Congratulations on your new toy. Sounds like a great machine and a picture would make it perfect.

Make sure your needle is in right ..I think the flat side goes to the left, or right ,,,, not to the back ,,, Dottie Bug

Make sure needle is in correct, the flat side goes to the left ,, I belive , had this problem myself,when I first got my machine ,,, Dottie Bug

I FMQ all the time on my vintage FW. I prefer a 90/14 or 80/12 embroidery or quilting needle. On the Organ brand, these are 15x1ST. 15x1 is the needle system used in the vintage machines. 130/705H is the system in modern machines. You can use 130/705 or 15x1 needles in vintage machines. Embroidery and quilting needles have a larger eye which puts less stress on the thread. I do notice a difference when using embroidery vs universal needles. The 15x1ST needles cost more than the 15x1, and in my opinion, are worth the additional cost.

If you haven't checked your bobbin:
make sure it is in the bobbin case correctly. If it needs to be flipped over, that could cause your problem. Also, make sure it is not dented or bent.

Thank you everyone for your help, you are such a great group on here. Since this problem is happening on all my vintage machines, I am sure it is the needle. I have ordered some orange needles and hope that helps. I have to be patient for at least 2 weeks for them to arrive in Canada but I can do piecing in the meantime.

I received a lovely package from Polyparrot with size 10,11,12 orange needles. I can firstly tell you the orange needles resolved the skipped stitches and I am back FMQ. I have tried the size 12 needles with my Connecting Threads, thread and works fine for FMQ. I am using a size 14 needle with my King Tut thread but could possibly go down to a size 12. Thank you Polyparrot for the needles and your words of wisdom. I am sure you have helped many others with thread issues like myself.