Too much oil?
I was given a Singer 401, as I said I would try and fix it..The main problem is it runs very slow. Well, I thought it just needed to be cleaned up as the last owner had poured oil over the whole machine. !!!? Well, I cleaned and wiped for ever!?!? Then oiled and lubed and tested it---;it still ran slow. So thought it must be the motor (I don't know anything about motors?) But I got it apart where I could see inside it.. Then ran it and where wheel turns it was causing sparks and got warm and smoked a little... so stopped. Is the motor bad??? or is it fixable??? I hope I have explained it good enough. I just need a thumbs up or down!!!!?!?!? Thank you great people!!