Wizcrafts was right on it was the check spring loosens and turned a little causing the missed stitches I did check my hook play and needle height all very good advice and I thank each one of u
I discovered it was out of time I put it back in time but it will still skip a stitch 1 out of 10 stitches what is the largest thread size this machine will handle I have 137/17 needles thank u for help