How to thread the Juki MO644D Serger 

Here in 2024 - this tutorial is amazing and so much more detailed than the official ❤

As I probably said. This is more comprehensive that the official, thx!!!!!

I had thise juki in a corner for many years ,its not the easiest to thread...til i found your video . Thank you...great video!

Here in 2022 to drop another line of THANKS to this list! This was a great tutorial. I'm a beginner with a serger and this was the best video I found.

This is the best video for threading the Juki!!! Excellent step-by-step instructions!

It embarrasses me to admit that I have to come back to this tutorial every single time I need to thread my serger but I’m so incredibly thankful for you taking the time to provide such helpful instructions. Thank you, thank you! You make it so easy to follow along with you.

Thank you thank you for this video! I watch it nearly every time I thread my Juki...I don't know what I'd do without you!! Big Hugs!! Cindy

Just got a new Juki Serger. I have a lot of patience to learn a new machine. But, this threading guide printed on the loop cover was confusing as was the manual. Thank you for posting this. You truly showed how to thread this machine.

This is a wonderful video, saved me a lot of frustration. She does a step by step, making it simple! Thank you

I have been living in fear of having to re-thread my Juki, it was new and the testers at the factory thread it for the first time. Today I had to re-thread, and I am so happy I found this video - it was a lifesaver. Thanks for great work in making this clear. The manual can't be read even with a magnifying glass and a flashlight!

I thought I was going to have to sell my Juki serger, simply because of the threading..I even thought about hiring a person to help me thread it..I have not actually followed along, yet, as my serger is in another room. BUT, I can see this video will most probably be all that I need. Thank you so very much for taking the time to make this video for us..I don't suppose an average person could thread it without this kind of help! Blessings to you

I bought a used Juki Serger and couldn’t figure out the instructions. Thank you so much for your video! She’s now threaded and ready to go!

Excellent tutorial. I was so lost. Couldn't figure out what i was doing wrong. Then i found this video and voile! It's now threaded correctly! Thank you!!! I refer back to this video often.

I’m new to using a serger. This video saved me…out of all I watched, this was the ONLY one that showed the red thread going “under” and catching in the lower loop before going back and threading it - wow, game changer! Now to figure out adjusting the stitch.

Thank you for your helpful tutorial. I am proof that you can teach old dogs new tricks. I got my first serger 40 years ago (Juki MO 64 ) and it was so easy to use and finally it gave up after many years of heavy use. I got a MO- 644D in 2004 and mistakenly thought I knew how to thread it even though I had the manual. It has not been used. Now 16 years later, I came across your tutorial. WOW! Thank you sooo much!

I have fought for years how to thread my Juki. By watching this video I have it completed within 14 minutes and it's done right the first time. A HUGE time saver for me. Thank you for putting this out there!

I just got my Juki today and I was ready to cry when trying to thread the 2nd thread... I found your video and it was so quick and simple to do because I followed your video... Thank you Thank you Thank you

I whole-heartedly agree with all these positive comments. I just got my serger & going through the instruction booklet it comes with, opening all the compartments, I was freaking out a little. I’m an engineer by trade and was still intimidated! Thank you for your calm, easy explanation. You’re a threading superhero in my book. 😍 I only wish I could post pics of my very first gorgeous edge. 💪

Excellent video on threading the Jiki MO644D Serger! After spending several hours trying to configure the instructions from the booklet I would like to say thank you for rescuing me from throwing this machine into my scrap pile! I am in searcher heaven now !

Thank you so much you just saved me from returning my surger.

This video I’m sure helped a lot of serger users in threading their machines. One of the most important thing to remember is why youre threading the upper looper 1st. It is because the lower looper thread goes over the upper looper thread. The diagram on the facing/front door shows that as well. The 1st front facing guide at the top of the machine is also an open guide and doesn’t need to be threaded, just slipped into place twice. If anyone bought their Juki brand new, there is a dvd video that came with it and several manuals as well. I know this was made about 4 years ago, so maybe what I’m saying is moot. But someone once said, or maybe several times, that the most important thing we can do when buying a sewing machine or even a sergers is to read the manuals that come with it. I ordered my Juki online and it came with a bunch of other feet as well as the dvd and all the tools you need for your serger..play with your serger, learn to use the other attachments, and remember to test sample each time you make adjustments before sewing your project. And one last thing, it mentioned in the video to thread your serger over and over again until it becomes second nature to threading it.

The best video I have found for threading the Juki serger. Thank you. It has been a long search.

I attended a sewing class at a Senior Facility, they had a Juki Serger and nobody knew how to thread it. I found your channel/video on how to thread the serger. Now everybody wants to surge their garment. 😁😁😁😁Thank you so much for this wonderful video, the instruction was very clear.

