{"product_id":"main-jet-42-for-sha-shb-carbs-for-scooters-mopeds","title":"Main Jet #42 for SHA\/SHB Carbs for Scooters \u0026 Mopeds","description":"\u003ch2\u003eMain Jet #42 for Vespa Small Frame Scooters and Mopeds\u003c\/h2\u003e\u003cp\u003eThis main jet suits Vespa small frame scooters that use 16mm and 19mm carburetors, including PHBG models. It handles fuel delivery and helps the engine run as it should during use. Found within our \u003ca href=\"\/collections\/scooter-carburetors\"\u003ecarburetor and jet range\u003c\/a\u003e, this part supports steady engine operation and efficiency. Several sizes are offered, and this one is a #42, which fits particular tuning requirements.\u003c\/p\u003e\u003ch3\u003eHow the Main Jet Works\u003c\/h3\u003e\u003cp\u003eThe main jet controls the fuel-to-air ratio when the throttle is opened wider, which is when the engine is working hardest. This keeps the engine responsive under load. If you are changing your scooter's carburation, choosing the right main jet is key to getting the performance you are after.\u003c\/p\u003e\u003ch3\u003eFitting Notes\u003c\/h3\u003e\u003cp\u003eSwapping the main jet is a simple job that most scooter owners can handle. The new jet goes straight in place of the existing one in the carburetor. Getting the jetting dialed in may take a bit of trial and adjustment before the scooter runs as smoothly and efficiently as you want.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e #42\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 Small Frame Vespa scooters with 16mm and 19mm SHA\/SHB carbs, and PHBG carbs\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 and 19mm SHA\/SHB carbs)\u003c\/li\u003e\n\u003cli\u003ePHBG carbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSelection tip:\u003c\/strong\u003e Only install this jet in a carburetor that has a main jet slot, and make sure its size matches your existing jet number, which is #42 for this part.\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":51138560983097,"sku":"TT-26100","price":4.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/main-jet-42-for-sha-shb-carbs-1.jpg?v=1794375929","url":"https:\/\/www.trendtimes.com\/products\/main-jet-42-for-sha-shb-carbs-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}