{"product_id":"main-jet-145-si-carbs-for-scooters-mopeds","title":"Main Jet #145, SI Carbs for Scooters \u0026 Mopeds","description":"\u003ch2\u003eMain Jet #145 for Scooters and Mopeds\u003c\/h2\u003e\u003cp\u003eThis main jet is built for scooter carburetors and jets and works with a range of scooter and moped models. It controls how much fuel reaches the engine, which has a direct effect on power and efficiency. The #145 size delivers a higher fuel flow, so it suits modified engines that need extra fuel to run properly. It is one of the core components within \u003ca href=\"\/collections\/scooter-carburetors\"\u003escooter carburetors \u0026amp; jets\u003c\/a\u003e. Finding the right jetting can take some trial and error, so checking reliable guides is a good idea.\u003c\/p\u003e\u003ch3\u003eUnderstanding the Main Jet\u003c\/h3\u003e\u003cp\u003eThe main jet is a small, cone-shaped part that sits in the lower portion of the main jet stack. Sizes run from 82 to 165, which lets you fine-tune the setup to match engine changes. Tuned, performance-oriented engines commonly use larger jets, whereas stock setups usually fall in the 85 to 116 range. The jet helps balance the air and fuel mixture, an important factor in how efficiently the engine runs.\u003c\/p\u003e\u003ch3\u003eSigns It Is Time for a New Main Jet\u003c\/h3\u003e\u003cp\u003eThink about swapping the main jet if your scooter begins to feel different, for example sluggish acceleration or rough, uneven idling. If you have changed the engine to boost output, a larger jet may be needed to supply the extra fuel it now demands. Refer to jetting instructions first to confirm the correct fit and adjustment.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 145\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 Scooters and mopeds with SI carburetors, main jet size #145\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSI carburetor scooters and mopeds (main jet #145)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Compare the size number stamped on your current main jet with #145. Available sizes span 82 to 165, and a higher number means more fuel flow.\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":51138591555641,"sku":"TT-26282","price":4.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/main-jet-145-si-carbs-1.jpg?v=1794376193","url":"https:\/\/www.trendtimes.com\/products\/main-jet-145-si-carbs-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}