If my pipes in about 1000 miles ,moderate running ,changed to a golden brown color (no bluing), about 6-8 inches from flange, is my bike running lean or rich? I have a 2001 Fatboy that is on its third set of pipes now.I started with D&D slip-ons terrible fitment,went to Cycle Shack drags,not bad but cheap pipes,and now ultimately bought Vance and Hines Longshots that are not on yet.If its any help I have a Screaming Eagle air cleaner,stock carb jetted with a 180 main, 45 slow jet,idle mixture screw about 3 1/2 turns out.Any help to richen /lean would help.Thanks.Hippo you out there?