1990 60HP MERC WITHOUT VOLTAGE REGULATOR. CHARGING SYSTEM IS PUTING OUT 16+ VOLTS.THIS WAS DOUBLE CHECKED WITH VOLT METER.IT HAS CAUSED DEPTH FINDER MALFUCTION.THE STATOR RESISTANCE IS WITHIN SPEC.RECTIFIER REPLACED LAST YEAR (BECAUSE SYSTEM WOULD NOT CHARGE AND WAS OK UNTILL NOW.)BATTERY WAS...