lower emissions Available in 16, 18, and 20 in. bar lengths Perfect for large jobs and cutting firewood SPECIFICATIONS: Engine Displacement (cc): 50.2 Ignition System: Digital Oiling System: Automatic/adjustable Vibration Reduction System: Spring Available Bar Lengths (in): 16, 18, 20 Oil Capacity (fl. oz.): 11.2 Dry Weight (lb): 11.1 Handle: Plastic Fuel Capacity (fl. oz.): 16.2 Warranty: 5 years consumer / 1 year commercial