{"product_id":"mikuni-large-round-main-jets-4-pk-135-134-7135","title":"Mikuni Large Round Main Jets - 4\/PK #135","description":"\u003cp\u003eGenuine Mikuni large round main jets in size #135, sold in a 4-pack for V-twin motorcycle carburetor tuning. These jets meter fuel flow at cruise and mid-range throttle, making them essential for dialing in air\/fuel ratio after intake or exhaust modifications.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSize #135 main jet\u003c\/li\u003e\n  \u003cli\u003e4-pack quantity\u003c\/li\u003e\n  \u003cli\u003eGenuine Mikuni OEM part\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 FN100604-135\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 #135\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 that accept large round main jets. Verify your carburetor model and current jet size before ordering.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat size main jet do I need?\u003c\/h3\u003e\n\u003cp\u003eMain jet size depends on your carburetor model, altitude, and air intake modifications. Check your carb manual or consult a tuning guide for your specific bike.\u003c\/p\u003e\n\u003ch3\u003eWhy would I need to change main jets?\u003c\/h3\u003e\n\u003cp\u003eUpgrading to a larger air filter, intake, or exhaust often requires a richer main jet to prevent a lean condition and maintain performance.\u003c\/p\u003e\n\u003ch3\u003eHow many jets come in a pack?\u003c\/h3\u003e\n\u003cp\u003eFour jets per pack — enough for a single carb with spares, or split between two-carb setups.\u003c\/p\u003e\n\u003ch3\u003eWill these fit my Harley or Indian?\u003c\/h3\u003e\n\u003cp\u003eThese fit V-twin bikes running Mikuni carburetors. Stock Harley and Indian models use OEM carbs — verify compatibility before ordering.\u003c\/p\u003e","brand":"Mikuni","offers":[{"title":"Default Title","offer_id":53034991648879,"sku":"134-7135","price":20.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_55e760f9-db8e-47ff-94ad-4cfe79eb2ca1.png?v=1779558739","url":"https:\/\/vtwinbikers.com\/products\/mikuni-large-round-main-jets-4-pk-135-134-7135","provider":"Vtwinbikers","version":"1.0","type":"link"}