OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Briggs & Stratton Engines Output Shaft Briggs & Stratton replacement engine

Hi everyone, thanks to all people on here for your help. I'm sure my question has been covered 1000 times but I can't find it, sorry.
Current shaft size on my Scott Bonnar 45 is 5/8, I can get a cheap 3hp Briggs and Stratton with with a 3/4 shaft, can I. Make it fit? Is it worth the stuffing around? What's required? Or should I just get another exact replacement?
Thanks in advance