Ok friends , I'm having some issues with my atv I had bought for my little girl as a birthday present . When we got the atv it ran ok at times and other times it wouldn't start, cut off randomly, idel really fast ... so I just went and bought a brand new carb for it off eBay, put the carb on , it fired up and ran like a dream, couldn't have ask for a better bike , then one day while riding, throttle was engaged at least 3/4 to Full, and all of a sudden it started spitting and spuddering and ended up dieing ... I have worked on this thing till im blue in the face... all my daughter wants to do is ride her bday present and I can't get it going.. Ok as of now I've bought probably 8 of the ngk spark plugs cause when it dies it fouls the plugs alnmost every time . I can start it up first kick start and it fires right up, and will stay running for hours if ya let it. Then you can mash throttle some... about 1/4 to mabie 1/2 then let off of it and it putters and dies then I have to wait about 20 min b4 I can get it to restart back up.. I've watch COUNTLESS YouTube tutorials on how to adjust the gas /poliet screw and I'm doing exactly what it says ,getting the atv to it's most highest ideling position and leave alone right....? Well as soon as I do that it stays running but I can put in gear and hit throttle and it starts spitting and sputtering and eventually dies ounce again..... however when Its ideling and I turn the black knob on bottom of carb to increase idel to max it will barley spit and sputter hardly any .... I've even tried tapping on the carb to see if something is mabie stuck ... I don't know... someone PLESE give me some suggestions .... I'm about to drive myself crazy over this thing and all I really trying to do is get my daughter something she can ride....