Sewing machine doesn't make correct/nice stitches

If the machine doesn't make a nice stitch, most of the time the machine isn't threaded correctly.

Please proceed as follows:

  • Remove the thread, the bobbin thread and upper thread..
  • Put a new needle in your machine (even if the needle still looks good, do it anyway).
  • We recommend to always use Schmetz needles.
  • Use a good quality thread as both lower and upper thread, always use the same
  • quality thread as lower and upper thread.
  • Make sure the top tension is set to 5 (or auto).
  • Thread the machine with presser foot up (upper thread).
  • Check if the top tension works. Before putting the thread through the needle-eye, lower the presser foot, and then pull the thread. This must now be heavier. (click here if it is not heavier)
  • Insert the under bobbin correctly.

Sewing machines with CB hook:

Sewing machines with horizontal hook:
Some hooks may look slightly different, but this doesn't matter.

Pull the thread well through the tension groove; you will feel the thread getting tighter.
You can check this by pulling on the end of the thread. If the bobbin is in the right place, it will spin nicely and quietly without wobbling.

Now you can start testing:

  • Use normal fabric (not jersey) and always sew at least 2 layers on top of each other.
  • First start with the straight stitch at stitch length 2.5 to 3.
  • Then you can test the zig-zag stitch, zig-zag width at 3 to 4 and stitch length at 2.
  • Pay attention! If the tension at the top of the fabric is not good, then the bobbin (under thread)is not threaded properly and if the tension at the bottom of the fabric is not good, then the machine is not threaded properly at the top (upper thread).

More information about the top and bottom thread tension adjustment can be found here. 


Performing periodic maintenance on your sewing machine is particularly important.
A well-maintained machine will likely run better and prevent annoying, time consuming, and costly problems later.

It is certainly advisable to give your machine regular maintenance.
You can easily do this yourself with our free maintenance tips.
View our maintenance films here!

Order your maintenance kit here including needles, oil, brush, screwdriver, etc.