Thank you so much for making this video! Whenever I searched up how to thread the 644D, all the videos always show a different machine, which didn't include the lower looper part that you did!

Please please make other videos for this serger! I just got mine and i am so nervous...

Very good step by step video. I might add, you don't need to put the thread through the first 2 holes at the top. They will click in and save you a lot of time. :D

srsly- your'e the best- EVERY time I pull my serger out- i watch your video to re-familiarize myself-- you have a very reassuring "you can do this" way of explaining it - THANK YOU again :-)

Bless you, Bless you many times over. I have spent a good share of the day trying to thread my Juki 644d serger with very little success!! Then I found your video! I finally threaded my serger correctly following your example especially the bottom looper-that’s what has stumped me all morning long. Thank you SOOO much. It sews beautifully. Thank you again and again!

Thank you from the bottom of my heart for this video. Your calm voice, with the positive and pleasant instructions made me feel as if I could do this & I did. Of course now I need to move on to the next step and that is actually sewing with it. I can not tell you how much I appreciate being able to see each and every step. You have the 1st step, threading, fairly easy for this long time seamstress, to do! Take care, you sound super busy with your little ones

Your video was a huge help to me. I read the manual, looked at the diagram & the machine & KNEW I needed more help than the manual & its black & white picture could provide. I stumbled on your video & am do thankful that I did. I've only had my serger a couple of weeks & am still watching your video every time I change my thread. It's getting much easier but I still need the assurance of hearing you tell me what to do. Thank you for a great video!

Thankyou for making this video so much help! I can't wait to get my new serger

I AM GRATEFUL FOR THIS VIDEO! AMAZING JOB & EASY TO FOLLOW YOUR INSTRUCTIONS AND THREAD MY MACHINE!

THANK YOU!!! The one Juki has is for a different model and I had no idea the red thread had another area to open!! You have saved me from crying and giving up!!

This was so helpful, thank you for sharing!! This was especially helpful for the step for passing the thread through one side of the serger to the other for the red thread. Very grateful!

OUTSTANDING video tutorial of threading the Juki MO644D! I got this serger today on Amazon and right out of the box I set it up and followed Sew Fanny's instruction and threaded it correctly on the very first try. This woman's video made something that looked incredibly confusing so easy! Good job and I really appreciate the time you put into making this, you have no idea. I'd never seen a serger little lone operated one before. Thank you so much!

THANK YOU for this video! I've been threading my wrong for 4 years now! Didn't know about the threader tool and didn't put red string in from back. No wonder it never works well. will now. Thanks again!

Beautifully filmed and explained...thank you for the refresher

Excellent camera close ups and instruction. Thank you.

This is the best threading video. Bless you for doing this! I don’t know what I would do if you hadn’t taken the time to make this video and with such clarity, patience and detail. The close ups are so helpful!!

Thank you so much you’re a lifesaver I could not figure this out great close-ups

Reading some of the comments about the pressure foot. I removed the pressure foot, pulled my threads to the back side then when I was done I replaced it. Made it so much easier to see the threads and I had no problems when I went back to sewing.

THANK YOU! This is the best tutorial on threading the Juki that I’ve ever seen! You’re a very good instructor.

Excellent video excellent explanation. Thank you so much for this. I will be getting my Juki Tuesday and taking my class that day. Watching this helps me see what to do. I am sure when I get my Juki I will be watching this over and over again. THANKS!

This video was so helpful. Would not have done it right without your instruction. I have the model 654DE which when threading the #2 looper is made easier by a lever that flips the thread guides into view. No more passing the thread through to the other side. I wish they made it easier to thread those tiny holes in the needles, gets harder the older you get.

GREAT JOB!!! Thank you for making this so so clear! This is the same process as for the Juki MO 634D. :)🤗

Fantastic teacher! Great use of camera! Thanks so much. Enjoyed my serger today because of you!

Perfect instruction with patience - thank you! Great visuals without blocking the view with your hands. I'm sure that was challenging at times! For the first time I felt accomplished, that I had finally conquered threading this little guy! My trial proved otherwise, tho. I will try again with your step by step video and my instruction manual, both by my sides...

Thank you soooo much for the fabulous detailed video! This is the best video I have found for showing step by step instructions on how to thread the Juki serger. All the other videos I watched they either went to fast, was not close enough to see, their hands were in the way, & you just couldn't get a clear picture of how to thread it. Thank you for your patience in showing up close each individual step in threading the machine. I was about to give up & pack mine away until I found your video. Again, Thank you! You are an angel.

