electrical grounds

[Nails]

Does anyone have a list where all these are located on the frame?

[ekap1200]

What are you having trouble with that is frame ( B - ) your harness B- is off of a pigtail the same length and gauge as B+ AND, its connector goes into the harness right up from the rear brake fluid reservoir/ /the pig tail is tied into the engine's ground eye term. The ground at the battery's ( B- ) just goes to the thermostat housing. The B- connector is bundled up with the fuel pumps connectors and is subjected to road water/rear tire spray and ; it is often forgotten about when cleaning up the wiring connections .
Gene Kap.

[Nails]

Thanks, Gene. I'm not dealing with a problem right exactly now. I just want to do some PM, given how many problems stem from bad grounds. I'd like to take all of them apart and deal with any corrosion.

[cranky]

.. and a tube of dielectric grease to keep 'um clean.....

[SgtSlag]

cranky is absolutely correct! Use some di-electric grease, to stall off future corrosion. Otherwise... Floating ground issues (where the ground is not making a good, electrical connection), are a nightmare to deal with. Best of luck! Cheers!

[Thud300]

One of the first things I did with my 91 was what they call in the Concours forum the "free power mod", an additional redundant ground circuit from the igniter ground wire direct to battery negative. Just another happy path for those lazy electrons to use

[SgtSlag]

Great idea! Nothing like a more direct path for all that amperage to get back to the battery. Should reduce the resistance, and the voltage loss, nicely. Thanks for sharing. Cheers!