Hit a wall with the ignition circuit.

[DaddyMav]

So I got a 2000 GZ250 for a trade. The speedo shows 760 miles and it looks pretty clean all in all. The PO said that it hasn't run in a while and just needed a carb cleaning and battery. So I get the bike home without it running (Dumb move, I know) and clean out the carbs, check the oil, change the gas, replace the plug and put in a new battery. The bike now turns over but wont start. After going through the motions I now found out that there is no spark. There was at one point though. It seems as though I have an intermittent spark problem. Actually got it back at one point and gone again. I think I may have traced it back to the CDI which I took to the junkyard where they tested on a good bike and it was bad. Got a new CDI and still no spark.

I tried the test for the coil that is shown in the manual last night and I'm not getting any ohm reading out of the spark plug wire so I think that may be bad also. Is there something that I'm missing on this? Is there a way for me to check for voltage from the o/w and white wires that go to the coil? Is there something else that may be burning up my ignition system that is just going to keep burning through parts if I replace them?? This is frustrating.