Okay have a 150 merc v6 1981 I have no spark on cyl,s 3 and 4 i have changed trigger, changed 1 of the power packs,disconected w/bl wire from packs,swaped trigger wires around to see if i could move problem,checked stator voltage blue wires are low only about 130 and reds about 30 volts. The...
