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Precision-wound from high-tensile spring steel, this replacement tension spring is engineered to slip right over your idle mixture screw, maintaining constant, reliable pressure against the carburetor body. This constant tension locks your precise idle mixture adjustment screw in place, even under t..

Precision-machined to exact factory specifications, this replacement idle mixture screw is crafted from durable, corrosion-resistant brass. The finely tapered needle tip ensures smooth, predictable fuel metering when adjusting your idle circuit, allowing you to achieve that crisp, synchronized idle ..

The Weber Genuine Idle Mixture Screw is a precision-engineered component designed for Weber 44, and 48 IDF carburetors. This screw features an M5 x 0.8 thread and a specific long taper design that allows for extremely fine-tuned adjustments of the idle air/fuel mixture. Replacing worn, bent, or corr..