Before doing the grey wire mod my bike ran fine. Did the grey wire mod and the bike was running noticably richer with some hesitation. I reconnected the grey wire and problem disappeard. I would have thought that increasing the timing (which is what the grey wire mod does) would allow the feul to burn better and therefor run leaner? Am I just backwards on my thinking? I don't want to blindly rejet if there could be something I'm missing. Thanks for any input. - Joe Specs: '00 WR400, FMF Ti4, rejetted after pipe.