{"product_id":"jet-main-37-sha-shb-for-scooters-mopeds","title":"Jet, Main #37 SHA\/SHB for Scooters \u0026 Mopeds","description":"\u003ch2\u003eMain Jet #37 for Vespa Small Frame Scooters and Mopeds\u003c\/h2\u003e\u003cp\u003eThis main jet suits small frame Vespa scooters and mopeds that use 16mm and 19mm carburetors, including PHBG models. It plays a key role in the fuel delivery system and directly affects how the engine runs and how efficiently it uses fuel. You can find it among our \u003ca href=\"\/collections\/scooter-carburetors\"\u003ecarburetor and jet options\u003c\/a\u003e for dialing in the right fuel-air balance. Swapping it out can help your scooter perform better overall.\u003c\/p\u003e\u003ch3\u003eDetails and Functionality\u003c\/h3\u003e\u003cp\u003eThe main jet controls how much fuel reaches the engine through the carburetor. Small frame Vespas generally rely on two jets: a main jet and an idle jet. This model is available in sizes from 37 to 88. Getting the jetting right often takes some experimenting, so checking jetting guides is a good idea for the best outcome.\u003c\/p\u003e\u003ch3\u003eInstallation and Compatibility\u003c\/h3\u003e\u003cp\u003eThis main jet is made to drop into existing carburetor setups. Before fitting it, confirm it matches your particular engine setup. It's a simple component, and many riders change it when tuning or servicing their scooters to improve performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 37\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Main jet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Vespa small frame scooters with 16mm and 19mm carbs, and PHBG carbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eCompatible with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVespa small frame (16mm carb)\u003c\/li\u003e\n\u003cli\u003eVespa small frame (19mm carb)\u003c\/li\u003e\n\u003cli\u003ePHBG carb\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Make sure the jet size matches the main jet position on your carburetor. This #37 is the smallest option in the 37-88 range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/scooter-carburetors\"\u003eScooter Carburetors \u0026amp; Jets\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51138580086841,"sku":"TT-26220","price":3.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/jet-main-37-sha-shb-1.jpg?v=1794376099","url":"https:\/\/www.trendtimes.com\/products\/jet-main-37-sha-shb-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}