My 1983 mercury 80 hp is behaving strange i struggle to get it started and once running it will start consistently, let it sit over night, no spark and back to square one. I have replaced the trigger . Next i am going to replace the stator and switchbox. I am trying to find the best prices on ebay but there are so many diffrent numbers on this two items it blow my mind. I am on a shoe string buget and can not order the wrong parts . Any help in directing me to the right part number will be appreciated. I have gone through a lot of trouble shooting on this motor following directions on this board. And i think it can only be the stator or switchbox. I do not want to risk buying just one and damage the new part because the other old part is at fault.