find yourself a buddy and a 5 mile long forest service road with no traffic on it. Go RACING! Get that Gasser up on the pipe and keep it there for a few minutes at a time. You WILL be able to tell when your getting it cleaned out .Rev the snot(this is not just a figure of speech here) out of it and hold on,as it burns out the crud inside the pipe you will feel how hard your bike can pull and how responsive it can be. repeat as often as nessacary throughout your riding season!