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Sews fine at lower speed, but when you speed up, every few inches loops of thread clump up on the bottom side .

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Bunching lower thread is actually the upper thread not having enough tension.

Posted on Jul 23, 2009

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I have a Janome magnolia 7318. when I lower feed dogs to quilt it will not sew circles or feathers well. It pulls bobbin thread up on top in loops.


I've found that when FMQing, I usually need to increase the bobbin tension to keep the bobbin thread down (for this reason, I have a separate bobbin case that has the tension adjusted that is used only for FMQ). You may even need to decrease the top tension if the top thread is "pulling" the bobbin thread up.

Jun 18, 2017 | Janome Sewing Machines

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Kenmore mini ultra The top thread breaks off from needle after a few stitches. The bobbin seems to Be catching the top thread. Thank you. ??


If the top thread sews a few inches and then breaks, something is catching the top thread and holding it until it breaks. Usually, this will happen when using the old style thread cones with the slit in the edge to keep the thread from raveling off the spool. To prevent the thread from hanging up, turn the thread spool over so the slit is at the top instead of the bottom. Sometimes top thread breaks will happen if the thread becomes looped around the thread spool pin.

Remove the thread, ALWAYS RAISE the presser foot and then rethread the upper thread. Verify that the thread path is correct and that the thread has not looped around a guide.

If the thread is fraying at the needle eye, the needle/thread are not compatible. Also, the tension may be too high.

Check that the upper tension disk is clean--no gunk buildup or thread pieces stuck.

If the thread is actually breaking when it penetrates the needle plate hole, there may be a burr or nick somewhere below that is catching the upper thread. You can wrap your finger with a piece of fine fabric, like an old pair of hosier, fine knit fabric, etc. and running your finger around in the bobbin area, under the needle plate. If you get snags, then you have a burr or nick. If it is small, you can sometimes smooth it with a fine emery board. If it is a large burr, you may need to purchase a replacement part.


Why Does My Top Thread Keep Breaking Sewing Machine

Sewing Machine Problem 1 Thread Breakage

Sewing Machine Thread Keeps Breaking

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Sep 05, 2016 | Kenmore Sewing Machines

1 Answer

The thread for the top needle just sews and loops onto the lower thread


I think you are saying that there is a loop showing on the bottom of the lower thread stitch. If the lower stitch looks correct and not bunching, you will need to change the tension on the upper stitch. Make sure that your threads are firmly inserted within the discs also before adjusting the tension. It doesn't take much to change the tension so take it slowly.

Dec 31, 2013 | Sewing Machines

1 Answer

Sews about 5 stitches then stops and beeps. stitches look fine, just will not keep sewing


count the beeps and refer to the owners manaul as for troublshooting tips

Dec 03, 2013 | Singer 8780 Sewing Machine

1 Answer

My tension is very loose when I do freemotion quilting. It is fine on the top, but the bottom gets tangled. It sews fine when I have the walking foot on, but when I put on the different plate for...


Hi Leann: Think about how a sewing machine works. Now think about what kind of difference an 1/8th of an inch distance would make. Yes. You will need to adjust your top tension when you do free motion work. Keep in mind that plate is not just stopping your feed dogs from working... it's holding your materials that far away from the bed of the machine... so when the thread makes a loop and tightens for the stitch it has the extra 1/8th of an inch to make up for... if the tension isn't right... you got loops. There are no "specific" settings for tensions... you learn by doing you stitch a few stitches on like materials and tighten until you see a good stitch.

Sep 29, 2013 | Janome 1600P-DB Mechanical Sewing Machine

1 Answer

Pfaff machine -sews with thread loops forming on the underside of the fabric.


This is usualy a thread tension problem. Adjust the upper thread tension first. If tightening the upper thread tension doesn't work, then adjust the bobbin holder (lower thread tension) check with the user manual for your specific machine for the correct procedure.

May 17, 2011 | PfaFF Sewing Machines

1 Answer

Right hand needle comes un threaded. sews fine for about 5-10 inches then i hear a small clunk sound and the thead breaks near the needle. Thanks for helping me. I just spent over $100 because the far...


Many times you can get a small burr on the tip of the lower looper and it will break one of the needle threads. Run your finger nail off the tip of the lower looper, all around, and check for a snag as your finger nail slides off the tip of the looper. You can get some very fine sand paper 600 grit and gently rub on the back side, top, and bottom tip of the looper. Never the front side of the looper. Try serging again and see of that doesn't help.

May 03, 2011 | Janome MyLock 204D Mechanical Sewing...

1 Answer

Thread clumps and knots on the bottom of what I'm sewing. Sews smooth for a few seconds and more clumps. I've rethreaded and adjusted the tension....no help there.


It is because the thread is not going through the tension discs right. Rethread, then pull on the top thread with the presser foot up, it should feed smoothly, now lower the presser foot, the top thread should barely move. This usually seats the thread in the tension discs.

Nov 28, 2010 | Singer 3116 Simple

1 Answer

I have an old singer sewing machine 401A. The top thread/needle won't pick up the bottom bobbin thread when it sews. What do I do?


You can download a manual for $10 at www.sewingmanuals.com and it should help you. A couple of suggestions though, is your needle inserted correctly? Flat side facing the rear of the machine, fresh needle? Threaded correctly on top and bobbin area? Is your thread good not too old and the same type in bobbin and top? Did you leave a long enough tail in the bobbin thread? 3-4 inches which you hold with your left hand. Is the thread in the bobbin unwinding the right way? Are you turning the handwheel towards you, not away from you at least two revolutions or until you see the thread loop? Try these suggestions, and I am sure one will work unless your timing is off and it needs professional service.

Sep 20, 2010 | Singer Sewing Machines

1 Answer

Not completly threading or something


i was told this is a timing problem

Feb 26, 2010 | Simplicity Denim Star SW210

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