ZSDTRP speed refueling screw idle adjuster screw repair kit for carburetor metering rods with gasket tuning tool.This kit includes components designed to assist in the adjustment and maintenance of carburetor systems.It features an idle adjuster screw, refueling screw, metering rods, gaskets, and a tuning tool for calibration.The parts are intended for use in carburetor repair and performance tuning applications.Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.