{"product_id":"main-jet-120-si-carbs-150521","title":"Main Jet #120, SI Carbs","description":"MAIN AIR JET FOR SI CARBS (LARGE FRAME CARBS) \u003cp\u003e\n\nThis is the small, cone-shaped jet at the bottom of the main jet stack. They come in various sizes ranging 82-165. Most vintage Vespas will use one in the 85-116 range, though performance-modded engines can drink a lot more gas and use much bigger jets. The larger the number, the more fuel will flow through.\n\n\u003c\/p\u003e\u003cp\u003e\n\nJetting is something that takes trial and error. See our \u003ca href=\"http:\/\/www.scooterworks.com\/blog\/carburetor-jetting-101\"\u003ejetting blog\u003c\/a\u003e for some hot tips. \u003c\/p\u003e","brand":"Mec Eur","offers":[{"title":"Default Title","offer_id":47670403137701,"sku":"150521","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/2627\/1141\/files\/150521_98b28392-14ea-481d-a798-efe59de060d4.jpg?v=1774953136","url":"https:\/\/classicscootersusa.com\/products\/main-jet-120-si-carbs-150521","provider":"Classic Scooters USA","version":"1.0","type":"link"}