Yep, that's all I did. Just leave the black wire with the white stripe unhooked and it should run.

 

Hi, i tried wiring up my km racing cdi box today3-22-09 but it would not work still need help. thanks

 

I just went out and double checked the connection. My KM Racing box had the two wire connector with the orange and black wires, a white wire with a red stripe, a black wire with a red stripe and a black wire with a white stripe. I connected the twin wire connector to the twin wire connector on the Eton wiring harness, hooked the black wire with the red stripe to the black wire with the red stripe on my Eton harness and the white wire with the red stripe to the blue wire with the yellow stripe on the Eton harness. The black wire with the white stripe from the KM box was left unhooked. The wire that I originally hooked this gound into on the stock Eton harness, when my machine wasn't running, was a blue wire with a white stripe. This blue wire with the white stripe is also left unhooked to anything. Send over a pic of your box if you can and post what wire colors you are dealing with.

Here is my box:



Brad

BTW I just happened to notice the wire I left unhooked had a female connector and the other two are male ends.

 

Hi my trz50 cdi box looks just like your km box with the same color wires. my km racing box is completly different . Ill try the trz box and see what happens. thanks mark

 

I tried the wiring with the black white unhook and the quad fired right up. It will not turn off though. Any ideas??

 

I don't know anything about the wiring of the boxes earlier in this thread, but traditionally on most CDI's a black white wire is the "kill engine" connection. You short it to ground to kill the engine and leave it hanging free to allow the engine to run.

Sounds like the black/white on you CDI is also the kill connection, and it sounds like your kill switch wiring and/or switches on the quad are stuck in the "kill" position. Thus when you hook it up you get no spark, and when you unhook it you get spark and the engine runs.

Take an ohmmeter and measure the kill wire in the wiring harness (not the CDI wire) to engine ground. Do this while all kill switches are in the "run" position, and also make sure the ignition switch is on. If it reads zero ohms to ground then one of your kill switches is stuck on or the wiring is grounded out somewhere. Uplug the kill switches one at a time until the short goes away. I have three kill switches on my quad, any one of which can kill the spark. Yours is probably similar:

1) One half of the ignition switch shorts the kill wire to ground in the 'off' position
2) Left Handlebar kill switch
3) Tether cord kill switch

If all the switches are disconnected and the kill wire is still shorted to ground then you have a short to ground in the wiring harness.