Sorry the link didn't work. I got it from QB. I save the interesting ones to a word document. Anyway just try Sew-Classic.com and it should go. They are located in Ohio and ship quickly. That's why we use them. The good prices don't hurt either.
New parts/wiring can be obtained from sew-classic.com.
Jennie at sew-classic can give you help and advise further.
I have parts ordered, order number 3, for parts, for my daughters FW, right now. I bought the most wonderful foot controller from them and glad of it. Have them wire any foot controller for a small charge. It is well worth it.
Sewing machines can cause bad shocks if the frame is electrified. You are lucky it was only sparks. A grounded receptacle is always good.
Have you ever felt a slight vibratory feeling in your sewing machine while plugged in and not sewing. That is stray voltage. My 201-2 has it and DH can't feel it. He's an electrician and I can't get him to acknowlege this is happening. Had a lamp like that once and it turned into a "shocker". Good luck with the machine.
A link for re-wiring motors. Great info!!
http://www.ismacs.net/singer_sewing_...ic-decals.html Listing and pics of various Singer paint and decals
http://www.burdastyle.com/blog/how-t...sewing-machine - blog on what to look for when buying a vintage machine. Really good!