Originally Posted by
Kat Sews
The original owners manual for my 201 recommends soaking with kerosene until it moves freely then use machine oil.
i didn't know that it's written in the manual about the kerosene. guess they've been doing it ever since. as what others mentioned, if you do this, make sure that all electrical/cable/motor parts are removed.
i am pretty sure your potted motor will need rewiring. here's
THE INSTRUCTIONS IN REWIRING YOUR POTTED MOTOR .