Re: TR.....Wiring diagram?
The RESISTOR in the diagram is not needed if you have a stock wiring harness 78 to 90.
This diagram is for someone building a wiring harness from scratch...
Like someone rewiring your own jeep.
The resistor is already included in stock wiring harnesses, 78 to 90.
You just don't see the resistor, because it's a resistor wire included in the stock wiring harness.
When I started with this upgrade stuff back in January, we had all of these questions then,
But back then it was people telling me how stupid I was...
A resistor IS NOT a voltage dropping or voltage limiting device.
A resistor is a CURRENT choke.
Current is voltage and amperage together...
This is the simplest explanation I can think of...
If you check the voltage at the coil with the key on, and the engine not running, you should show very close to battery voltage.
When you start the engine, you start to use current (voltage & amperage).
The resistor just slows things down a bit... Like a restriction on a water line.
The entire load of the ignition coil grounds through the DuraSpark module.
The average ignition coil can draw up to 30 amps.
The TFI coil can draw up to 50 amps.
If you try to run 30 to 50 amps directly through the DuraSpark module, you will kill it in short order.
The resistor just chokes things down so the entire load of the coil is kept around 10 amps or so...
With out getting into textbook descriptions, that's as simple as I can make it.
I'm a tech geek, and I don't always know how to explain it for normal people.
"I Have The Body Of A God... Buddha"