Red thread on the top and Blue in the bobbin. Red shows as a dot on the underneath of the cloth. It doesn't matter what the tension is on, the red dot still shows. I am messing with some older machines and a 15 clone. Figured this was a tension problem not a vintage problem. HELPPPPPP :lol:
Just realized I didn't change the needle out. Nope that's not it. I am stumped.