How to mend Gear Singer Model

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

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

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

obtain?

Singer zigzag 457 Stylist not threading bobbin/making stitch?

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

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

Replacing a gear in Singer Stylist 457?

Why does a sewing machine motor overheat?

pedal machine Singer serie K10736204?

Engine revving up ?

Singer 507?

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

1965 Singer 275k sewing machine foot pedal?

Presser foot is loose?

how to get the tension right on my machine?

Singer sewing machine 626 kno?

machine motor running the wrong way?

Bobbin won't wind?

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

Singer model 750 Golden touch and sew?

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

Singer 188K1 presser bar stuck?

singer HD110?

Singer 6234 Tension problems?

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

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

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

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

Machine Stuck in Reverse?