The quad will start first try and can idel for hours fine. On flat land it will move ( feels theres missing power ) but under any load ( slight hills ) it spudders and wont move just buck like its trying. sometimes it will stahl but if you let it sit for a few min. it will start right up. I have had problems with it doing the same things before and when i would change the CDI it would be fine for awhile . i Have replaced the CDI many times. I'm wondering now if i have been over looking the real problem. I tryed replacing the CDI with a proformance one and it wont even start. I put a new cheap replacment in it and it started up. Not sure if that helps. Any ideas would be great thanks

 

Just alittle note : i had the quad running for over an hour at an idel. I got on it and opened it up it ran fine for a few min. then the power loss started untill it just died.

 

try adjusting the float on carb (maybe running out of fuel)

 

found the problem jelly-crap in fuel lines and carb. cleaned and cleared running fine. so many CDI problems i lost track of the basic stuff to check