Most ignition systems are part of a three-step process; something creates the spark. Another component makes it repeat itself continually. Finally, a unit breaks the whole system down happen again, hundreds of times per second. That second part of making fire happen at the spark plug is the E-Z-GO 4-Cycle Ignitor. Relays like this time the spark so that it not only occurs at the precise moment, the spark can also continually repeat itself.If you check the spark's condition and discover that it's blue or white like it should be, but it disappears rapidly, this is a problem. Inconsistencies are a good sign that the E-Z-GO 4-Cycle Ignitor is giving you issues. One quick spark and then nothing means it's time to call Buggies Unlimited for an aftermarket replacement. Do not pay a pro to install this. Its five wires and t bolts. We would hate for you to pay someone to do something you could handle yourself. Golf Carts are easy to work on when you have a friend in the biz like Buggies Unlimited.