{"product_id":"performance-ac-cdi-no-rev-limiter-gy6-50cc-139qmb-standard","title":"Performance AC CDI (No Rev Limiter) - GY6 50cc (139QMB) (Standard)","description":"\u003ch2\u003eHigh-Performance CDI for GY6 Scooters, 50cc to 170cc\u003c\/h2\u003e\u003cp\u003eThis performance AC CDI is built for GY6-style scooters with engines between 50cc and 170cc and is meant to take the place of the factory unit. It uses an aggressive ignition curve and removes the rev limiter, letting the engine reach higher RPM. It is a useful option among \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e for riders who want to tune their machine.\u003c\/p\u003e\u003ch3\u003eRev Limiter Removal and Ignition Timing\u003c\/h3\u003e\u003cp\u003eThe ignition timing map on this CDI has been retuned to improve acceleration and throttle response. Because the factory RPM cap is gone, the engine can rev further, which can noticeably change how it performs. Output runs at 400–600 volts, giving a strong spark for more complete combustion.\u003c\/p\u003e\u003ch3\u003eBillet Aluminum Housing Design\u003c\/h3\u003e\u003cp\u003eAn orange billet aluminum case encloses the unit and also helps draw heat away from the internal transformer. The housing guards the delicate electronics against vibration and heat, which supports dependable operation under hard use.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e 6-Pin (Square 2-pin + 4-pin block)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e AC (Alternating Current)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Output:\u003c\/strong\u003e 400–600V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e ISO 9001 Certified\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis CDI works with a range of GY6 engines, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e50cc \/ 80cc: 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2\u003c\/li\u003e\n\u003cli\u003e125cc \/ 150cc \/ 170cc: 157QMJ, 161QMK, 152QMI, 1P61QMK, 1P57QMJ, 1P52FMI\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf your engine code includes \"QM\" or \"FM\" and uses an AC CDI setup, this module will probably fit. It is not suitable for genuine 50cc scooters such as the Buddy, or for models running DC ignition, such as the Wolf Jet II.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrowse 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-cdi-ignition\"\u003eScooter CDI \u0026amp; Ignition\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":51138878341177,"sku":"TT-27210","price":62.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/performance-ac-cdi-no-rev-limiter-gy6-50cc-139qmb-standard-1.jpg?v=1794378453","url":"https:\/\/www.trendtimes.com\/products\/performance-ac-cdi-no-rev-limiter-gy6-50cc-139qmb-standard","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}