This is on a 90 GL.

First, the front heater. I have the heater box out and split, and have
removed the blower motor, which was seized as in very hard to turn, blowing
fuses, etc. I removed and lubed it (at least what I could get to) with PB
blaster and then sewing machine oil. I snapped the blower shroud in half to
be able to get further into it, but that hasn't happened as I do not see a
way to go further without potential damage.

Is there a way to get�or any point in getting�behind the blower end of the
frame and armature?

Now it runs like a top, but I would like to know more about the condition,
like how much current should it be drawing. How do I accomplish that? I
have voltmeters but need to improve my ability to use them.

Finally, is the front blower motor different from the rear.

Almost remembering stuff I almost used to know,

Jim