Threading a Janome sewing machine takes about two minutes once you know where each part goes
Threading a Janome sewing machine follows the same basic path on nearly every model: thread the spool, guide the thread down through tension discs, through the take-up lever, and finally through the needle. The exact location of these parts varies slightly between models, but the sequence is always the same. Most Janome machines have a threading diagram printed on the machine itself or in the manual — follow that diagram for your specific model, because some machines have an extra guide or a different needle position.
The most common mistake is skipping the tension discs, which sit between the spool and the take-up lever. If your thread bypasses them, your stitches will be loose and uneven no matter how you adjust the tension dial. The second mistake is threading with the presser foot down — the tension discs only open when the presser foot is up, so threading with it down traps the thread outside the discs.
Key Takeaways
- Raise the presser foot before threading; the tension discs only open when the foot is up.
- Follow the threading path printed on your specific Janome model, because the location of guides varies between machines.
- The take-up lever (the small arm that moves up and down) must be threaded before the needle.
- Leave at least six inches of thread hanging below the needle before you start sewing.
- If stitches are loose or uneven after threading, rethread the entire machine rather than adjusting tension first.
Prepare the machine and spool
Start by raising the presser foot using the lever at the back of the machine. This opens the tension discs so thread can pass between them. If the presser foot is down, the discs stay closed and the thread will not sit in them properly.
Place your spool of thread on the spool pin at the top of the machine. Most Janome machines have a horizontal spool pin on the right side of the top. Slide the spool onto the pin and find it with the spool cap — a small disc that screws or clips onto the end of the pin. The thread should unwind smoothly without catching. If you are using a spool that is wider than the pin, use a spool stand (a separate vertical holder) instead, which sits next to the machine.
Guide the thread down to the tension discs
Pull the thread from the spool and guide it through the first thread guide — a small hook or loop near the top of the machine, usually to the left of the spool. This prevents the thread from tangling around the spool pin. Check your machine's threading diagram for the exact location; some models have this guide on the right side instead.
Continue pulling the thread down and forward toward the tension discs. The tension discs are two metal or ceramic plates that sit vertically, one in front of the other. The thread must pass between these plates. You will feel slight resistance as the thread slides between them — this is normal and correct. If the thread does not go between the plates, it will not have proper tension and your stitches will be loose.
Thread the take-up lever and needle
After passing through the tension discs, guide the thread up and to the left to the take-up lever, a small metal arm that moves up and down as you sew. The thread must pass through the hole or loop at the end of this lever. This is a critical step — if you skip it, your stitches will be uneven.
From the take-up lever, guide the thread down and forward through any remaining guides on the machine. Most Janome machines have one or two more guides between the take-up lever and the needle. Follow the diagram on your machine to find them.
Finally, thread the needle from front to back. Hold the thread taut with one hand and guide it through the needle eye with the other. The needle should be at its highest position (use the hand wheel to raise it if needed). Leave at least six inches of thread hanging below the needle — you will need this length to pull up the bobbin thread in the next step.
Pull up the bobbin thread
Hold the top thread loosely with your left hand and turn the hand wheel toward you (clockwise) one full rotation. This lowers and raises the needle, which causes the needle thread to hook the bobbin thread and pull it up through the needle plate.
After one rotation, you should see a loop of bobbin thread coming up through the hole in the needle plate. Use a seam ripper or small hook to pull this loop up so you have both threads hanging below the presser foot. You now have both the top thread and bobbin thread ready, and you can begin sewing.
Common threading mistakes and how to fix them
If your stitches are loose on the top (the bobbin thread shows on the top of the fabric), the top thread is not threaded correctly. The most common cause is skipping the tension discs or threading with the presser foot down. Rethread the entire machine from the beginning, making sure the presser foot is up and the thread passes between the tension discs.
If your stitches are loose on the bottom (the top thread shows on the bottom of the fabric), the bobbin is either empty, wound incorrectly, or inserted backward. Check the bobbin first before rethreading the top. If the bobbin is full and inserted correctly, the problem is usually a bent needle — replace it and rethread.
If the thread keeps breaking while you sew, check for a bent or dull needle, a thread that is too thick for the needle size, or lint buildup in the tension discs. Clean the discs with a small brush and replace the needle. If you are using heavy thread, you may need a larger needle size.
Threading different Janome models
Most Janome machines follow the same threading path, but some models have slight variations. Computerized Janome machines (like the Skyline or Memory Craft series) have the same basic threading as mechanical models, but the needle threader button (if your model has one) can help guide the thread through the needle eye. To use it, lower the needle to its highest position, press the threader button, and the small hook will guide the thread through the needle. Release the button and pull the thread to the back.
Janome sergers (overlock machines) thread differently than regular sewing machines and have their own threading diagram. Do not attempt to thread a serger using regular sewing machine instructions. Check your serger manual for the correct path.
Frequently Asked Questions
What if my Janome machine has an automatic needle threader?
Thread the machine up to the needle as normal, then lower the needle to its highest position. Press the small threader button on the side of the needle area. A tiny hook will move forward and catch the thread, pulling it through the needle eye. Release the button and pull the thread to the back. If the threader does not work, the hook may be bent — take the machine to a repair shop rather than forcing it.
Can I thread the machine with the presser foot down?
No. The tension discs only open when the presser foot is up. If you thread with the foot down, the thread will sit outside the discs and your stitches will be loose and uneven. Always raise the presser foot before threading.
How do I know if the thread is between the tension discs?
You should feel slight resistance as you pull the thread down through the discs. If the thread slides through with no resistance at all, it is probably not between the discs. Raise the presser foot and try again, pulling the thread more deliberately toward the center of the machine.
What size needle should I use for different thread weights?
Use a size 70/10 or 80/12 needle for lightweight thread, a 90/14 for standard cotton thread, and a 100/16 or 110/18 for heavy thread or topstitching. The needle size is printed on the package. Using a needle that is too small for your thread causes breakage and skipped stitches.
Do I need to rethread if I change the thread color?
You do not have to rethread completely, but it is a good idea. At minimum, raise the presser foot (to open the tension discs), pull out the old thread, and thread the new one through. This ensures the new thread sits properly in the tension discs.