So I took off the cutout and opened up. No wires appear to be broke and solder looks good. However the gap between the points is almost an eighth of an inch. Is that right?
In attachment a electric schema of the cutout.
The points distance isn't that critical. I think they were set this way when the cutout was made.
What you can do to see if it should work is, with the cutout of the generator, connect the generator connection to + 12V and the steel part of it's frame to - 12V. The points should close as a relay. If they don't close, the shunt winding is open and your cutout is toasted.
If it close you should have +12V on the battery connection of the cutout, if not clean the points and test again.
By playing with the point distance you only change the tension for closing the points.
I should just replace it with a Fun project VR or a diode style cutout. If your generator is in good condition it will solve your charging problem.
1/8" is way too much gap, 1/16" would be better. If the armature is too far from the coil there may not be enough magnetism produced to pull the armature down.
While you have it off, check it for continuity.
Ok I tried this and got nothing Might not have used big enough wire but I should have seen some movement
William: Is this a new repro cutout? If so junk it. Dan
Just junk It and use a Fun project VR or a diode style cutout.
I don't know how "new" it is but have had it for at least 15 years. This waste first time I went to use it. I bought it new