Everything is the same on an 8-10, including carburetor, jetting, head, crank, exhaust valve, intake valve, cam shaft. The difference is that the piston and connecting rod are different. I was also told from a mechanic that works on these engines that the Tecumseh 11 hp OHV engine uses a new cheaper type of carburetor. Find many great new & used options and get the best deals for Vintage Tecumseh Power Products 2 Sroke AH-58 Engine Kart Racing Chainsaw at the best online prices at eBay! Free shipping for many products! 3/4" dia. x 2.4" keyed crankshaft - d/t 3/8-24 - Replacement engine is Tecumseh part # 907366A - uses starter part # 33290 Remember Snowthrower engines are not equipped with element air cleaners. They are designed for use in snowy environments.NOTE:Straight Fuel fittingNOT 90 Craftsman "Eager-1" edger/trimmer with 3.5hp Tecumseh engine 1985 Craftsman 9" 2.5 H.P. EDGER Craftsman Edger model 536.797570 536.797542 Go kart with a Tecumseh HS50-67167E engine 1989 Troy Bilt Tuffy Tiller 1974 Sears 3HP Tecumseh engine Tecumseh 632615 632208 632589 H30 & H35 Tecumseh Engine High Quality and ...