Alright, I was given an Alphasports lg-150 Atv, and was told it has an electrical problem, well it turns out the CDI Ignition box isnt connected, and the wires are not in a connectable harness to reconnect them. So my question is, how are the cdi boxes wired, I cannot find a wiring diagram for what wires plug into what connector. I have 6 wires, two blacks, two reds, a green, and a gray. And well the cdi box has a two wire connector, then a four wire connector. Ive included a picture

 

Besides the connector being wrong, those wire colors aren't anything like you would expect for wiring to a CDI.

Are you sure this is the right connector? Perhaps this connector was added to interface to a performance CDI? In any case, the colors of the short pigtail wires leaving the connector that you show in the picture are not important. What is important is the wire colors of the wire harness side that enter the connector.

So what are those colors?

The reason these colors are important is that each of these disappear into the harness and come back out somewhere else. When they pop back out of the wire harness they will still be same color. Also, almost all quads use a single color wire for any one function. For example the kill switch wire is often black with a white stripe. If you see this is true by looking at a kill switch, then you pretty much assume that all Black with White Stripe wires are tied together, and they are all kill switch wires.

Thus you can use these two assumptions to see where the wires are going. For example, a pink mystery wire enters the harness. You look at all the connectors coming out of the harness, and find that a pink wire goes to the brake light. That really narrows down the possibilities... It must be a tail light connection coming from the headlight switch, or a brake light connection coming from the brake switch (You know it is not ground because you already noticed that all ground wires are green by looking at the wire colors that are bolted to the frame).

The CDI is often powered and always triggered from the stator. So what are the colors of the wires coming from of the stator? Again, be sure to quote only the colors of the wires in the main harness from the stator connector. The wires from that connector going into the engine (and stator) are completely irrelavant.

The output of the CDI goes to the ignition coil. So what are the wire colors that connect to the ignition coil? One will be ground and the other will be the CDI output.

By analyzing these colors and using common color codes we have a really good chance of knowing exactly what the colors of wires should be at the CDI connector. Then we can see if that matches your mystery connector.

What year is this quad? One more thing that we will need to determine at some point is whether the CDI is AC powered or DC powered. But let's try and find the CDI connector first. Older quads are olmost always AC powered. Newer ones can be either.