What you will need to do is buy or build a DVA adapter. Its a peak reading adapter to make a voltmeter able to read the pulsing voltage from your stator. Using an ohm meter is ok, but if there is a short in the stator windings, it might not make a huge difference in the stator ohm readings, but the DVA reads the actual output which is what matters.Once you have the adapter and voltmeter, go to CDI's website to look at their troubleshooting guide that will give you the voltage ranges that your stator should be putting out along with a whole lot of other troubleshooting steps. with your year model, since you have replaced the trigger, the only things left are the stator $$$ and the switchbox as I seriously doubt all 4 coils are bad.. It might just be crappy corroded wires or a component might be bad. just don't keep throwing parts at it.also, remove the kill switch wire and see if you have spark before you spend your money. I had a classic 50 once with two cylinders that had no spark. I built a DVA adapter and discovered my switchbox was bad. Everyone was telling me stator ($300), instead I only spent $150 on the switchbox, which if i had assumed everone was right, i would have been out $450 by the time I had it running.
