ArizonaKAT,
Before you go with the oils and or cleaners, pull the bobbin and carrier out and look real close there. When we got our FW it would not turn. I found the tail of one ( 1 ) thread sticking out from under the bobbin area. I had to disassemble the bobbin parts to clear it out. That's all it was, one lousy thread that had jammed up the entire machine.
Go here: {
http://thefeatherweight221factory.com/page10.php } and look down towards the left side were it says
Thread or Machine Jam. Click on that. He has instructions on how to fix the problem if that's what it is.
If the machine was running good then started struggling I'd doubt it's a lube problem.
Joe