Big Mahalo (Thank you)! A friend gave me an older model and I had to thread it from scratch. I got everything threaded but kept having trouble with the "red" thread, lower looper! That lower looper is tricky and was a bit frustrating. The instruction manual didn't help. Watched your video and it now works perfectly!!! You made my day happy happy joy joy!!!

Thank you for this video. It was very helpful and easy to follow.

Great pace. Very clear instructions. Used it for a different, much older model but translated well. Thank you.

Just sitting here waiting for my serger to arrive and decided to look for videos. Yours was the first one I saw and no need for another. I’ve subscribed. Your tutorial is by far top notch. Thank you for taking the time to do this and for being so super patient and soft spoken. Happy New Year!🌻👍🏼

Thanks for the video. Not a lot on this particular model, so thanks.

Just received my serger and made 2 mistakes that made the threading difficult and wrong and the stitch uneven. I just watched the video and awesome.thank you!

Thank you. This helps so much. I have a cat that likes to eat thread and has messed the serger a number of times.

Very clear demonstration. Thank you.

awesome I'm new to this as well but with your video I was able to thread my machine for the first time thank you

My serger is on its way, and I’ve had so much anxiety about threading it (I really wanted one that would thread itself but that’s just not reasonable for me), so thank you for this video, for going slowly and showing all the parts!

You have done an amazing job with this video!

Thank you so much for this video! This is my first serger and I feel much more confident after watching it. Great job!

Brilliant!!! I opened the box upon receipt and was immediately totally intimidated! So different from my ( noisy jumpy) Brother 1040d. The directions in the manual are pretty horrible and incomplete, and I thought I'd never figure it out. Then I watched your video, threading as I watched. You make it so easy, I never thought it would work the first time. I was wrong! It chained beautifully the first time :) So thankful for this video! I hope you will post many more - I'd love to learn all the functions of this oh so quiet machine. Thank you, thank you!

Thank you! I was so stuck and I have like 8 more prom gowns to make! You e saved the day with this video.

Very very helpful thank you. Threaded my serger first and multiple times after with this help :)

This is the best tutorial. So clear and saves me every time! Thank you!

you are great. Thanks for sharing so detail, I bought this machine today and I can make it with your vedio tonight

Thank you so much! I just used my new to me Juki 644 for the first time - and your threading instructions helped so much!

Thank you! I could actually see what to do!!

Excellent work! I sure wish I had had this to guide me when I got my serger ten years ago! It would have saved me a lot of tears, ripping my hair out, and throwing things. Juki should link to this video on their site. You've done us all a great service!

Thank you so much for posting this. What a huge help!

Thank you for a very clear and helpful video - done just at the right speed

Thank you for making this video. It was very helpful!

OMG, thank you! I just threaded my machine for the first time. Never used one before. Going to see if you have a next video walking me through using it. ^_^

I just want to tell you thank you from the bottom of my heart for making this video. It is so easy to follow. It seems all the videos are for newer or fancier machines. You have the only videos for this model. I could not thread my machine without watching your instructions. You are an angel!! Im new to sewing and would like to request videos on how to use different pressure feet. I can’t seem to find any compatible videos for this model. I would love a universal blind hem pressure foot but I don’t think they make one for this machine. Do you have any suggestions? Thank you!

Thankyou Thankyou! Your video saved the day!

Thank you, thanks to you I now I threaded my new serger right, but I must have messed up when I changed the tension and broke both my needles!!:( Now I have to try to find them in the machine and re-thread... Your video was super helpful!!

Well done!

Thank you so much for doing this. Now I'm not in a full-blown panic mode when my threads out.

Очень хорошая инструкция по заправке нитей в Juki MO-644D. Мне пригодилась.

great video of the juki mo644d threading. thank you.

Great job explaining

Thank you thank you thank you❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

Thank you so so much. At last I tackled it🎉🎉🎉

Very helpful indeed. Thank You! :)

Thank you, very clear and precise instructions. I can't wait to try out on my new machine :)

Thank You sooooooo much!!It helped me so much with that tricky lower looper!!!

Thanks very helpful ❤️

Thanks for making this video.

Thank you thank you thank you 😁💗

Thank you very much for this video!!!

Thank you so much Jesus love u , lol wondering why mine was not working ? Lol Your instructions are very very helpful. My threading was a mess lol

Omg thank you so much for this video really helped me 💜

THANK YOU!

Thank you so much, you are amazing!

Great video, thanks!

Thank you so much for this video, very helpful.

Thank you for this excellent video, it reassured the manual's process so well. My machine is threaded, yay! I appreciate your careful display for each thread. ~Two Thumbs Up~

Thank you so much for sharing!!!❤ Very helpful!!

Thank you very much - it was most helpful!!! (-:

Thank you so much for this video!!!

Thank you for a great video.