I have a 96 Ninja ZX-6. Bike runs great when cold and even once its warm as long as you dont have to stop and let the bike come down to idle. Once it is warm and comes back to idle (red light or stop sign) it starts running terrible almost like it is flooding out. This will continue even once I get back up to speed, the only way to get it to stop is to turn off the bike and let it compleatly cool again. But like I said I can ride as long as I want and it runs great until I have to stop. It has a jet kit and a K&N air filter system, however this was done about 4 years ago and has ran fine until about 6 months ago, I did nothing to the carbs or anything that would make me think it may have been something I did. Thanks for any ideas anyone may have.