I was geeting a small spark Friday on my '85 trx 250 and then it quit sparking. I am getting the correct AC voltages from the stator assembly (9 or 30 vac I don't remember right now). What valtages does the CDI send to the spark plug wires. AC/DC? Can I read this with a Fluke Multimeter. I can see the polarity change when it is set to DC but the voltages are in the milli volt range. Is my CDI bad?