Can anyone help me out? I have 10000 miles on my bike and the last 1000 have turned the left pipe to a golden color. I would like to stop the it before it turns blue. I have not done anything to the stock pipes except cut the last (exaust end) baffel out. I checked the air mix. screw on both sides, they are about two and a quarter turns out. The plugs look like a perfect burn. I don't know what to do next. HELP
