{"product_id":"cvk-main-jet-155-for-scooters-mopeds","title":"Cvk Main Jet (# 155) for Scooters \u0026 Mopeds","description":"\u003ch2\u003eCvk Main Jet #155 for 139QMB and GY6 Scooters\u003c\/h2\u003e\u003cp\u003eThis Cvk Main Jet #155 is made for 139QMB and GY6 engines and works with most CVK carburetors that have a 5mm main jet slot. It lets you fine-tune the fuel mixture, which helps with efficiency and performance on your scooter. You can browse our \u003ca href=\"\/collections\/scooter-carburetors\"\u003erange of carburetor parts and jets\u003c\/a\u003e to find related components. Expect to test a few settings before you settle on the jetting that suits your riding.\u003c\/p\u003e\u003ch3\u003eCompatibility Overview\u003c\/h3\u003e\u003cp\u003eThis main jet works with a broad range of engines, from 50cc up to 150cc. It is most often used in scooters and mopeds running 139QMB and 157QMJ engines. To confirm fit, make sure your engine code starts with \"QM\" or \"FM\".\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Keihin round-style 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\/80cc GY6 engines and 157QMJ-based 125cc\/150cc\/169cc engines with 5mm main jet slot CVK\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 models (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 models (125cc\/150cc\/169cc)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Check that the 5mm main jet slot on your CVK carburetor matches, and confirm the engine code on your engine. Any CVK carburetor with that slot will take this main jet.\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":51138610724921,"sku":"TT-26411","price":3.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/cvk-main-jet-155-1.jpg?v=1794376379","url":"https:\/\/www.trendtimes.com\/products\/cvk-main-jet-155-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}