The 26-1371 Carburetor Repair Kit contains all the necessary components to restore a carburetor. Kit includes O-rings, gaskets, jets, needle, mixture screw, float bowl screws, float valve needle and seat, all conforming to OEM jet sizes. NBR rubber material is employed in the construction of all O-rings and rubber gaskets for exceptional protection against ethanol in modern fuels. US model-specific applications include a High-Performance Interface Gasket material upgrade for paper float bowl gaskets. Note: Not all components in the kit are suitable for non-US models. For off-road use only.