Hi, I recently replaced the carb on my 23hp b&s intek. Had approx 260hrs on it at the time.I've also replaced the carbs on 4 other intek twins. All of them including my own had choke shafts very worn and the carb body ltself. The symptoms were increased rpm at idle and some times hard starting. Just wondering if anyone else has had these issues and if there could possibly be a recall? Thanks, David.