Out with my 06 hitting it hard today and developed a loud nocking sound. At first I tought it was my clutch, or plates, but now i'm not so sure. Could it be my valves? Any input would be appreciated before i bring it to EBR (preffered mxperts). Also noticed a funny smelling oil that dripped on my stand. Checked for leaks and had none. I believe it came out of the black hose on the left side of my case.