Juki MO654DE Serger Sewing Machine Review

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Juki MO645DE Serger Sewing Machine Rated
  • User Experience
  • Sewing Specs
  • Ease of Use
  • Craft Sewing Specs
  • Price

Sewing From Home Verdict

We like the Juki MO645DE Serger Sewing Machine for its many features and compact build.

Check current price on Amazon

Sergers are great machines for broadening your sewing ventures. However, they’re typically bulky in size and hefty in weight. If you lack a dedicated sewing room, you may find your options limited. Is it possible for a serger to be effective and versatile, while still compact?

We’re here to find out. Today, we’re evaluating the Juki MO645DE Serger Sewing Machine. It promises to be compact, easy to use, and provide equal or greater features to its larger cousins. But does it live up to this in practice?

You may find issues with its tension control, and the instruction manual is rather confusing. Before you decide if that’s a deal-breaker, let’s take a closer look at this Juki Serger Sewing Machine. With a few more details, it could be exactly what you need.

Juki MO645DE Serger Sewing Machine: The Details

The Look

The Juki MO645DE Serger Sewing Machine offers a basic design, with an all-white exterior, full-metal interior, and a metal thread stand. The control dials, located on the front, are mostly white, save for the color-coded threading system connected to each one.

In terms of size, this Juki is similar to a large textbook or a small microwave.


  • Weight: 15.4 lbs.
  • Dimensions: 10.6 x 13.6 x 11.6 inches.
  • Stitches: Five stitches.
  • Speed: 1500 spm.
  • Computerized/Mechanic: Mechanic.
  • Warranty: Five-year limited warranty.


  • Foot controller.
  • Lower knife.
  • 2/3 thread converter.
  • Nets.
  • Spool caps.
  • Tweezers.
  • Cleaning brush.
  • Needle threader.
  • Needles in needle box.
  • Small screwdriver.
  • Large screwdriver.
  • Oiler.
  • Accessory bag.
  • Dust cover.

Juki: The Company

Debuting in 1938 in Tokyo, Juki began creating sewing machines and other household items. This legacy continues today. Now, the company provides everything from sergers, to mechanical and computerized sewing machines, to quilting machines. As the years have passed, they’ve presented more cutting-edge, tech-savvy machines, but have never strayed far from their roots.

Juki MO654DE review

The Warranty

The warranty on all Juki sergers and sewing machines is five years for any mechanical problems, two years for electrical issues, and 90 days for any adjustments needed because of issues with the materials or workmanship.

This excludes needles, loopers, knife blades, bulbs, lamps, and belts.

The warranty can only be used by the original buyer, and will be voided if the machine is abused or mistreated in any way.


Knife System

This Juki Serger Sewing Machine offers a knife system with its own dedicated drive mechanism. As such, you receive a consistent and easy cut, no matter the fabric you choose.

This system consists of an upper and lower knife. The upper knife cuts through the fabric and can be removed for either safety or threading reasons. The lower knife can be easily adjusted to the width of your fabric. Both knives can be adjusted from project to project, so they’re customizable for your exact needs.

Juki serger


This Juki Serger Sewing Machine has five different stitch options to choose from.

  • The first is the two-thread overcast, which produces a stretchy, lightweight finish. It also serves as an excellent alternative to rolled hems and creates a quality edge finish on delicate fabrics.
  • The next is the two- and three-thread rolled hems, ideal for creating rolled hems on lightweight fabrics.
  • After this, a three-thread overlock is ideal for seaming, but is best used on seams that won’t experience heavy stress. This option can also be used to make blind hems.
  • The three-thread and four-thread flatlock stitches are decorative, mostly used on knits and sweatshirts.
  • Finally, there’s the four-thread overlock. This is the most commonly used serger stitch, perfect for seaming because of its strong and durable nature.


This Juki serger features an LED light over the needle area, so you can clearly view your work space at any time. Whether you’re sewing at night or prefer crafting in a dimly-lit corner, you can watch the stitches, precisely monitor the cutting blade, and maneuver the fabric as necessary. Nothing will escape your watch!

Looper Threading

The looper threading system ensures threading this machine is very easy. The looper disengages without too much fuss. You need only press the button to lower it, place the thread into the appropriate slots, and snap the looper back into place. It’s very convenient!

Best serger sewing machine

Presser Foot

The presser foot on this serger is rather unique, offering several functions combined into one. You can easily create an overlock stitch, as well as add tape, elastic, ribbon, or sequins, all without having to change the foot. The presser feet also quickly snap on and off, so the process is kept straightforward.

Rolled Hemming

This Juki serger offers an automatic rolled-hemming feature. This is controlled with a built-in fingertip switch control, so there’s no need to change the foot or plate. Just flip the switch! The machine handles the rest.

