OK thats problem #1 you need to pull the carbs, unscrew the 4 jets and clean them out, blow them out just make sure there not obstructed, clean the whole carb really good. Anything that comes apart, clean it, its prolly gummed up. Set air screw on outside of carbs at 1 1/2 out from screwed in all the way, but dont screw them in tight, it could damage your carbs. then when putting slides back in make sure the cutout part of the slide is facing the rear of bike. You also need to put new plugs. Then let us know whats up.