{"product_id":"jet-main-45-sha-shb-for-scooters-mopeds","title":"Jet, Main #45 SHA\/SHB for Scooters \u0026 Mopeds","description":"\u003ch2\u003eMain Jet #45 SHA\/SHB for Vespa Small Frame Scooters and Mopeds\u003c\/h2\u003e\u003cp\u003eThis main jet suits Vespa small frame models that run 16mm and 19mm carburetors. It is meant for riders who are servicing the carburetor on their scooter. Fuel delivery depends heavily on this part, so it is one of the essential \u003ca href=\"\/collections\/scooter-carburetors\"\u003escooter carburetors \u0026amp; jets\u003c\/a\u003e to look at when setting up your ride.\u003c\/p\u003e\u003ch3\u003eWhat the Main Jet Does\u003c\/h3\u003e\u003cp\u003eThe main jet controls how much fuel reaches the engine while it runs. On small frame Vespas, it works alongside an idle jet to keep the engine running efficiently. Main jets are available from 37 to 88, so you can dial in the setting that matches your scooter.\u003c\/p\u003e\u003ch3\u003eFitting and Tuning\u003c\/h3\u003e\u003cp\u003eSwapping the main jet means taking the carburetor off, which is simple enough for anyone comfortable with scooter maintenance. Getting the jetting right often takes a few tries. If you need help making adjustments, check the jetting instructions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e #45\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 carburetors, and PHBG carburetors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eCompatible with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVespa small frame (16mm carburetor)\u003c\/li\u003e\n\u003cli\u003eVespa small frame (19mm carburetor)\u003c\/li\u003e\n\u003cli\u003ePHBG carburetor\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eChoosing a size:\u003c\/strong\u003e Compare the number stamped on your existing main jet with the size your engine setup requires. Main jets range from 37 to 88.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrowse further:\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":51138606071865,"sku":"TT-26383","price":3.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/jet-main-45-sha-shb-1.png?v=1794376339","url":"https:\/\/www.trendtimes.com\/products\/jet-main-45-sha-shb-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}