{"product_id":"mikuni-large-round-main-jets-4-pk-140-134-7140","title":"Mikuni Large Round Main Jets - 4\/PK #140","description":"\u003cp\u003eGenuine Mikuni large round main jets, size #140, sold in a 4-pack for carbureted V-twin motorcycles. These jets meter fuel flow through the main circuit and are essential for proper jetting when changing altitude, air filters, or exhaust systems.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSize #140 main jet\u003c\/li\u003e\n  \u003cli\u003e4-pack quantity\u003c\/li\u003e\n  \u003cli\u003eGenuine Mikuni OEM component\u003c\/li\u003e\n  \u003cli\u003eLarge round body design\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 FN100604-140\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 4 per pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eJet Size:\u003c\/strong\u003e #140\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 V-twin motorcycles with Mikuni carburetors, including Harley-Davidson and Indian Motorcycle models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat size jet do I need for my bike?\u003c\/h3\u003e\n\u003cp\u003eJetting depends on altitude, air filter, and exhaust modifications. Consult your carburetor tuning guide or work with a shop to verify the correct size.\u003c\/p\u003e\n\u003ch3\u003eHow many jets are in a pack?\u003c\/h3\u003e\n\u003cp\u003eFour jets per pack — enough for multiple carburetors or to keep spares.\u003c\/p\u003e\n\u003ch3\u003eWill this fit my Harley with a Mikuni carburetor?\u003c\/h3\u003e\n\u003cp\u003eYes, if your Harley uses a Mikuni carb. Check your carb brand and model before ordering to confirm compatibility.\u003c\/p\u003e\n\u003ch3\u003eDo I need special tools to install a jet?\u003c\/h3\u003e\n\u003cp\u003eYou'll need a carburetor removal tool and a small screwdriver to access the jet tube inside the bowl. Consider professional tuning if you're unfamiliar with carb work.\u003c\/p\u003e","brand":"Mikuni","offers":[{"title":"Default Title","offer_id":53034991812719,"sku":"134-7140","price":20.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_d3bed48d-c0cf-4104-b378-889977c96431.png?v=1779558739","url":"https:\/\/vtwinbikers.com\/products\/mikuni-large-round-main-jets-4-pk-140-134-7140","provider":"Vtwinbikers","version":"1.0","type":"link"}