i HOPE JOE REEVES READS THIS ONE!!!! 1972 85HP JOHNSON. DOESN'T SEEM TO BE A SPARK GOING ACROSS THE POINTS. AM WONDERING IF THE AMPLIFIER OR COIL IS BAD. BOUGHT A NEW COIL BUT SAME TROUBLE! I'VE HEARD OF THE " STEVENS TESTER" BUT NO WHERE TO BE FOUND. HOW CAN I TEST THE AMPLIFIER AND WHERE CAN I...