Lifan Power LF170F-BHQ 7 HP Horizontal Shaft Recoil Start Engine with 6:1 Gear Reduction 7hp 212cc 4-Stroke OHV Industrial Grade Gas Engine Recoil start with 6:1 Gear Reduction 3/4 inch keyway shaft and Universal mounting bolt patterns Low oil shutdown engine protection and .95 gallon fuel tank Automotive grade rods, pistons, ring and crankshaft along with 3 year residential - 1 year commercial warranty