Hello everyone, i am a fairly new rider and in need of some help cause im tired of getting ripped off at repair shops, so if someone can offer me some advice, it'll be greatly appreciated. I have an 03' R6 / 30 k miles, ive done the 26k service and here is the problem i am having now, for one it has lost 1/3 of its power and two it backfires from 3-1 when I down shift. It also doesnt respond when i roll on the throttle for a split second sometimes and then it'll rev. I have a K&N filter which i cleaned out and also sprayed out the carbs...can someone please help. Thank You.