I've adjusted the egvc valve at the exhaust by the book several times. The problem with the bike is it starts to sputter around 3200 rpm and makes it very hard to build up speed or rpms. The previous owner had no servo cables even on the bike and by-passed the kickstand sensor. The only thing I did different was hooked the kickstand sensor back up and put on the servo cables. The bike ran great before except the dying from time to time and I think that was related to the kickstand sensor. Any help would be apprieciated