I've been sewing on the blue machine. Making a Whacky bag. I've noticed the stitch length varies. The faster I go the smaller the stitches. So something is needing some attention somewhere. I'll use some more Tri-Flow before I work with it today.
Also I noticed something that gives me a laugh. Every time I start to sew I see a little puff of smoke come out of the motor. I've seen this before, but usually it quits pretty quick. Probably just needs some lint and stuff cleaned out.
Joe