Hi everyone!
It’s 2004 carbureted Night Train. Bike is completely stripped down at the moment, frame it’s on the way from powdercoating.
I wanted to check voltage regulator, rectifier actually.
I’ve searched all forum, I’ve watched dozen videos and each testing procedure, says that diodes check readings should look like below:
1. Multimeter negative lead on regulator positive wire, multimeter positive lead on each regulator AC output - voltage reading about 0.5 at each output.
2. Multimeter negative lead on each AC output, multimeter positive lead on regulator positive wire - voltage reading infinite.
3. Multimeter positive lead on regulator ground wire, multimeter negative lead on each regulator AC output - voltage reading about 0.5 at each output.
4. Multimeter negative lead on regulator ground wire, multimeter positive lead on each regulator AC output - voltage reading infinite.

After performing this, I got readings corresponding with points 1 and 2 only. Readings on both 3 and 4 shows infinite.
This made me thinking I need new voltage regulator, so I bought one. Brand new in box, OEM, eBay purchase.
When I received it, first thing I did I went through this testing procedure again - readings were exactly the same as on the old one!

Is that the way it is supposed to be??
One video I watched showed a comparison of 2 different types of rectifiers, where diodes on one of them go only one way, but…multimeter positive lead goes on regulator ground wire, multimeter negative lead goes on each regulator AC output - voltage reading about 0.5 at each output. So it’s opposite way I do on mine getting the same readings.
Does it mean my both regulators are good??
I couldn’t get any information about this particular HD voltage regulator, I mean test of it.
I really doubt the new one I got would be broken exactly the same way as the old one (the same diodes, all 3 diodes, etc.).

Maybe any of you got one on the bench and could test it this way??

I’ll appreciate any input on this.