Why is my serger bunching up?

If the upper looper thread loops are visible on the wrong side, they’re either too loose or the lower looper thread is pulling them too tight. So you can either turn the lower looper tension dial down or turn the upper looper tension dial up.

Why is the back of my stitching loose?

– The bobbin thread could be wound incorrectly. – Check the bobbin was inserted properly. – Make sure that you are using a bobbin designed for this machine. – Make sure that the bobbin was threaded properly in the shuttle race.

How do I adjust the tension on my brother serger?

Turn the thread tension dial clockwise to tighten the upper thread tension. If the upper thread is not threaded correctly or the bobbin is not installed correctly, it may not be possible to set the correct thread tension.

Why is my serger gathering my fabric?

Neater gathering with a serger will occur with two needles engaged and the tension on the needles tightened. It is important to only tighten the needle tension and not the looper tension. It is the increased tension that will cause the fabric to gather. To tighten the tension turn the needle dials to a higher number.

What is perfect tension on a serger?

Perfecting your tension means creating a perfect balance of “tightness” between all of the threads. Imagine a teeny tiny game of tug of war between the threads. When the fabric is perfectly settled between all threads, you’ve got yourself a balanced stitch. With a two needle serger, this means four threads.

How do I adjust the tension on my Juki Serger?

Now depending on your serger, you will either be working with a set of knobs or a set of dials to adjust your tension. The numbers will also be unique to your particular make and model. My Juki uses a knob system with each on a scale from 1–9. As you can imagine the higher the number the higher the tension.

What happens when looper tension is set too low?

In the case of the lower looper thread tension being set too low, you will see the lower looper thread (fuschia) being carried over to the front side of the stitch by the upper looper thread (blue). Needle tension isn’t quite as finicky as looper tension, but it is still just as important.

Is your left needle thread tension too low?

If you’ve ever sewn something with negative ease and put it on only to see your thread showing on your seams, your left needle thread tension is too low. Just like the loose right needle thread, if the left needle thread (purple) is too loose, you will see loose stitches on the front of the stitch and little loops on the backside of your stitch.