I have been rebuilding a stihl 032 av. new caber rings, carb kit, fuel/impulse lines, and replaced points/condensor with a nova trigger. Put it all back together, starts up and runs fine for a few minutes then dies and won't restart right away. Did this several times and decided to try a new nova module, same results. So, I finally used an inline spark tester and the saw does indeed lose spark after running for a few minutes. To me, this indicates that the ignition coil is failing when it heats up. Does that sound right? And if that is the case, anyone have a good used coil?