I am planning on replacing my engine on my tiller that was a Tecumseh H60 but I have to buy another brand since they went out of business.all I can find with the same shaft is a Briggs & Stratton 1150 Series Horizontal OHV Engine 250cc, 3/4in. x 2 5/16in. Shaft, Model# 15T212-0223-F8 but the...