What they don't tell you in the Janome Manual or from most dealers is that many of these no oil needed Janomes actually do need a drop or two of oil in the little oil wick in the bobbin case. There is a little hole in about the 10 o'clock position with what looks like lint in there that is the oil wick. My bobbin case would rattle and bounce and jam and I put my needle right through it before I found out about that **** oil wick! Just give it a drop or two of oil everytime it sounds noisy.