how do i change a broken needle in a singer simple?

Bobbin won't wind?

Engine revving up ?

Singer zigzag 457 Stylist not threading bobbin/making stitch?

Singer 507?

What size needles can I use for my Singer 39a3?

Need a service manual for a Singer Treadle Sewing Machine Model 66-1?

My CG 500/550 Singer Sewing Machine's bobbin isn't working?

the thread is bunching on underside of fabric it looks like birdnest?

1965 Singer 275k sewing machine foot pedal?

Need an equivalent to an old Hunts WA71 capacitor/rectifier?

Singer 201 went bang , smelt and now won’t work?

Presser foot is loose?