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Yard Machines 12A-AOM5700 Lawn Mower Review

In the world of lawn mowers, Yard Machines is one of the companies that manufactures amazing lawn mowers. We are going to cover one of their model today, namely the 12A-A0M5700, a 159cc 21-inch self-propelled mower. Here is a quick recap on what we think of this mower.

Our Rating
Yard Machines 12A-AOM5700 review
  • 21 inch deck
  • Value for money
  • Powerful Engine
  • Mulching Ability

Yard Machines Lawn Mower Reviews:- Model 12A-A0M5700

yard machine lawn mower reviews

The lawnmower is reasonably priced without compromising on features and quality. Most of the cost is for the powerful engine that has been supplied by a company that is trusted around the world. The 159cc OHV engine powered by Briggs and Stratton is very durable and reliable.

This Yard Machines lawn mower is perfectly suitable for yards that are either small or medium sized. Furthermore, the lawn mower allows the user to adjust the height with two adjustment levers, so you can get the result just the way you like it.

Key Features

1) Powerful Engine

If you were having second thoughts about the lawn mower, the biggest convincing factor is the amazingly powerful engine manufactured by Briggs and Stratton. Unlike most engines used in electric mowers, Briggs and Stratton is one of the best companies in terms of engine manufacturing.

Its engines has a reputation of being extremely reliable, so if its engine is being used in the Yard Machines 159cc, you can rest assure that the chances of the lawn mower dying anytime soon are pretty much nonexistent. This feature is also the main selling point of this lawn mower.

2) Mulching

During the mulching mode, the side discharge is not open, and the mower would repeatedly cut the clippings until they are very small, which can easily settle in the lawn and decompose.

The advantage of this mode is that due to the grass settling back in the lawn and decomposing, the yard does not need as much fertilizer compared to if you were using an ordinary lawn mower without the mulching mode.

One thing to remember is that when using this mode, do not cut more than one-third of the grass length and also avoid cutting wet grass.

Also, make sure you are not going too fast with the mower.

This is because if you are not careful, the clippings would spread around in the yard instead of decomposing and you will have to do more works cleaning up your lawn.

3) Bagging

The bagging mode is pretty useful for a lot of people. In this mode, instead of spreading the clippings and leaving it to decompose, the clippings are collected in a bag or removable catcher.

What people like the most about this mode is they find that the lawn seems extremely clean and tidy because the lawn mower essentially works both as a cutter and as a vacuum. This means that it can suck in all the unwanted leaves lying around as well as the sand and debris.

However, the catcher needs to be cleaned frequently in order to ensure that the lawn mower performs at its best every time.

4) Side Discharge

In the side discharge mode, the mower has the capability of discharging all the clipping on one side of the mower. This mode is preferred if the grass is very tall as it keeps the mower unclogged and it can quickly remove the clippings from the deck.

Unlike the bagging and mulch mode though, the clippings from this mode are slightly bigger and more visible.

5) Smooth Turning Wheels and Adjustment Levers

The 8” by 8” smooth turning wheel might be one of the best features of the lawnmower. Most people find it difficult to control a lawn mower because of the unavailability of rear wheels that can help them navigate the machine on hills or obstacle-ridden paths.

However, with this lawn mower, you can easily move around and make sharp turns because of the high wheels that make it easier to push this mower around.

The lawnmower also has adjustment levers that can adjust the height of the machine like how the users prefer.

  • 1 forward speed
  • Front drive wheels
  • The deck size is around 21 inches
  • The engine is manufactured by Briggs and Stratton
  • The size of the engine is 159cc
  • The model can mulch and bag
  • The lawn mower has two years’ warranty

The Pros vs The Cons


  • Affordable.
  • Powerful engine by Briggs and Stratton.
  • The high wheel helps the Yard Machines lawn mower to mow even the most difficult and uneven terrains and hills.
  • Crowned as the best lawn mowers for small or a medium-sized yard.
  • Easy to start.
  • The gas tank is large.
  • No choke or prime.
  • Has adjustable front and rear wheels.


  • A bit noisy.
  • Sometimes, the chute guard does not stay on properly.
  • A few complained that the mower has sucked up the discharge tube a few times.

The Convenience of Self-Propelled Lawn Mowers

In modern days, this type of lawn mowers have substantially become very popular. You can find other models covered here. So, what is self-propelled mower?

As the name suggests, these lawn mowers do not need to be pushed by the user like a conventional push lawn mower but they can move by themselves.

Depending on the size of your yard, these lawn mower can take away the fatigue of moving the mower especially on difficult terrains. All the user has to do is walk beside the mower to control the path of your little helper during your gardening session.

It also means that all the extra strain on the user due to pushing heavy mowers are generally minimized.

Final Verdict

Yard Machines Self-propelled Lawn Mower

It is undeniable that the Yard Machines 159cc 21-Inch Self-Propelled Lawn Mower is one of the best products manufactured by the company.

With the 159cc OHV Briggs and Stratton engine and a 21-inch deck, most reviews have been very positive and customers simply love it for its durability and strength.

We would give this lawn mower a 4.3 out of 5 rating for its excellent performance and durability.

If you are looking for a lawn mower that is affordable and does not compromise on quality and features, we would strongly recommend this to you. 

Our Rating

What we Liked:

  • 21 inch deck
  • Value for money
  • Powerful Engine

What we Disliked:

  • A bit noisy

    Jeremy Delores

    Jeremy is here to help you get the right tools and equipment for your yard and garden. Being obsessed with them for almost a decade, he knows how important quality and reliability is when using them. For this reason, he will focus on creating and sharing content that not only cover the latest information and trends but also his insights on the best products that will suit your needs and requirements.