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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
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Description
NCY Performance AC CDI, GY6 (139QMB) No Rev LimiterNCY Performance AC CDI, GY6 (139QMB), No Rev Limiter Unlock your engine's full potential with the NCY Performance CDI. Designed specifically for 139QMB and GY6 based 50cc170cc scooters, this high output ignition module replaces your restrictive factory CDI with a more aggressive ignition curve and, most importantly, removes the factory rev limiter allowing your engine to reach higher RPMs and sustain power through the top of the rev range. Housed in a
NCY Performance AC CDI, GY6 (139QMB), No Rev Limiter
Unlock your engine's full potential with the NCY Performance CDI. 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, removes the factory rev limiter — allowing your engine to reach higher RPMs and sustain power through the top of the rev range.
Housed in a rugged orange billet aluminum casing, the housing doubles as a heat sink to protect the internal transformer, which boosts system voltage to 400–600 volts for a hotter spark and more efficient combustion.
Key Performance Benefits
- Rev 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
Compatibility
This is a 6-Pin (2+4) AC Ignition module compatible with most Chinese-manufactured GY6 engines:
| Engine Family | Compatible Codes |
|---|---|
| 50cc / 80cc (139QMB) | 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2 |
| 125cc / 150cc / 170cc (157QMJ) | 157QMJ, 161QMK, 152QMI, 1P61QMK, 1P57QMJ, 1P52FMI |
This CDI works with scooters like the Lance Cali Classic, Havana Classic, Lance PCH, and Lance Cabo!
****NOTE: There are no returns on electrical parts. Please compare photos and part numbers before purchasing for quality and fitment on your scooter. It is always recommended to hire a professional mechanic for installation.
Questions about parts & compatibility? Visit the contact page. - HB SCOOTERS PARTS - Professional Scooter Dealership in Southern California Since 2008
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy