Janome 11000 skipped stitches if any are even made at all

Perhaps this will help:

What causes thread eyelashes when sewing

Thread HELP eyelashes


http://www.generations-quilt-patterns.com/sewing-machine-tension-troubleshooting.html

take it in for a service specifically the needle/ hook timing
make sure that the thread tension is correct

Be sure you are using a brand new needle--a damaged needle frequently will skip stitches. There are other causes, including the machine has been knocked out of time.

What to Do If Your Sewing Machine Is Skipping Stitches

10 reasons for skipped stitches

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The tension(s) may be too tight and could be threaded incorrectly. Start out with a brand new needle. Be sure to RAISE the presser foot when threading the upper thread. Consult the owner's manual to be sure it is threaded in the proper order. Test your stitch on a straight stitch and adjust it so both threads meet in the middle of the fabric. This setting works for straight stitch. However, usually the upper thread tension is loosened a bit for embroidery so the bottom thread will not show on the top of the fabric. Test it on some small embroidery patterns first until it's where you want it.

Normal top tension is 3-4; normal bobbin tension (iirc) is 35 grams.
I'm betting, though, that a new needle, right way around and the correct size, would solve your skipping problems.

sometimes when a needle gets bent, it can cause the sewing machine to need a adjustment by a technican.
sometimes a jam can be caused by the thread coming off the thread take up lever
or the bobbin is turned the wrong way in the bobbin case
or the bobbin was not thread correctly

Try a ball point needle which is for stretch fabrics. Using the wrong needle can cause skipped stitches.

You must buse an anti static needle otherwise yoiu will miss stitches.

MY JANOME 4400 IS SKIPPING STITCHES, ITJUST STARTED DOING THIS, HELP!!!!

Rule of thumb: Fast needle, slow hands. This should help. GiGi