Alright when I am idling my DRZ-400 she runs beautiful. No noise even when I crank the gas a little. However in first when I start moving if I don't work the throttle just right I hear a kind of loud noise. To me it sounds like the chain is jumping on my sprocket. Either that or similar to a bad shift where you hear the metallic clicking. This problem is more frequent if I have a passenger. Does anyone have an idea what this could be?