Your coil is either good or bad, not weak. Plugs, QUALITY wires and a 6 pack is the best place to start.
I would agree with you on the coil; but I have seen coils fail when hot or under load on my Harley. The plugs/wires/six pack will probably be done with week.
I didnt know I was diagnosing a Harley. Lol. Put your original coil and ignitor back on, ditch that monstrousity Accell supercoil from the 80's. Your nippendenso coil is a quality piece and unless you submerged it I doubt it is defective.
You can check plug wires at night... Pop the hood when it's dark and if the wires are bad you will see a light show as it runs.
Park it in Robbies way for a week, he will have to fix it for you so he can move it out of the way.. Just put it right in front of his garage..![]()

Score!!
nice!wow, wrong firing order.. oops! It's amazing it ran at all..nice!
wow, wrong firing order.. oops! It's amazing it ran at all..nice!
Yeah thats the nice way to say it.
meh, it happens.. at least you figured it out!
it wants you to take it to work tomorrow..
A lesser engine would have destroyed itself being started with the wrong firing order
dumbass swapped in a 22r for the 20r and couldnt find out what was wrong. I got it for cheep, drove it down the road, popped the hood, swapped the wires and hauled ass.