Safety Switch

When the swing cover on this machine is opened so you can thread the machine, the machine’s motor is disabled by the included safety switch. This will keep the machine from running while you’re trying to thread it, which at best would be annoying, and at worst could be dangerous or cause injury.

Color Coded

The thread paths, which can be challenging to understand on a serger sewing machine, are color coded on the Juki MO654DE. This will help everyone, but particularly beginners, understand how to thread the machine properly and without too much trouble.

Juki MO654DE Serger Sewing Machine

Sewing Speed

This Juki serger sewing machine can sew up to 1,500 stitches per minute! You can enjoy cruising quickly through your serging projects.

Built In Seam Guide

There’s a clearly marked seam allowance gauge on the guard cover of this serger sewing machine, which will help you create accurate seam allowances as you serge your project.

Tension Adjustment

The tension adjustment couldn’t be simpler – it’s just one rotation. Each dial also has color-coded and highlighted the numbers on what would be considered a normal thread tension on each dial. There is also a thread guide for each dial which will keep your thread where it belongs and also help maintain proper tension, no matter how quickly or slowly you’re running the serger.

Easy to Clean

This machine swings open for ease of cleaning, but the motor is completely encased. That means that you can use methods like a can of compressed air, which you normally cannot use, without worrying that you’ll blast bits of lint into the motor.

Juki MO654DE Serger Sewing Machine Review

The Positives

Easy to Set Up

Sergers are typically more difficult to set up than average sewing machines. However, this model has been designed with ease of use in mind. Threading the machine and choosing the right settings via the dials is an easy feat, thanks to the color-coded system on the front of the machine.

Since this machine doesn’t have a needle threader, you’ll need to do this manually. However, the looper system simplifies the more complicated elements of threading your machine. The instruction manual or (more likely) internet guides will walk you through the rest.

Juki MO654DE review

Easy to Use

Once the Juki is set up, you’re ready to begin new projects!

At this stage, you’ll adjust the tension to fit whatever you’re making, choose the correct stitch, pick a stitch length, and decide between the 2-3 thread converter options.

Once you’ve settled on all your choices, raise the presser foot, slide your fabric underneath, adjust the knife system for your fabric’s size, and lower the presser foot onto your material. Then, just press down on the foot control and guide the fabric through the machine. It’s that easy!


From the rolled hemming to the different stitches to multi-function presser foot, there’s no question – this little machine offers a great number of features. Whether you’re making clothes, quilts, or even lingerie, this serger has the tools and abilities needed to tackle your next project.

From waxed canvas to spandex, this machine has tackled all manner of fabrics, adding to its versatility.


Most sergers take up an entire sewing table, but that’s not the case with the Juki Serger Sewing Machine. At only 10.6 x 13.6 x 11.6 inches, it can easily fit onto a small table or in a corner. This compact build also makes it easy to store away. At only 15 lbs., you can pack it up for traveling, stash it on a shelf, or tuck it under a desk without issue.

And just because it’s a compact machine does not mean it isn’t sturdy. Even while serging at high speeds, up to the listed 1,500 stitches per minute, it won’t walk across your craft table or sewing table. It’s small and fairly light, but strong enough to handle any serging job you can throw at it.

The Negatives

Tension Issues

Despite its metal build and impressive range of features, there is a downside to the Juki’s compact build. The tension is rather finicky. You may need to adjust it several times throughout a project and double-check on it now and then. This may be a result of the small components and the lack of room they have to work.

So long as you’re willing to exercise patience and stay vigilant, this downside may be outweighed by the other positive traits.

Vague Instructions

Sadly, the instruction manual is rather vague. While it does cover a great deal of information, it lacks step-by-step guides. If you’re a complete beginner, it may be confusing and annoying. Luckily, the machine is designed intuitively and there are many online video guides to walk you through the process.

The print size is also very small in the printed manual. For users with poor or limited eyesight, this may be frustrating, but the printed manual can be taken to a print shop and enlarged. But like we mentioned, the videos online might be the easiest way to watch and learn how to use this machine.

Overall Verdict

After going over all the positives and negatives, we do recommend the Juki MO645DE Serger Sewing Machine. It has many different features, a compact build, and offers most of what large, expensive machines do. While the serger’s tension demands a careful eye, and you’ll need internet guides for the set-up, the positive experiences far outweigh the negatives here.

Where to Buy the Juki MO645DE Serger Sewing Machine

The Juki MO645DE Serger Sewing Machine is available from a few online retailers.

Sew Vac Direct ($399)

Sears ($552.37)

And of course, it’s available on Amazon.

Juki MO645DE

That’s our review of the Juki MO645DE Serger Sewing Machine. Are you going to try it out?


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