I have been playing around with mini bikes, etc for quite a while now, but my rebuild of my Trail Horse is my first experience with a new centrifugal clutch. I fired it up today and all seemed well, except the almost solid sounding bang coming from the area of the clutch. I thought the free turning chain was hitting something, (rear wheel is suspended). I shut it down and again checked the spin of the rear wheel. Nothing. No catching anywhere, no banging, nothing. So, is it common for a new clutch to, "grab" and skip/stall until it gets broken in?