Tecumseh Ohv Ohm90-222304c 9 HP Electric Start Horizontal Shaft Engine UsedTecumseh OHM90-222304C, 9 HP OHV Horizontal Shaft Engine. Runs on fuel sprayed into carb, may need carb work. Crankshaft is 2 3/8” long X 1” diameter. Unit ships without oil. The item “TECUMSEH OHV OHM90-222304C 9 HP ELECTRIC START HORIZONTAL SHAFT ENGINE USED” is.