At idle it seems ok, it is when I open the throttle that it really starts clacking or chattering. For the sake of full disclosure I got the bike when it had just under 15,000 miles on it. It's got almost 38,000 so I am long over due for a valve adjustment so maybe I should start there.It just seems that this loud clacking popped up out of no where and it has me concerned. All thoughts and suggestions are welcome and much appreciated.

Last edited by JD13; 05/15/2013 8:27 AM.
2006 865 Neon Blue/Jet Black Speedmaster,790cams, TTP Stage 2 Firestarter, Epco Exhaust with 10.25" Samson Vrod baffles, UNI pods with 40 pilots, 150 mains,Thruxton needles, 3 turns out.