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CDI 50cc 150cc Scooter ATV Quad *NO REV LIMIT*
Description
CDI UNIT for 50cc, 150cc, ATV, SCOOTERS, GO-KART , QUAD
NO REV LIMIT AC CDI for 4 STROKE
65L x 38W x 22D mm dimensions
Universal CDI that fits a wide range , including, Honda Yamaha Suzuki Kawasaki
Mechanics Note on distinguishing AC fired or DC fired CDI box :
- In the GY6 6-plug set-up, you have AC if you have 3-wires going into the 4-plug side and you have 2-wires going into the 2-plug side. On the other hand, you have DC if you have the larger CDI box, 3 or 4 wires going into the 4-plug side and only 1 wire going into the 2-plug side.
- In general, the DC CDI's tend to be larger in size than the AC ones. Kindly let me know your old CDI box size with many thanks ,I will let you know that it's AC fired or DC fired.
- Another test is if the headlights turn on without the engine running, (with just the key on), it is a DC system. In the AC system the headlight requires the engine to be running. Another indication is, if the engine will only run with a battery it is DC. If it will run without a battery, it is a AC system.
Please check wheather you need the AC fired CDI or DC fired CDI for your scooter before you order,thanks
What does a CDI unit do..........
Basically it takes an AC voltage from the stator (alternator) and feeds it to a capacitor in the CDI... this boosts the voltage to about 400 volts A signal comes from the stator when the flywheel is in a particular position and the CDI releases the capacitor charge to the ignition coil and it jacks up the voltage to 15,000+ volts and send it to the spark plug.. that sparks..