NCY Performance CDI (AC, 6 Pin); GY6, QMB139

SKU 0900-1005
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This NCY performance scooter CDI igniter module works on most current AC GY6 50cc/150cc scooters made in China using the 139QMB/157QMJ engine. Higher voltage output, aggressive mapping as well as the removal of your rev limiter make this ideal for custom builds, or just simply trying to get a few more MPH's. A billet aluminum case protects this from road debris.

The system voltage is raised up to 400-600 Volts by a transformer inside the scooter CDI module.

NOTE: This part is for off-road use only and carries NO WARRANTY.  USE AT YOUR OWN RISK.

Brand: NCY
 Fits: Most AC GY6 50/150cc Scooters using the Chinese 139QMB/157QMJ Engine                       DOES NOT FIT ANY GENUINE BRAND 50cc SCOOTERS
 Size: 6 pin

Please be sure to confirm the connector design will match and that you have an AC ignition system before ordering.

This will not work with a 1952 Nash Rambler. Nor will it fit a 150cc Wolf Jet II. The Jet II is a DC system.

This product is intended for off-road use only.

Not legal for use in California on pollution controlled vehicles. Check local laws before installing.


This product is not intended for use on public roads or land.

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  • 30-day return period
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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