wolfkitty

I had that trouble until I put in a new needle. It may have been the wrong size for the thread I was using.

Taughtby Grandma

It could be that the top thread slipped out of the tension part. That's happened to me before.

carolaug

Oh...I do agree with the needle...i also found the jean needle works best when putting on bindings. When you FMQ put on a new needle.

Pollytink

All the things others have suggested are good to try and let me tell you what two OSMG's (old sewing machine guys or gals--these are shop owners who service too) told us on my sm list to do. When you start sewing, be sure your takeup lever is at the top of its downward stroke. One said that if you do this, you can just lay the threads back across the bed and not even hold them and there would be no nests or tangles underneath. It has to do with getting the stitch stroke started right. I've been working on a little quilt and tried it and he's right, it worked. You know how sometimes when you press on the foot control, you have to give the handwheel a little nudge to get it going. At one point I even got a new FC, thinking that was the problem. But when I was careful to have the takeup lever at the top, it started right off with no hesitation. Just another thing to try!

wishfulthinking

Interesting. More good info to try. Thanks!