ECHO CS-3410 Chainsaw The CS-3410 Chainsaw features a 34.4 cc professional-grade, 2-stroke engine for lower emissions, ideal for limbing and cutting firewood Features Has a 34.4 cc professional-grade, two-stroke engine for superior performance and durability Has an integrated choke with fast idle, and a trigger release mechanism allows for fast starts It has a momentary stop switch that automatically returns to the "ON" position The lightest chainsaw in its class with a high power-to-weight ratio lowers fatigue and boosts productivity Has translucent fuel and oil tanks for quick fuel and oil level checks Has a side-access chain tensioner that allows for easy chain adjustments Its i-30™ starter system reduces starting effort by 30% Its automatic clutch-driven oiler operates only when the chain moves, reducing oil consumption It features a purge bulb that provides fresh fuel to the carburetor for easier starts