I'm pretty new to this quad so bear with me..I'm not that knowledgeable about it! I need the name for a screw on the carb. It's on the backside near the foot brake. I was told it was an air screw. It's sucking air in right now because a screw is missing and I hope it will fix my problem. It won't take any throttle at all right now. I'd like to know the name of the screw and where I could purchase one. Thanks!