Reply To: 1966 20HP Johnson

[Don]

Did you just change points/condensers, do ignition work? Perhaps the flywheel is rubbing on some of the ignition wires under the flywheel… Tell us more about what led up to this condition…Did the engine work OK before? Did you do ignition work on the engine prior to the onset of this condition? Did you just replace the coils? Perhaps you didn’t set the air gap correctly…