{"product_id":"gy6-50cc-139qmb-cvk-main-jet-kit-72-to-110","title":"GY6 50cc (139QMB) CVK Main Jet Kit - 72 to 110","description":"\u003ch2\u003eCVK Main Jet Kit for 50cc QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis CVK main jet kit is built for 50cc four-stroke QMB139 carburetors, a practical option for scooter owners. It covers jet sizes from #72 to #110, giving you room to tune for different conditions. Among \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, it is a straightforward way to adjust fuel delivery for a smoother ride and better efficiency. You can pick a 10-piece or 50-piece set, depending on how often you plan to do maintenance.\u003c\/p\u003e\u003ch3\u003eJet Size Options\u003c\/h3\u003e\u003cp\u003eThe kit includes #72, #75, #78, #80, #85, #90, #95, #100, #105, and #110. The 10-piece set contains one jet of each size, while the 50-piece set contains five of each. The larger set gives you more spares for testing different setups, and the full range makes it simpler to find the jet that suits your engine.\u003c\/p\u003e\u003ch3\u003eInstallation and Compatibility\u003c\/h3\u003e\u003cp\u003eEach jet has an M4x0.70 thread and an overall length of 7.2mm, so it should seat properly in your carburetor. When tuning, swapping jets can help restore performance and fuel efficiency. If you are seeing performance problems or making major modifications, changing the main jet is a sensible part of the tuning process.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize Range:\u003c\/strong\u003e #72 to #110\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M4x0.70\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 7.2mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sets:\u003c\/strong\u003e 10 Piece or 50 Piece\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 50cc 4-stroke CVK (Keihin round style) carburetors; Honda Dio and Honda Elite 50\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eCompatible with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHonda Dio (QMB139 50cc 4-stroke CVK carburetor)\u003c\/li\u003e\n\u003cli\u003eHonda Elite 50 (QMB139 50cc 4-stroke CVK carburetor)\u003c\/li\u003e\n\u003cli\u003eQMB139 50cc\/49cc (4-stroke, CVK carburetor)\u003c\/li\u003e\n\u003cli\u003eOther makes\/models not listed here that use the QMB139 CVK carburetor\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e This kit suits a QMB139 CVK carburetor with a Keihin round style main jet. Select the size your engine requires, from #72 to #110.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\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":51135745589305,"sku":"TT-16416","price":43.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/gy6-50cc-139qmb-cvk-main-jet-kit-72-to-110-1.webp?v=1794349675","url":"https:\/\/www.trendtimes.com\/products\/gy6-50cc-139qmb-cvk-main-jet-kit-72-to-110","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}