How to mend Sewing Machine Bobbin Winder Singer

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

Engine revving up ?

Machine Stuck in Reverse?

Presser foot is loose?

obtain?

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

pedal machine Singer serie K10736204?

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

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

Why does a sewing machine motor overheat?

machine motor running the wrong way?

Singer 188K1 presser bar stuck?

singer HD110?

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

1965 Singer 275k sewing machine foot pedal?

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

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

Singer zigzag 457 Stylist not threading bobbin/making stitch?

Replacing a gear in Singer Stylist 457?

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

Singer model 750 Golden touch and sew?

Singer 6234 Tension problems?

How can I fix a reverse problem in my sewing machine?

Bobbin won't wind?

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

Singer 507?

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

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

singer foot pedal ?

how to get the tension right on my machine?