Old janome. I had a old janome given to me, it is blue with decorative metal down the side,and has

Question

I had a old janome given to me, it is blue with decorative metal down the side,and has a pedal foot, on the foot it says model f c 1, I have tried to thread it but it still doesn't sew right,I may be doing it wrong, but I can't find anything on the net about this model,can some one help please