when you take off on it, its like its hittin the rev limiter just barely hittin the gas. i have cleaned the carb with a supersonic cleaner, put a new cdi box on it, and changed out the sensor beside the stator inside the case. changed the coil, and sparkplug cap. and ideas?

 

Try to run with the air box lid off! if runs better check for an dirtdobber nest in air snorkel!