I have a G-26 on magneto that stopped in mid-flight. When I hold the body of a new plug against the cylinder and spin the engine with a starter, no spark ! Kill switch has been removed from the circuit.

Where do I begin to look ?

Can the magneto coil, and the CE coil be Ohmed out, and verified ?

What's the normal trouble shooting procedure to isolate my problem ?

Thanks in advance.

Ed