Still trying to figure this thing out.
So I bought a new coil and ballast resister from Napa Auto parts. The lady at the counter didn't know what ballast resister went with the coil.
The coil I got was the Echlin IC12, I grabbed 2 ballast resisters that she thought went with it.
One meters out at 1.9 Ohms and the other at .8 Ohms. I hooked the 1.9 ohm up and it would not start the motor. I then threw the .8 ohm resistor in and it fired up.
The original resister metered out at .6 ohms before I unhooked it. Before removing the resistor the readings from the orange wire from the choke hooked to the terminal was 11.28 vdc in and 6.65 vdc on the other terminal out to the coil.
With the new resistor installed it metered out at 11.03 vdc and 7.75vdc out.

With the old coil hooked up to the old resister at the coil terminals I read 6.64vdc from the + terminal to a ground bolt.
From the positive terminal to the negative terminal it read 5.11 vdc.
From the negative terminal to a ground bolt it was 1.5vdc.

with the old coil hooked up and the new resister the readings are now 7.75vdc from the positive terminal to ground bolt.
from the positive terminal to the negative terminal it reads 6.09vdc.
and from the negative terminal to ground bolt it reads 1.64vdc.

all of the readings above are with the key in the on position.

The old coil metered out at 1.2 Primary and 9.5 secondary.
The new coil meters out at 1.3 Primary and 9.1 secondary.

I currently still have the old coil on and haven't swapped out for the new one yet. I haven't put it in the water yet but was wondering if anyone had any info.
Thanks.