{"product_id":"cdi-performance-ac-6-pin-gy6-150cc-qmb139-ncy-brand","title":"NCY Performance AC CDI (No Rev Limiter) - GY6 \u0026 139QMB","description":"\u003cp\u003eUnlock your engine's full potential with the \u003cstrong\u003eNCY Performance CDI\u003c\/strong\u003e. Designed specifically for 139QMB and GY6-based 50cc–170cc scooters, this high-output ignition module replaces your restrictive factory CDI with a more aggressive ignition curve and, most importantly, \u003cstrong\u003eremoves the factory rev limiter\u003c\/strong\u003e — allowing your engine to reach higher RPMs and sustain power through the top of the rev range.\u003c\/p\u003e\u003cp\u003eThe rugged orange billet aluminum casing doubles as a heat sink to protect the internal transformer, which boosts system voltage to \u003cstrong\u003e400–600 volts\u003c\/strong\u003e for a hotter spark and more efficient combustion.\u003c\/p\u003e\u003ch3\u003eKey Performance Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRev Limiter Removed:\u003c\/strong\u003e Eliminates the electronic RPM ceiling found on stock units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAggressive Timing Map:\u003c\/strong\u003e Retuned ignition curve for improved acceleration and throttle response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Voltage Output:\u003c\/strong\u003e 400–600V transformer boosts spark intensity for reliable ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Housing:\u003c\/strong\u003e Protects sensitive electronics from road vibration and heat\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNCY is a Taiwan-based ISO 9001 certified manufacturer specializing in high-performance scooter components. Their CDI units are trusted by enthusiasts and tuners worldwide for consistent quality and measurable performance gains.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eRev Limiter Removed: Eliminates the electronic RPM ceiling found on stock units Aggressive Timing Map: Retuned ignition curve for improved acceleration and throttle response High-Voltage Output: 400–600V transformer boosts spark intensity for reliable ignition Billet Aluminum Housing: Protects sensitive electronics from road vibration and heat\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 0900-1005\u003c\/li\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 NCY - ISO 9001 Certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.29 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003cp\u003eThis is a \u003cstrong\u003e6-Pin (2+4) AC Ignition\u003c\/strong\u003e module compatible with most Chinese-manufactured GY6 engines:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eEngine Family\u003c\/th\u003e\n\u003cth\u003eCompatible Codes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e50cc \/ 80cc (139QMB)\u003c\/td\u003e\n\u003ctd\u003e139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e125cc \/ 150cc \/ 170cc (157QMJ)\u003c\/td\u003e\n\u003ctd\u003e157QMJ, 161QMK, 152QMI, 1P61QMK, 1P57QMJ, 1P52FMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cem\u003eDon't see your engine listed? If the engine code includes \"QM\" or \"FM\" and uses an AC-based CDI system, this module is compatible.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e Genuine 50cc scooters (Buddy\/RoughHouse) or vehicles with DC-based ignition systems (e.g., Wolf Jet II).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSafety \u0026amp; Legal:\u003c\/strong\u003e This product is intended for \u003cstrong\u003eoff-road\/racing use only\u003c\/strong\u003e. Not legal for use on public roads. California residents: not legal for use on pollution-controlled vehicles. Performance upgrades are considered racing parts and are not covered under warranty.\u003c\/p\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":67964579676481,"sku":"0900-1005","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/az-p012-6639-0-0900-1005_57166d4a-f27e-4502-9505-740d7c790994.jpg?v=1792557869","url":"https:\/\/azscooterparts.com\/products\/cdi-performance-ac-6-pin-gy6-150cc-qmb139-ncy-brand","provider":"AZScooterParts","version":"1.0","type":"link"}