I am having no luck figuring out how to wire this new ignition box into my existing t-bolt IV ignition. I am using the wiring diagram for "point or electronic amplifier". Problem is, the original coil has 4 wires going to it. MSD instruction does not account for the termination of all 4 of these. The four wires existing are: two purple to the (+) side of the coil, two grayish to the (-) side of the coil. One of the purple wires is from the main harness plug (+12v switched I think) and the other goes to the t-bolt IV module. One of the gray wires comes from the t-bolt IV module, and the other goes to the main harness plug (tach signal I think).
So right now I have the one gray wire from the t-bolt as my trigger and is hooked to the white wire coming out of the MSD (per directions). The purple wire coming from the main plug is terminated to the red wire from the MSD (per instructions). The orange and black from the msd go to the + and - terminals on the coil (per instructions).
Thats it. No more instructions. But there are still 2 wires left unaccounted for. The purple from the existing t-bolt and the gray that goes to the main harness plug. No where can I find instruction on where these go. I tried putting the extra purple under the + side of the coil and the extra gray under the - side of the coil but got no spark.
If anyone out there can help me, it would be greatly appreciated!!! I am stumped