{"product_id":"idle-screw-for-cvk-carburetors-gy6-50cc-139qmb","title":"Idle Screw for CVK Carburetors \u0026 GY6 50cc (139QMB)","description":"\u003ch2\u003eIdle Screw for CVK Carburetors on GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis idle adjustment screw is made for CVK carburetors fitted to many GY6 50cc scooters. Its design lets you tune idle without a screwdriver, so no tools are needed for adjustments. It helps keep engine performance steady as the weather changes. It is one of the simpler \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e to swap yourself at home, helping your scooter run smoothly.\u003c\/p\u003e\u003ch3\u003eConstruction and Features\u003c\/h3\u003e\u003cp\u003eThe screw is built from precision-machined brass, giving it smooth threads and good resistance to fuel and heat. A high-tension spring is included to hold your setting in place, even under the vibration typical of GY6 engines. Together these features help the screw stay reliable and reduce the chance of your adjustment shifting while you ride.\u003c\/p\u003e\u003ch3\u003eReplacement Guidelines\u003c\/h3\u003e\u003cp\u003eSwapping out the stock idle screw is simple. This part is a direct replacement for the OEM idle screw, so installation is uncomplicated. Check the engine temperature when you install it: with the engine warm, idle should settle at a steady RPM, usually between 1,600 and 1,900 RPM. Setting idle this way can help prevent the engine from stalling at stoplights.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Machined Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Included:\u003c\/strong\u003e Yes (High-Tension Steel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e CVK \/ GY6 Style Carburetors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 139QMB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 125cc\/150cc and 139QMB 50cc 4-stroke engines with CVK carburetors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGY6 125cc \/ 150cc engines (CVK carburetor)\u003c\/li\u003e\n\u003cli\u003eBuddy 125\/150\u003c\/li\u003e\n\u003cli\u003eWolf EX-150\u003c\/li\u003e\n\u003cli\u003eTaoTao Lancer\u003c\/li\u003e\n\u003cli\u003e139QMB \/ QMB139 engines (CVK carburetor)\u003c\/li\u003e\n\u003cli\u003eTaoTao Powermax\u003c\/li\u003e\n\u003cli\u003eWolf Blaze II\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eBrowse further:\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-hardware\"\u003eScooter Bolts, Screws \u0026amp; Hardware\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":51138648047673,"sku":"TT-26592","price":12.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/idle-screw-for-cvk-carburetors-gy6-50cc-139qmb-1.jpg?v=1794376538","url":"https:\/\/www.trendtimes.com\/products\/idle-screw-for-cvk-carburetors-gy6-50cc-139qmb","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}