All Balls Racing Carburetor Rebuild Kit Yamaha Big Bear 400 All Balls Racing Carb Rebuild Kits help keep your bike running at peak performance with the components needed to repair your carburetor correctly the first time. Features: Replaces worn or damaged OEM components Nitrile rubber material used on all O-rings and rubber gaskets High-performance interface gasket material for all paper gasket applications Includes O-rings, gaskets, OEM jet sizes, needle, mixture screw, float bowl screws, float valve needle and seat