hi there im new here so i dont really know what im doing..... ive got a gpz 500 engine in a race kart but i dont understand the carberator on it.. it has fancy pipes etc which seam to work the neadles but i dont know what goes where to make this happen?? its a twin cylinder and when was in the bike was running fine.... someone please help!!! email me dunglen83@yahoo.com. i hope this was in the right place!!!!