Anyone in central Fl could help with this mod??

This seems pretty straight forward, but I have one question. Instead of the 3 way splice between the relay and the coils, couldn't you go from relay to back coil to front, with there being hot in and out together in the spade to the rear coil? Or bring both front and rear to the relay and make the junction in that spade instead? It seems the three way joint is an unnecessary point of potential failure.

Note- if you are having firing issues or hard starting issues after a while after doing the mod, check your connection points. I found corrosion on my positive terminal that stopped my bike from cranking. It would turn over but wouldn't crank.

thanks bro for this post . such a great work , you have explained us so well .

I have a question here. If the wire for the original rear coil is being used to trigger the relay, wouldn?t that mean that all of the plugs are only getting spark when the ignitor box is sending signal for the rear coil to fire?

This mod does not cause the new relay to turn on/off each time a coil fires, but rather provides a more direct path from the battery to the coils. You're cutting the wire from the killswitch to the coils and using that old voltage (weak because it passes through ignition and kill switch) and using it to switch strong voltage to the coils from the battery. The coils have two inputs. One solid voltage (now from the relay) on red wire, and one pulsed input (from the ignitor box, controlling the timing of the spark, untouched by this mod) on dark green and black wires, one for each coil.

Awesome! Thank you very much. I could not shake that thought. One last question about this then: which leads on each coil get which wire?

Ok, figured out that it doesn't matter which wire you put on which post of the coil.

I did mine a little differently by using a five pin relay and connecting each coil to its own pin of the relay (both pins 87 on the relay) and seems to work great. Spark is incredibly improved on the front cylinder, unfortunately didn't resolve my rear cylinder no spark issue like I had hoped it would. Problem is that it isn't geting the signal voltage to the other connector on the coil. It's unrelated to this mod, but I've gotta track down the issue either between the pickup and igniter box, or between the igniter box and the ignition coil. Or it IS the igniter box. Here we go again.....

I think these machines run on whats called a wasted spark so the plugs will spark on every stroke hence( wasted spark) mean compression and exhaust stroke

My '93 starts much better with the new (sealed) battery...if it aint broke,dont fix it!!