Duraspark II with ram air debacle

[351mach1]

OK, now I'm losing my mind. Several times I checked the pin at the plug behind the engine and was getting 6.5V. I was just about to button up the wiring and decided to check again and now its reading 12.5V. What gives

 

[midlife]

Under what conditions were you checking? Engine on or off? If off, you'll see full battery voltage with points open and about 6V with it closed. With the engine running, you should see something like 1V below battery voltage, which is the average voltage with points being opened and closed rapidly. Your meter may read something different (due to its averaging a variable voltage over time) but something well above 6V and somewhere below full battery voltage.

 

[351mach1]

Just verified:
Engine off, duraspark and coil completely disconnected, and reading directly at the engine wiring harness, I am reading 12.5 volts.

My distributor doesn't have points.

 

[mach1sc]

Karl Kustoms sells a magnetic pickup distributor for 50$ I have been using it for 6 months now and it has preformed great. Model KPPJM6606 search google with that # and it will come up. I am using it with Duraspark type setup.

 

[midlife]

Just verified:
Engine off, duraspark and coil completely disconnected, and reading directly at the engine wiring harness, I am reading 12.5 volts.

My distributor doesn't have points.

Good. That's what you should be reading.

 

[351mach1]

Good. That's what you should be reading.

How would I verify that the resistance wire in the harness exists and is giving the correct voltage as to not burn out the coil? I thought I should be reading 6.5V from the engine harness.