Coil Mod: Why it’s Not a Recommended Solution

:laugh: :laugh: :laugh:

You guys are pure evil.... That's why I luv ya.... :laugh: :laugh: :laugh:

richard head wrote:

Nah, you miss the point. It\'s just an easy fix. It works ! You seem to be the one with the problem. If you have a flat tire, do you replace the tire or just patch it ?

Well, if the patch costs more than replacing the tire, I guess I'd replace the tire. But I'm cheap.

The real problem is if the patch may be masking a problem that may eventually lead me to get stranded.

That's the only real problem with the coil mod. If you mask the voltage drop to the coils, but still have the voltage drop to the regulator sense line, then the regulator compensates with higher voltage to the battery. This may boil over the battery and the system will then have uncontrolled voltage on it which can eventually burn out bulbs and ignitions. This scenario may never happen, but the coil mod increases the chances. And the likelihood of this happening increases on longer rides with sustained highway speed. It really sucks getting stranded on a long trip.

And I'm not saying get rid of the mod, just beware of what may happen.

Also, the stock wiring was not originally meant to handle the type of current load the Dyna S ignition puts on the switches and wires. For that, the mod would work to relieve the extra load from those parts if someone didn't want to upgrade the wires or kill switch.

I don't have anything particularly exciting to add, but in all these years and miles including over 200,000 on Dyna-S and Dyna-III I've yet to need to do any upgrade to any of my wiring, so the mod was never anything I ever considered doing. What about the old Dyna-III system? Did it use less power or more or less the same as the Dyna-S? Most my Dyna experience was with the Dyna-III, but both systems have worked fine for me as well as the stock wiring.

OMR,
Thanks for the write up on the coil/mod. I read it three times before I got, but now I get it.:woohoo:

RonKZ650 wrote:

I don't have anything particularly exciting to add, but in all these years and miles including over 200,000 on Dyna-S and Dyna-III I've yet to need to do any upgrade to any of my wiring, so the mod was never anything I ever considered doing. What about the old Dyna-III system? Did it use less power or more or less the same as the Dyna-S? Most my Dyna experience was with the Dyna-III, but both systems have worked fine for me as well as the stock wiring.

The Dyna III basically works the same, electrically, as the Dyna S. The S is just a more convenient package. Since the Dyna S and III extend the dwell so much, any slight voltage drop probably won't be noticed in running performance.

That extra dwell does use a lot more current, but in good clean connections, the drop is minimal. It's the dirt that raises the temperature of the connections and really increses the resistance at those connection. No dirt-no problem, in most cases.

I think the new name should be the "OMR coil no-mod".

Some people will still call it the WG (Works Good) coil mod.

Kawickrice wrote:

Some people will still call it the WG (Works Good)coil mod.

:lol:

Yeah I had the works good coil mod.

My battery fried itself and my dyna s at 16+ volts one day only a few thousand miles later.

Funny how going through the wiring and repairing horrible connections at the stator and other places cures the whole problem...

I gots money though, so a dyna 2000 kit and rect/reg unit and new battery and new stator and new wiring harness... all cheap shit. Just order and install. Done.

But for poor lazy folks, the coil mode works fine to get them going, for a while... or long time. :huh:

Funny, how I still use both cleaned up wiring and my own coil mod for backup performance Note: I sell those bikes...



PS. I aint rich. I just work full time 6days week, and have no life. :silly:

Peace!

Now I did the relay ignition power job, the term "mod" makes my stomach turn, I also never like the other term as I thought they were taking ownership in something that was pretty well known and often done by different manufacturers not just motorcycles.
I added Kawasaki IC ignition to a points model and felt that although I had good voltage at the coil I may as well add a relay since I was doing wiring. I am a bit mechanically OCD and since I was adding the igniter and providing power for that, that I did not want to tap into the red/yellow for that.
If you are using this fix to cover up a 2 or 3v drop in the red/yellow wire, then yes, you have other problems that you need to fix properly or you will still end up on the side of road with a different problem. If you are doing it to insure full battery voltage to the coils, and you wire it properly and neatly I don't see a problem with it.

If you are using this fix to cover up a 2 or 3v drop in the red/yellow wire, then yes, you have other problems that you need to fix properly or you will still end up on the side of road with a different problem. If you are doing it to insure full battery voltage to the coils, and you wire it properly and neatly I don't see a problem with it.

I did that. 4 or 5 years ago. Dont see a problem and dont have a problem.

I also have the pod mod :laugh: