I recently bought an old 3 hp air cooled ob. There is no name on it anywhere that I can find. It ran rough and would quit often, so I took the carb off and cleaned it up. Stamped on the carb is the name Lauson. After cleaning cleaning it I noticed that the float had fuel in it and that there was a small hole in it. Does anyone know where I could find one for this type of carb? I believe that Lauson made and sold lawn mowers a long time ago...did they sell to another company?