{"product_id":"cvk-main-jet-130-for-scooters-mopeds","title":"Cvk Main Jet (# 130) for Scooters \u0026 Mopeds","description":"\u003ch2\u003eCvk Main Jet (#130) for 139QMB and GY6 Scooters\u003c\/h2\u003e\u003cp\u003eThe Cvk Main Jet (#130) was built for 139QMB and GY6 scooters and mopeds. It suits most CVK carburetors that have a 5mm main jet slot, so it works across a range of engine setups. As with other \u003ca href=\"\/collections\/scooter-carburetors\"\u003escooter carburetors \u0026amp; jets\u003c\/a\u003e, getting the jetting right can take some experimentation to reach peak performance. For step-by-step jetting guidance, check the blog.\u003c\/p\u003e\u003ch3\u003eConstruction and Compatibility\u003c\/h3\u003e\u003cp\u003eThe jet uses a round Keihin-style body, which gives it a dependable fit on compatible scooters. It has an M5x0.80 thread and measures 8mm overall in length. It works with both 50cc engines and 125cc to 169cc engines, so it covers several different models. If your engine code begins with \"QM\" or \"FM,\" this jet should suit your setup.\u003c\/p\u003e\u003ch3\u003eWhen to Replace Your Main Jet\u003c\/h3\u003e\u003cp\u003eThink about swapping the main jet if you notice performance problems like weak acceleration or a slow throttle response. Routine upkeep or changes to your engine or fuel type can also call for a new jet. Keeping the jet in good shape helps your engine run as it should.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Main Jet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M5x0.80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 139QMB-based 50cc and 80cc engines and 157QMJ-based 125cc, 150cc\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD engines (50cc\/80cc)\u003c\/li\u003e\n\u003cli\u003eOther QMA and QMB engines (50cc\/80cc)\u003c\/li\u003e\n\u003cli\u003e157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A engines (125cc\/150cc\/169cc)\u003c\/li\u003e\n\u003cli\u003eOther QMJ, QMK and QMI engines (125cc\/150cc\/169cc)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Pick this jet for a CVK carburetor with a 5mm main jet slot, an M5x0.80 thread, and an overall length of 8mm.\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":51138617212985,"sku":"TT-26431","price":3.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/cvk-main-jet-130-1.jpg?v=1794376410","url":"https:\/\/www.trendtimes.com\/products\/cvk-main-jet-130-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}