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GY6 NCY No Rev Limit CDI AC Pulse
GY6 NCY High Performance Racing CDI
Releases rev limit and advances timing on GY6 engines to allow for great speed and performance. A must have for all wanting the best performance from a GY6 engine.
Billet Aluminum Casing
We do have several No Rev CDIs for GY6 engines but the NCY is fast becoming our most popular in our shop for simple upgrades for GY6 engines and repairs to racing scooters we take out on any given Sunday.
CDI works on all GY6 50cc/150cc scooters made in China using the 139QMB/157QMJ enigine with AC pulse.
The simple way to tell if you have AC or DC pulse is size of the CDI, find yours in your scooter compare size buy focusing on plug and surrounding area.
DC pulse CDI have the circuit that change voltage from AC to DC which all stators produce AC. The pulse has nothing to do with the lights, color of wires or how many.
All Chinese made GY6 49cc four stroke scooters use AC pluse. There are rare GY6 150cc scooters that use DC pulse. All Twainese scooters and GY6 engines use DC pulse.
Stock CDIs are the same for 50s and 150 engines and look the same.
The CDI tells coil when to fire.
48 Lower States Only