An Idle Screw Spring is a small component of a carburetor that controls the idle speed of an engine. It is a torsion spring that works by exerting a torque or twisting force when it is twisted along its axis. By adjusting the idle screw spring, the amount of air that mixes with the fuel can be increased or decreased, which changes how fast or slow an engine idles and how smoothly it runs. It is typically made up of materials, such as steel and brass.Attributes:• Provides a smooth and consistent idle, reducing engine vibration and noise• Manufactured precisely to exact dimensions and tolerances to give improved durabilityApplications:An Idle Screw Spring is used to store and release energy in the Carburetor which helps to vary the fuel ratio.