Originally Posted by sak658
It threads from left to right. That's probably what's wrong...
Right to left through the needle :) Also, needle goes in with flat side toward the left. Also, make sure the bobbin doesn't move backwards when you turn the wheel backwards. Someone had removed the throat plate and didn't get the nub on the bobbin area back in the slot on the throat plate. Thread kept breaking. Easy to fix, just remove throat plate, position nub on bobbin area straight up and replace throat plate with nub between the groove. I know it sounds weird, but when you look at it you will understand.