{"product_id":"main-jet-140-si-carbs-150537","title":"Main Jet #140, SI Carbs","description":"This 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\u003cp\u003e\n\nJetting is something that takes trial and error. See our \u003ca href=\"http:\/\/www.scooterworks.com\/blog\/carburetor-jetting-101\"\u003eblog of jetting instructions\u003c\/a\u003e for more info.\u003c\/p\u003e","brand":"Spaco","offers":[{"title":"Default Title","offer_id":46757024006424,"sku":"150537","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/products\/150537_5278801c-ccf6-4b6c-bacc-080545c76596.jpg?v=1695275199","url":"https:\/\/www.scooterworks.com\/products\/main-jet-140-si-carbs-150537","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}