1010 Negative Ground Conversion

John Deere 1010 gas with Wico distributor and 12v positive ground. Distributor is worn out and parts are NLA. Ordered new Pertronix distributor, and am converted to negative ground.

Wired distributor to new coil, swapped battery cables, replaced fuel gauge, and polarized generator at the voltage regulator. What did we miss???

Tractor started and ran good while we set the timing and tried adjusting the carb. While running the AMP light was on and brighter with more RPM...do we need to switch those leads?

Shut the tractor down to adjust length of governor rod and now none of the lights work and the tractor won't even turn over, the starter solenoid just clicks. Found battery to be warm and only measuring about 6 volts so definitely low but why warm on one end? I don't think anything we did could have hurt the starter.

Thoughts?
 

The battery being at only 6 Volts and WARM explains why the starter doesn't work.

It sounds like you did the right thing and polarized the generator BEFORE startup?

But it apparently didn't ''take'' and the battery and the generator had a pi$$ing match and the voltage regulator and perhaps the generator ''lost''.

At this point, since you have already modified it from original, why not install a 12 Volt mini alternator with internal VR and save the trouble and expense of getting the VR and generator functioning properly?
 

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