ECHO CS-310-14 14 in. 30.5 cc Gas 2-Stroke Rear Handle ChainsawThe professional-grade ECHO chainsaw CS-310 comes equipped with a 14 in. bar and chain. The rear handle chainsaw is both lightweight and delivers powerful performance. This chainsaw is also packed with features including the side a access chain tensioner for quick chain adjustments and the reduced starting effort feature.For questions about service and repair, please call Echo at 1-800-432-ECHO or reference the Service & Repair documentUse a 50:1 ratio of fuel to oil mix for 2-stroke cycle engines, recommend using only fresh gas with a minimum octane rating of 89 or higher (mid-grade to premium) at all times50:1 ratio equal 1 US Gal. 89 octane plus 2.6 fl. oz. ECHO PowerBlend gold oil or ECHO red armor oilGas powered chainsaw features a 30.5 cc professional-grade 2-stroke gas engineChainsaw comes with a 1-year commercial/5-year consumer warrantyComes with 14 in. bar and chain handles a wide variety of limbing tasksi-30 starter for 30% reduction in starting effortTool-less, easy access air filterSide access chain tensioner for quick chain adjustmentsProfessional features and lightweightAutomatic, clutch-driven oiler for reduced oil consumptionG-Force Engine Air Pre-Cleaner maintains clean air supply to engineFeatures a 2-piece flocked air filter for easy cleaningVibration-reduction system for operator comfortSafety tip (kick guard) sold separately as an accessoryDimensionsBar Length (in.)14 in.Chain Size14 in.Maximum Cut Diameter (in.)25 in