Hey guys. I bought this motorbike a couple of months ago. It has a Briggs and Stratton 6.5HP engine that I believe was intended for a go-cart. However, recently the clutch has been acting weird. It pulls inconsistently (sort of bucks) at certain speeds and makes a grinding noise. When I push the bike with the engine off, the bell lightly scrapes something once per rotation of the bell. I want to pull it off and see what is going on, but I've never seen one mounted backward before. What is the proper way to remove it?