EPA Certified quiet dependable performance with horizontal shafts.6.5Hp-Horizontal Keyway Shaft.Pressure Washers, Air Compressors,Trenchers,Concrete Mixers, Concrete Saws, Mortar Mixers, Go-Karts.Fuel Tank Capacity: 1 gallon; Engine Oil CapacityApplications: Pressure Washers, Air Compressors, Trenchers, Concrete Mixers, Concrete Saws, Mortar Mixers, Go-Karts. Specs; Horse Power: 6.5 hp; Displacement: 196cc; Bore x Stroke mm: 68 x 54; Compression Ratio: 8.5:1; Engine Speed: 3600 rpm; Starting System: Recoil; Fuel Tank Capacity: 1 Gallon; Engine Oil Capacity: 20 oz; Dimensions LxWxH In. 12.3-inch x 14.8-inch x 13.2-inch; Dry Weight: 35 lbs.; Shaft Diameter: .75-inch