What was found
RT MAGNETO REMOVED TO CHANGE BREAKER POINTS. ON REMOVAL, NOTED THAT ONE MAGNETO DRIVE CUSHION WAS MISSING. A SMALL PIECE OF THE COUPLING WAS FOUND, IT WAS HARD/BRITTLE. THE DRIVE COUPLING WAS FOUND CRACKED. SUSPECT BECAUSE ONE-HALF OF THE CUSHION WAS MISSING (2 CUSHIONS REQUIRED, ONE ON EACH SIDE OF DRIVE COUPLING LUGS). ENGINE OIL DRAINED, SCREENS CHECKED, SUM FLUSHED. NO OTHER PIECES FOUND.