Yard Machines 140cc OHV Self Propelled Gas Lawn Mower, 21-Inch

Last updated date: June 5, 2020

DWYM Score

8.5

Yard Machines 140cc OHV Self Propelled Gas Lawn Mower, 21-Inch

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We looked at the top Self Propelled Lawn Mowers and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Self Propelled Lawn Mower you should buy.

Editor's Note December 1, 2020:
Checkout The Best Self-Propelled Lawn Mower for a detailed review of all the top self propelled lawn mowers.

Overall Take


In our analysis of 114 expert reviews, the Yard Machines Yard Machines 140cc OHV Self Propelled Gas Lawn Mower, 21-Inch placed 13th when we looked at the top 20 products in the category. For the full ranking, see below.

From The Manufacturer

Perfect your lawn with Yard Machines 140cc 21" 2-in-1 FWD Lawn Mower. Powered by a 140cc engine with a recoil start and autochoke, this front-wheel drive lawn mower is great for level terrain and allows you tip up or turn the mower in order to get the perfect angle. It is equipped with a dual lever that allows you to adjust the trimmings between 6 different heights. The Self-Propelled Bottom Bail allows you to accelerate or slow down at your choosing. It is equipped with both side discharge and mulching capabilities. It comes with a 21-inch cutting deck that allows you to mow wider areas of grass with fewer passes- perfect for small- to medium-sized yards. The 8 inch wheels are equipped with bar treading that allows you to effortlessly drive through hard or loose soil. Backed by a 2 year warranty.

Expert Reviews

Expert Summarized Score

8.7
5 expert reviews

User Summarized Score

8.2
752 user reviews

What experts liked

Multiple height adjustments allow you to get the right lawn trimming on the first pass. Additionally, there are side discharge chambers on both sides, and the mulching capabilities allows the grass to be scattered in your lawn without needing to rake it afterward.
- ReviewThis
This model comes with six adjustable height settings for your ideal cut, but you’ll also appreciate the fact that you can choose between side discharge and mulching.
- Garden Beast
With the durable 7-inch front and 11-inch rear wheels, the mower can easily get turned on the rough or hilly lawn. So you can mow the lawn with less effort.
- Mowers Boy
The dual-lever mechanism of the lawn mower helps to adjust and cut height to different levels to accommodate both tall and short grass varieties.
- Lawn Mowers
This lawnmower has a lever that makes it easy to adjust the cutting height to 6 different heights which is ideal if you want to cut your grass to different heights at different times of the growing season.
- Green Thumb Planet

What experts didn't like

The fuel tank isn't very large making this mower not ideal for large lawns.
- ReviewThis
Doesn’t come with bagging feature. The engine doesn’t seem as powerful as described.
- Garden Beast
The quality of the lawn mower needs improvement.
- Lawn Mowers

Overall Product Rankings

An Overview On Self Propelled Lawn Mowers

A well-kept lawn is a thing of beauty. Not only is it nice to look at, having perfectly mowed grass makes it more enjoyable to have fun out in your yard. However, if you have a sizable grassy area or just don’t enjoy sweating while pushing a manual lawn mower along, then a self-propelled lawn mower may be a good choice for you.

Walk-behind push-mowers are powered by your strength, where you move them by pushing them over the grass you want you cut. A self-propelled lawn mower takes most of the manual labor out of mowing your yard because it is powered by a transmission. Typically, this kind of lawn mower runs on gas, though there are some that are cordless electric models as well. You can find self-propelled lawn mowers that come with variable speeds, which the operator controls in order to move the mower forward. For most people, a single-speed mower will do the trick. If different people with unique walking speeds will be using it, then you may need a variable speed mower. Instead of having to push the lawn mower, though, you only have to walk behind the mower and steer it where you want to go.

Self-propelled lawn mowers that are front-wheel drive provide more dexterity when it comes to turning and maneuvering. This kind of mower is perfect for those who have flat lawns. On the other hand, if you have a sloped lawn, then a rear-wheel drive lawn mower is a better choice. These offer better traction on curved land.

The biggest benefit of self-propelled lawn mowers is the time and energy you save. You can get the job done much faster without exerting a lot of effort. If you have thick grass, you don’t have to worry about pushing your lawn mower through it because the gadget will power through on its own. If you have a slope, your mower should be able to propel itself along the incline as well.

With a powerful machine like a self-propelled lawn mower, safety is a key concern for many shoppers. Keep in mind that many mowers come with a built-in safety feature where the mower only starts and runs if the operator squeezes a bar on the handle. If they let the bar go, then the mower stops. This way, if you slip and fall on the ground, you won’t be near spinning blades. You also don’t need to fiddle with complicated on/off switches or dials as the blades shut off automatically.

The Self Propelled Lawn Mower Buying Guide

  • The first thing to consider when looking for a self-propelled lawn mower is what kind of yard you have. The size and shape of your yard, as well as the kind of grass you have and the amount of slope on your lawn will affect what kind of lawn mower you need. For example, if you have a flat lawn, then you may want to consider a front-wheel drive lawn mower, instead of a rear-wheel drive lawn mower which is better for sloped yards.
  • Take a look at how easy it is to start your self-propelled lawn mower. Traditional ones have a recoil start with a pull rope. By tugging on the rope, you pull a cord, which then turns over the engine to start the self-propelled lawn mower. For some people, having to pull the rope with a recoil-start mower can be difficult. In this case, look for an electric-start mower. These are simple to start up with a key or a push button.
  • Be sure to consider whether the lawn mower has swivel wheels. This is especially important if you have curved flower beds or gardens within your lawn, or if your lawn is an irregular shape. Turning self-propelled lawn mowers can be difficult, which is why having swivel wheels is an important feature. These provide you with more control and maneuverability when steering your mower.
  • What do you want to do with your grass clippings? Many self-propelled mowers give you three key options. You can either discharge the clippings directly onto your lawn off the sides of the mower, you can collect the clippings in a bag at the rear of the mower, or you can turn the clippings into mulch as you cut the grass.
  • If you want to select the height you cut your grass, many mowers have adjustable settings where you can choose how short to trim your lawn. This is a useful feature for those who enjoy manicuring their lawns.
  • It’s important to keep your self propelled lawn mower clean, especially from the inside. Look for a mower that has a wash-out port on the deck. This way, you can just hook up your garden hose to the mower and rinse out all of the grass clippings from the blades. This helps to increase the life of the mower.