2001 YZ426 with BK mod, E-series exhaust. Seems to run great at all throttle settings, but I can't figure out some issues at idle. Blip the throttle and the idle takes 2 seconds to come all the way back down. This is especially annoying coming into a corner as the bike tries to keep going fter you let off the throttle. With the TPS disconnected the hanging idle is a lot less of a problem, but still there. I went through all the TPS tests and all was fine except the resistance at idle. It was reading ~1.3 k ohms at idle when it should be around 700. I adjusted it, but could only get down to ~1.1 k ohms before running out of adjustment. Another symptom is that when the bike is cold it will barely idle, which leads me to turn the idle up. As the bike warms up after a ways into the ride I have to keep adjusting the idle back down as it keeps climbing. Could the TPS be going bad? Maybe an air leak causing an extra lean condition with no throttle opening? I feel like I am chasing my tail on this one... Thanks Guys!