How to clean the clean, repair, and rebuild the carburetor on a Yamaha Warrior 350 ATV. If you four wheeler is running rough and backfiring or will not idle there is a good chance the carb may need to be tuned up. Whether it is a four stroke or two stroke engine, if dirty or old gas is used in the system, jets and the float can get sticky or clogged. The best way to repair a non running ATV is to take the carb apart and clean it, then install one of these carb rebuild kits such as the one from Tusk used in this video. Thanks for watching and good luck with your Warrior repair!