Just bought an 03 night train from local dealer. Drove about 20 miles home not hard because this is the first time i've owned a bike with this much power. I heard the noise on the way home thought it was normal When I got home the knocking was loader sounds like it's coming from the primary but not real sure. Only 10,500 miles please give some input. I did buy the warranty so not really worryed just like to gain some experiance.:wall