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Won't sew I get a couple stitches but the top thread bunches up bad on the bottom of the material. It doesn't appear the bobbin thread is even coming out to form a stitch.

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Re: Won't sew

You have tread in the bottom of it. and needs a cleaning. check the tension, most set on 3

Posted on Dec 16, 2007

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I have a problem with sewing, the stitches on the top are tight and the bottom stitches look fine, when I sew the material is bunched up.

The bobbin thread is too tight it's either getting caught on something or tension of bobbin needs adjusted

Mar 05, 2015 | Sewing Machines

1 Answer

Sewing machine not working in reverse

try a new needle
try a different thread top and bobbin
try adjusting the top thread tension one number or letter at a time
higher sewing on a scrap piece of paper till the stitches look
make sure the top thread does not come off the thread take up lever

Jan 11, 2013 | Sewing Machines

2 Answers

The bottom stitching looks like a line and not stitches the top stitching is fine

whether its bias or straight does not matter to machine. loosen the bobbin tension and put more tension on take up spring by inserting a screwdriver in the slot of the top thread tensioner. turn to right.

Dec 13, 2012 | Juki DDL8300N Sewing Machine

1 Answer

Thread bunching and bobbin winder quit

This sounds a lot like you've forgotten to lower the presser foot. (this leaves the tension discs open and causes serious issues below the material.) Double check that and if still having issues post again.

Nov 03, 2012 | Brother SE-270D Computerized Sewing...

1 Answer

Top thread bunches

try changing the needle--use a needle according to the fabric
being sewed
if thin fabric is being sewed try using a stablizer
rethread the machine top and bobbin--use every thread guide
make sure the bobbin is inserted correctly and turned correctly
in the bobbin case
also try adjusting the top thread tension just a little

Oct 23, 2012 | Singer 2950 Mechanical Sewing Machine

2 Answers

How do you adjust the bobbin


Set the tension on the sewing machine for the weight of the material you want to sew. The tension setting shows in the stitch on the material. Use the chart on the machine that matches types of stitches with suggested material tensions. An example of this is, the stitch to sew jean material is different than the stitch to sew silk.

Take the bobbin and wind the thread around it. Make sure the bobbin is empty and don't fill it too full of thread. A bobbin filled too full won't stay tightly spun.

Thread the string evenly on the bobbin. Move the thread back and forth evenly and in layers that are level. Many Singer sewing machines have a bobbin winder on the top of the sewing machine, and the consistency of how it threads can save you frustration later.

Find the hole on the bobbin that is located near the inside spindle of the bobbin. Take the thread sitting on the sewing machines spool and insert the thread in the hole from inside the bobbin to the outside. Set the threaded bobbin on the spool designated for spinning on the top of the sewing machine for some Singers.

Turn the side drive wheel slowly until the threaded bobbin has a layer or two of thread on it. Push down on the drive peddle and fill the bobbin, but don't thread it to the very edge. If the bobbin is too full the thread will release erratically. Cut the thread from the spool.

Drop the bobbin into the bobbin case under the area where the needle sews the material. Close the case and turn by hand the side wheel drive until the bobbin threads into the sewing machine. You can tell when the bobbin is threaded by the tiny piece of thread that juts out of the bobbin case where the needle goes up and down.

Grab the thread with your fingers and pull it out approximately 4 inches. Your bobbin is now spun and threaded.

Aug 02, 2011 | Singer 1120 Mechanical Sewing Machine

1 Answer

Hemming Levi's for husband. Using thick "jean" thread. Used 16 needle. Top stitch is perfect, bottom thread is anything but straight. I've re-threaded, cleaned the "hook", changed to a 14 needle. I...

Hi! Sounds like you're doing everything right to me, so let's see.

By not getting a straight stitch on the bottom, do you mean that the bobbin thread is loopy? If so, then most likely you have to reset the tension. Get a scrap of jeans material and practice on would be great if you could use different color threads on top and in the bobbin, but that might not be practical if you don't have the jeans thread in different colors already.

You'll be adjusting the top tension, because even tho the top stitch looks perfect, it may not be tight enough to pull the bobbin thread up into the fabric where it belongs.

Sew a couple of inches on your scrap, then stop and check the bobbin thread. If it's loopy, you can also see the top thread on the underside. (Which is why using two colors is helpful.) With the pressure foot down, tightened the top tension just a bit. Sew a few more inches and check again. Keep on sewing, checking, and adjusting until you can't see any (or almost any) top threads on the bottom or bobbin threads on top.

Here are a couple of other ideas to check:

1. Make sure your bobbin is inserted correctly. If I happen to put one in backwards by mistake, the bobbin will make a lot of clanking noises.

2. Using your flywheel, lower the needle all the way through the stitch-making process to see if it's hitting anything along the way.

3. Oil your machine.

4. Make sure all the screws etc on your throat plate (also called needle plate) are tight. (I've had mine get loose and that will definitely throw a knock into the works!)

Check out these ideas and let me know if anything works, or if the problem is still there, ok?

Happy Sewing!


Feb 18, 2010 | Singer 7466 Mechanical Sewing Machine

1 Answer

Sewing a bunch of thread from the bottom, this stops the machine from actually sewing

Yes, it does. There are a couple of reasons the bobbin thread could be bunching up on the underside of the fabric. It could simply be that the machine needs cleaning. Take the bobbin assembly out, brush all the old lint out as best you can, reoil the machine once it's all clean, and make sure there aren't any little bits of thread caught in the bobbin assembly. Rethread the machine (carefully) and change the needle. This solves the problem usually--especially if the machine was sewing along fine and the problem develops suddenly. '
The other thing to check is your tension. It could be that the top tension is too loose. But different color thread in the top and in the bobbin, stitch a few inches (be sure to held the top and bobbin thread ends behind your needle as you start to stitch) and check. WIth the pressure foot down, adjust the tension, and stitch again. Keep stitching, checking, and adjusting until you see little if any bobbin thread on the top or top thread on the bobbin.
Another thing to reminder: use the appropriate thread and needle for the fabric you're sewing.
Let me know if this works, ok?


Jan 31, 2010 | Elna Sewing Machines

1 Answer


Hi Lou! This sounds like a tension problem--the tension on the top thread is too loose. Try using different color threads on the top and bobbin, then carefully rethread everything. Stitch a couple of inches and check the underside. If the top stitches look fine and the bottom ones are loose and loopy, and with the pressure foot down, tighten the tension. Move the knob or dial (whichever you have) just a little bit. Sew a couple of inches more, and recheck. Continue to sew and recheck, gradually tightening the tension, until you see little if any bobbin thread on the top or top thread on the underside of the fabric.

Let me know if this helps, ok?


Jan 27, 2010 | Singer Sewing Machines

1 Answer

Thread bunchingup on bottom of material on singer

Here are some solutions to try.

* Re-thread your machine
It may be threaded incorrectly.

* Raise your feed dogs If your machine has this feature.

* When you start to sew a seam, hold the upper and bobbin thread tails back and out of the way as you sew your first couple of stitches. This will keep them from getting caught in your machine.

I hope this helps.

Dec 28, 2009 | Sewing Machines

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