How to mend Singer 807

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

Singer 522?

Singer 507?

Singer model 750 Golden touch and sew?

pedal machine Singer serie K10736204?

Singer zigzag 457 Stylist not threading bobbin/making stitch?

How can I replace the Top Vertical Shaft Bevel Gear for SINGER MODEL 248?

1965 Singer 275k sewing machine foot pedal?

singer foot pedal ?

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

obtain?

Presser foot is loose?

Why does a sewing machine motor overheat?

I'm in Australia and need a Bobbin case for a singer 196K205?

singer HD110?

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

Replacing a gear in Singer Stylist 457?

Bobbin won't wind?

how to get the tension right on my machine?

Hello zigzag industrial singer 457 u105 not stylist is missing stitches?

machine motor running the wrong way?

Singer 6234 Tension problems?

Machine Stuck in Reverse?

Why won't my Singer Touch Tronic pick up the bobbin thread? ?

My bobbin case for Singer 2662 will not seat right and I cannot sew?

Engine revving up ?

where can I get a thread guide post for a Singer Touchtronic?

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

foot pedal 619490-001 CR505?

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