I got my carbs professionally cleaned and were supposedly checked for leaks (however the were not on the bike). I also bought all new inlet pipes that go from the air box to the carbs. I put all the carbs back on my bike and it still does the same thing , which is that it will idle when started but as soon as just the slightest amount of throttle is applied, the motor jumps and hangs at 4000 RPM, even when the throttle is returned to where it was idling! Anyone, please help!!