Components included in the kits are based off of U.S. models and discretion must be used when attempting to install the kit on a non-US model Kits include float bowl, carburetor cap, and accelerator pump screws Extended fuel mixture screw with spring, washer, and O-ring NBR rubber material is used on all O-rings and rubber gaskets; NBR has excellent resistance to the ethanol used in todayÆs fuels Three main jets and three pilot jets that can be used to tune a stock machine or a modified one All gaskets and O-rings including intake gaskets before and after the carburetor Accelerator pump diaphragm spring and boot Kits are intended for closed-course racing only Float needle valve with FMK tip Emulsion tube with slide needle. CARB KIT HARLEY