I was riding around last week and noticed that my bike would studder when I was in low Revs....1st through 3rd mostly. It has no effect when I am twisting the throttle somewhat hard or even consistently but when I am at slow speeds it chatters when I apply just a small amount of throttle. What is the Problem? The play in my throttle is kinda big and think this may help it out some..How do I tighten it up? It gets kinda scary when going into turns at slow speeds. My bike is jetted, Bolt-on Yosh pipe, 520 conversion, and that is it. Any suggestions of what might solve the prob?