Friends poulan chainsaw. He said it ran fine during the day, then quit. When trying to start it, it would not. He let it set a while and tried again. It started but would not keep running. I got it, drained the fuel. Fuel filter and lines are in good condition. Cleaned carb in USC. Treid to start and nothing, even with a shot of starting fluid. Put the spark tester on it and good spark. removed spark plug and put cap on and looked for spark. None. bad plug, right? Tried a new plug. No spark. Put tester back on and spark present. tried plug again, this time it was laying on the cylinder head and there was spark. remove it off the head and no spark. What is going on? Is the coil going bad?
I am not experienced with electric issues and not very comfortable as well.