{"product_id":"carburetor-idle-jet-select-size-weber-idf-dcnf-amp-empi-hpmx","title":"Carburetor Idle Jet (Select Size) — Weber IDF\/DCNF \u0026amp; EMPI HPMX","description":"\u003ch2\u003e\u003cb\u003eCarburetor Idle Jet (Select Size) — Weber IDF\/DCNF \u0026amp; EMPI HPMX (Weber 43-5510-18)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eReplacement \u003cb\u003eidle jet\u003c\/b\u003e for tuning the low-speed circuit on Weber IDF\/DCNF and EMPI HPMX carburetors. Idle jets control fuel delivery at idle and light throttle — a common first step when dialing in a fresh dual-carb setup.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche 356:\u003c\/b\u003e All years (with Weber\/EMPI IDF-style carbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche 912:\u003c\/b\u003e 1965–1969 (with Weber\/EMPI IDF-style carbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche 914:\u003c\/b\u003e 1969–1976 (with Weber\/EMPI IDF-style carbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSelect-size ordering:\u003c\/b\u003e Available in sizes 40–70 to fine-tune your idle circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDirect fit:\u003c\/b\u003e Compatible with Weber IDF\/DCNF and EMPI HPMX carburetor bodies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGenuine Weber jet:\u003c\/b\u003e Precision-drilled for consistent, repeatable fuel metering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Idle jet, sizes 40–70\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFits:\u003c\/b\u003e Weber IDF\/DCNF, EMPI HPMX carburetors\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e Weber\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 43-5510-18\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHow do I know what size I need?\u003c\/b\u003e Idle jet sizing depends on your engine combination and target A\/F ratio — start from your carb manufacturer's baseline chart and adjust from there.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDoes this fit my carb?\u003c\/b\u003e It fits the idle jet holder on Weber IDF\/DCNF and EMPI HPMX carburetors — confirm your carb model before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/carburetors\"\u003eCarburetors\u003c\/a\u003e · \u003ca href=\"\/collections\/fuel-system\"\u003eFuel System\u003c\/a\u003e · \u003ca href=\"\/collections\/porsche-356\"\u003ePorsche 356\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eProp 65 Warning\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"Weber","offers":[{"title":"Default Title","offer_id":45259294081139,"sku":"43-5510-18","price":5.91,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.washburnsmetal.com\/products\/carburetor-idle-jet-select-size-weber-idf-dcnf-amp-empi-hpmx","provider":"Washburn's Metal","version":"1.0","type":"link"}