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Basic test: Disconnect and unbolt the coil and remove the spark wire from the distributor cap (it unscrews from the cap–rotate the whole coil & wire). Then remount and reconnect the coil and rig up a spark gap off that threaded spark wire terminal. Disconnect the wire going between the timer base/breaker plate and amplifier. Turn on ignition key and lightly brush the amplifier wire against a metal grounded surface. You should get sparks across your spark gap. If you do, everything is working up to that point. Proceed with pulling the flywheel and distributor cap and tend to the points. They don’t burn out like regular points, but the gap changes from wear. And the cut-out ring wears and the metal dust from it contaminates everything.