how do you set timing on singer 6100 series?

Bobbin won't wind?

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

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

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

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

Engine revving up ?

Presser foot is loose?

Singer zigzag 457 Stylist not threading bobbin/making stitch?

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

Singer 507?

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

1965 Singer 275k sewing machine foot pedal?