How do I fix my Singer Touch and Sew to rotate the mechanism under the bobb?

Presser foot is loose?

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

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

1965 Singer 275k sewing machine foot pedal?

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

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

Bobbin won't wind?

Singer zigzag 457 Stylist not threading bobbin/making stitch?

Singer 507?

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

Engine revving up ?

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