Description
Idle Jet – 0.40 (Weber IDF / EMPI HPMX)
Maintain smooth idle and crisp off-idle response with this 0.40 idle jet, designed for Weber IDF and EMPI HPMX carburetors. This jet meters fuel through the idle circuit, critical for engine behavior at low RPM and during light throttle cruising.
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Size: 0.40 (40)
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Fits: Weber IDF & EMPI HPMX carburetors
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Material: Precision-drilled brass
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Function: Controls fuel delivery at idle and low-speed throttle transitions
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Sold: Per jet (each)
