My 1979 Merc 140 was overcharging at around 16.4 volt at WOT and 14.5 volts at idol. This must have burned out the rectifier, therefor it was'nt charging enough,(at about 12.2 volts, and ran bad). I replaced the rectifier again and now its back up to 14-16 volts. The stator, trigger, ign...