Do you have wiring diagram you could email me? And a picture(s) of the CDI? This is out of my sphere of knowledge, but I'll help as best I can. But I need doc's. I'll send my email address by private message.

 

Sorry for the long delay in responding. I've been really sick with the flu since last saturday. I'm finally doing much better, though I still have a bad cold.

On your pic's and diagrams you sent me, many of them aren't readable. The text (like colors and module names) are just blurs, so I don't have complete info. The color "*.png" file I can't make out at all.

But there is some info to go on.

You said your quad started and ran with the black, and black/white were disconnected. Yet according to your wiring diagram this cannot be, since only one side of the ignition coil would be driven. The other side of the coil - the black wire (according to the diagram) gets power - gets pulled to 12 volts via the fan controller. Your diagram must be wrong.

I can't read the color *.png diagram you sent at all (it is just blurs), so if that is different from the others I don't know.

You also said that the engine wouldn't die with the kill switches. That part makes sense because kill switch wires are most commonly black/white wires. So I would put in the new CDI and repeat your start up test like you did before just to verify that the engine is running as before.

Then use a meter set to measure ohms on the 2K ohm scale (engine stopped and CDI unplugged) that the resistance of the kill switch pin in the harness at the CDI connector to ground measures zero ohms when *any* kill switch is on, and infinite ohms (usually display as "ol" for open loop, or just dashes such as "----"). If so hook up the black white wire to the CDI and see if the quad runs with the kill switches set to the run position, and stops the engine if any of the kill switches are set to the "stop" position

I don't know what the black wire does yet. So let's leave it disconnected fro now and see if we can get to a running quad with the ability to shut it down.

 

Thanks for getting back to me. Shall i try to resend all of the images i have? i also found this image which corresponds with the colors from my CDI.

Google Image Result for http://i01.i.aliimg.com/img/pb/855/249/254/1277113128997_hz-myalibaba-web10_8519.jpg

could this wiring be right for my quad? The colors are the same and from the multiple diagrams i have, it seems to be right....

 

I received all your pictures and can open them fine. The problem is that the resolution is so poor I can't read and text or colors. For example this is what I got:



This image is quite a bit different from the 'IMG_1552.jpeg' you sent me (one of the ones I could sort of read). On this image there is AC power winding in the stator, and the CDI is DC powered.

In the color diagram example above I see that that CDI is AC powered (though I cannot read the colors). And on the link above it too is AC powered (the red and green wires). So let's find out which stator you have:

How many wires come out of the stator through the engine side cover, and what are the colors? Once we know that then we can identify whether you have an AC power winding, and what colors those are. Then we can ohm out the wiring harness to see if they get up to your CDI connectors.

But you had this running with two wires (black and black/white) disconnected at one time. Is that info still correct, or maybe an unknown at this point?

 

Hi Lynn. i ran the tests that you suggested yesterday, and was failing it get a spark. i grounded the cdi via the "2nd" black wire, got a spark and got the engine running. i then killed the engine using the black/white. So problem solved! i will wire up a separate kill switch system. I believe the problems i had with the first CDI came from me "grounding" it via an output from the ignition coil, which would obviously destroy it! It seems the original Commanche system used the ignition coil to return power to the CDI (not certain why?). Thanks for your help! good to have the machine running again!

 

I'm glad you got it running .