Originally Posted by
Watson
I know this wasn't what you asked, but thought I'd throw it out there.
Jamie Wallen has a great video on exactly how to adjust your tension on these machines. It was really helpful to me and cleared up a few misconceptions I had about thread and bobbins.
Watson
https://www.youtube.com/watch?v=Q1mRhcquZTM
and I agree with Macybaby. I had trouble with my Innova with intermitten tension issues. Turns out it was a bad bobbin winder. Got a new one and now can use any thread my little heart desires. Check your needle size too. Free motion puts alot of torque on a needle. It might not break it, but it can mess up the tension in a hurry.
Hang in there! You are learning to troubleshoot! (I know that does not ease the frustration, but it sounds Lot more positive!)