Just bought a 93 zx7r and cannot figure it out . Starts and runs good for 10 seconds. Then starts choking and bucking me around below 7k Rpms. Then after 7k and WOT the bike takes off. Then you let off gas and it drops and wants to shut off. I just cleaned the hell out of the carbs and set screws to 2 1/2 turns . Have two vacuum lines that having nothing connected , maybe issue? I know nothing. Can’t figure it out.