Purchased a non running wavejammer, it had no spark and original coil was missing. I have relaced coil and pulser coil with new because it tested bad. Charge coil tests ok. Is there any way to test the CDI with a multimeter? I really want to get this thing going but I don't want to spend another $350 bucks without being sure. This is my first PWC but I have worked on older boats, atv's, cars, RV's, appliances.