ok so i have a 93 gsxr600w... ripped it apart the other day and cleaned the carbs. put a k&n in it it ran like %%%% so i put the stock aircleaner back in...still runs like %%%%. the bike has a stock airbox stock pipes and carbs. it runs good until i get on it, then it breaks up around 7000. so i pulled off the petcock on the tank and cleaned that now it runs worse! i cant figure out the problem all the vaccume lines seem to be in place but it gust runs itself out of fuel every time... PLEASE HELP!!!! it will be very appreaciated!