70 up charging system upgrade question

Out of curiosity, what DVM are you using?

4spdragtop said

I'm pretty confident the ECU is grounded well. To test this I put meter on"continuity" and get "beeps" engine to Ecu, VR case to ECU, batt -ve to ecu.

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It may be just fine as is.
I know paint, especially when new, is a hard thing for anyone to scrape off just for a solid ground. Coating on the ECU case can be an issue as well. A ring terminal and separate ground wire under one of the bolts might be an option to consider.

4spdragtop said

Although I'm not sure if I did batt -ve to ecu case. That would give me voltage drop I believe? Meter should read 0 for that correct?

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On the volt scale going from ground to ground you'll see nothing. If you go positive batt to negative case is where you'll see any voltage difference compared to across the battery posts.

4spdragtop said

.....thought maybe the relay needed to be jumped as well?......

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Not sure on that. In key start any voltage on it?
See post 3 here...……..
Starter won't engage when key is turned.


Does seem to me 12 V to the positive coil (hot wire) should fire in start or run with the key switch unless somethings acting as a kill switch on you?
Do you have a tach or condenser on the coil you could take out of the system while testing?