Kits include all of the necessary components to repair a carburetor; Atv models with two carburetors include components to repair two carburetorsKit includes all O-rings, gaskets, jets, needle, mixture screw, float bowl screws, float valve needle and seat; Oem sizes are included in the kitNbr rubber material is used on all O-rings and rubber gaskets nbr has excellent resistance to the ethanol used in today’s fuelsComponents included in the kits are based off of us models and discretion must be used when attempting to install the kit on a non us modelApplications that use paper float bowl gaskets are upgraded to high performance interface gasket material; Off road use onlyCarburetor Repair Kit 26-1324 Yamaha WR400F 1998-1999 Kits include all of the necessary components to repair a carburetor. ATV models with two carburetors include components to repair two carburetors. Kit includes all O-rings, gaskets, jets, needle, mixture screw, float bowl screws, float valve needle and seat. OEM siz