OK I understand now. thank you. Don't worry about English translation if I need to clarify I will let you know. It can be very bad if I don't understand and then give advice.

Nothing to do except BE SURE wiring of alternator matches your diagram and instructions from us at stovebolt. NOT youtube. This wiring is very easy if you just focus on the alternator for now. I should not mention ballast resistor. You said coil has text saying "internally resisted" so no ballast is required. I will explain that later. The resistance is just to protect points during driving. (ignition system)

Yes... remove wire from regulator. For now you can wire alternator as you have shown. There is an ignition system and a charging system. Your motor starts (ignition) but no charging, so we will just talk charging for now. We will clean up ignition system later. Enhance the distribution.

A new good battery needs to be in place from now on. The battery will not run down overnight unless it is a bad battery. After charging it to 12.6 and just trying to get the alternator to work it will still have voltage. That voltage should be held overnight with no shut off switch necessary unless you have a battery drain. Meaning something is ON that should not be on. Just disconnect the negative battery cable at the battery post when done with testing that we ask for. So put new battery on, retest alternator output when motor running a fast idle. BE SURE to read about grounding battery to motor and grounding alternator case.
"The alternator case must be grounded. This is accomplished by the alternator case being bolted to brackets on the motor. The battery negative cable is bolted to the motor to complete the path back to battery.. There can be no paint, corrosion, rubber or loose bolts at these locations which would interrupt the ground path."

At your age and experience, you are doing very well. Once we get the alternator to charge a good battery, we will go over all other electrical systems with you so you can learn.
It would be nice to see many good pics of your alternator as installed. Also the wiring and where wires go. One thing we know for sure, something is wrong and we are trying to catch it from 7500 km away from you. You and your Dad will find it with our help.

Last edited by bartamos; 01/06/2023 1:10 AM.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn