Reb

Not sure why mine does. But, I took it to my dealer to check my FMQ and the first thing they checked was the bobbin inside casing mechinism found out it was dry. They put in a drop of oil and sounded smooth as glass after that. They informed me that a drop of oil should be applied after each bobbin used up. However, the Mfg did not state that in the manual. They have a real quality service repair dept. They are the ones who discovered this. Glad for you with your Janome, one less thing to think about.