Just a little update, finally got everything corrected - after 1 hour of the supervisor calling Albany and back and forth.
I now have a Class B moped registration that has been corrected from MAJ to Sachs.
What they told me is that back in the day, all mopeds were considered ATVs. This one never got it's reg updated when the laws were changed to have Moped classes and the 2nd owner simply re-registered it as an ATV and tinkered around with it in his garage not really ever going anywhere so he didn't know the difference.
But it's all been fixed. I'm shocked honestly, I thought for sure they were going to come up with some obscure odd thing for why I couldn't fix all that.
Incidentally, what make would MAJ even be?!