{"product_id":"mikuni-jet-needle-hsr42-standard-14-2506","title":"Mikuni Jet Needle - Hsr42 Standard","description":"\u003cp\u003eMikuni jet needle for HSR42 carburetors, a precision tapered component that meters fuel flow at mid-range and cruise throttle positions. Direct OEM replacement for V-twin carb tuning and jetting adjustments.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFits HSR42 Mikuni carburetors\u003c\/li\u003e\n  \u003cli\u003eOEM Mikuni part number FJ8-8DDY01-97\u003c\/li\u003e\n  \u003cli\u003ePrecision tapered design for mid-range fueling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mikuni\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e FJ8-8DDY01-97\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 4.4 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 1.9 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 0.4 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits HSR42 Mikuni carburetors used on V-twin motorcycles requiring mid-range and cruise throttle fuel metering.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this needle fit my HSR42 carburetor?\u003c\/h3\u003e\n\u003cp\u003eYes — this is the OEM Mikuni jet needle (FJ8-8DDY01-97) for HSR42 carbs.\u003c\/p\u003e\n\u003ch3\u003eWhat does a jet needle do?\u003c\/h3\u003e\n\u003cp\u003eThe tapered needle controls fuel flow at mid-range and cruise throttle positions. Swapping needles is a common tuning step to lean or richen that zone.\u003c\/p\u003e\n\u003ch3\u003eIs this a direct replacement?\u003c\/h3\u003e\n\u003cp\u003eYes — it's an OEM Mikuni part that drops into any HSR42 carburetor without modification.\u003c\/p\u003e","brand":"Mikuni","offers":[{"title":"Default Title","offer_id":53034997252207,"sku":"14-2506","price":19.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_0ae24d1c-892b-4209-bde5-e9b09d8ec144.png?v=1779558833","url":"https:\/\/vtwinbikers.com\/products\/mikuni-jet-needle-hsr42-standard-14-2506","provider":"Vtwinbikers","version":"1.0","type":"link"}