AIRCRAFT MAGNETO SIMPLE SPARK TEST

Once you set your magneto E Gap this simple test shows a strong spark jumping a large gap. You can also test it before to diagnose a hard starting problem which is usually just the E Gap out of adjustment. If the magneto doesn't have a impulse coupling just give it a quick short spin set to the distributor hole. You should get the same strong spark. Most shops just replace perfectly repairable mags.