We may have found other answers which could help you.
Click here for Replacement Broken BottomSinger 201 went bang , smelt and now won’t work?
Presser foot is loose?
My CG 500/550 Singer Sewing Machine's bobbin isn't working?
1965 Singer 275k sewing machine foot pedal?
Singer zigzag 457 Stylist not threading bobbin/making stitch?
Engine revving up ?