when i go wide open throttle fast after i shift into a higher gear...and my rpm's are lower... i think at about 1/2 throttle my quad just hesitates .. and if i don't let off the throttle and do a slower accleration, i think my quad wouldn't almost choke and stall. to about 1/2 throttle, it is smooth..and after 1/2 throttle it is smooth .. what is causing this? .. this problem really only happens is the scenerio i just described.. if slowly acclerate from a low rpm to high rpm, no problem .. from low rpm to high rpm in 1st and 2nd gear .. no problem .. only if i punch the throttle at low rpm in higher gears does it happen..