Hello All, I recently bought a new 08 wr450f and have followed the break-in instructions from the manual. This is new to me, as I have always bought used bikes. I now have well over 500 miles on this bike, and I still notice a clutch noise (slight rubbing sound) when the clutch lever is pulled in. The clutch and the gears are fairly smooth, so no problems with functionality. My brother rode it and noticed the same noise. Should I be concerned, or perform any checks, or is this normal for this bike and with new bikes?