i have a B and S 80202-0880-01-8004903 3hp engine- can anyone tell me what size the drive/crank shaft is ? 3/4 or 5/8th as i need to buy a new clutch housing?
I attach the parts manual for your engine. Unfortunately, Briggs parts list do not reveal PTO diameters.
However, a simple and cheap slide rule vernier should do the job. Otherwise, mosey on down to a bearing or nuts & bolt place for a measurement of the housing.
Hope this helps. ------------------------------- Jack