Top 8 Best 4 Stroke Weed Eater Reviews of 2020

For many years, most households have used a simple 2-stroke weed eater for lawn maintenance. These require the cumbersome task of mixing gas and oil for optimum performance. However, if you have been in your local stores or have recently been on an online shopping site, you may have seen a 4-stroke weed eater. This is the newest technology in the world of weed eaters that is creating a lot of hype. That is why, in this article we are taking a look at the best 4 stroke weed eater that you can get for your lawn.

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Why do you need a 4 Stroke Weed Eater?

For starters, the reasons why most people gravitate towards such equipment for their lawn maintenance purpose is the convenience that it provides. With the best 4 stroke weed eater, you need not worry about getting the oil to gas ration wrong. With a 4-stroke weed eater, you can use unleaded gasoline and wouldn’t have to mix oil. Relatively speaking, it is also much quieter than a 2-stroke engine. These are much more efficient at fuel combustion which makes for a cleaner exhaust odor.

These also provide a lot of power that allows you to go through tough weed and thick grass with ease. Some of these are so powerful that you don’t even need to use them at their full potential. Through multiple attachments, many of these can also be converted into other garden maintenance tools such as brush cutters, hedgers, and cultivators, thereby saving you a lot of money.

In a rush? Check out 8 Best 4 Stroke Weed Eater right now

If you are in a hurry, you can start checking out our product review and bypass the buyer’s guide. However, to make an informed decision, we urge you to read through the entire article. Without further ado, here is the review.

*Below, you'll find our more detailed reviews, but you can also click the links above to see current prices or read customer reviews on Amazon.

best 4 stroke weed eater

Via Amazon.com

As the first product on our list, this product sets the bar high for the rest. As our editor’s pick, this gas trimmer has a 25cc engine with an 18-inch trimmer head. This ensures that your tool has enough power and versatility to go through all kinds of weed and grass, even those that grow around rocks and trees.


It is easily one of the best 4 stroke weed eater on our list which is as vibration free as any product can get. Additionally, it has many attachments that can transform this trimmer into other handy tools such as an edger, a cultivator, and even a pole saw.


For line feeding purposes, all you need to do is to simply tap the head against the ground and activate the Tap ‘N Go line release feature. Although it is not as convenient as automatic line feeding, it does allow for precision and unwanted line consumption.


If you are the cautious type, there is a translucent fuel tank attached that lets you monitor the fuel level while working. The trimmer also contains a two-line system that whacks through the weed and ensures that everything is trimmed neatly. The tool is easy to maintain as it automatically removes unwanted air from the carburetor using the air purge primer bulb. This also makes it fairly easy to start.


The string trimmer also comes with a 2-year warranty which should ease some of your worries. During this period, if the trimmer stops working or begins to malfunction, you can get it easily replaced.

Pros 

  • Trimmer attachments available
  • No mixing of oil required
  • Easy line feeding
  • 2-year warranty
  • Vibration free
  • Great for heavy tasks

Cons

  • Header
  • May require frequent maintenance 
best 4 stroke weed eater

Via Amazon.com

Another amazing product on our list is this entry by Craftsman. It is easily one of the best 4 stroke weed eater that makes lawn maintenance an easy and hassle-free task. Thanks to its 29cc gas engine, it provides sufficient power to whack through weeds without making a lot of noise. Its 17-inch cutting blade ensures that you can cut more grass in less time.


It features an advanced 2-step start technology that makes it easy to start and operate. Its fixed-line head is made for 0.95-inch round line that is fairly easy to wind and refill. As our alternative pick, this string trimmer also comes with multiple attachments that allow you to use it for a variety of purposes. Even places that are hard to reach can be covered by this string trimmer. The main advantage that you will have with its 4-stroke engine is that you are not required to mix oil and gas.


The string trimmer is made by keeping in mind the convenience of the user. Its multi-handle position reduces vibration and fatigue that comes with extended use. If at any moment you are not satisfied with the product or if it malfunctions, you can always get it easily replaced as it comes with a 2-year warranty.

Pros 

  • Less noise and vibration
  • Reduced operational fatigue
  • Easy to start and use
  • Multiple attachments
  • No need to mix oil and gas
  • 2-year warranty

Cons

  • Heavy
  • May require regular maintenance
  • Difficult to find replacement spools
best 4 stroke weed eater

Via Amazon.com

If you are a little tight on your budget but still want to get the best 4 stroke weed eater, then this product by PowerSmart is perfect for you. Its 31cc engine provides all the power you will ever need to clear up weed and trim your lawn with ease, even at low RPM. It does all this and still manages to produce less noise and burn fuel cleanly.


Its three 10-inch blades go through heavy vegetation like a hot knife through butter. It is quite easy to start as it uses a Smart Start recoil system and fuel pump. The best thing about this product, other than its price, is that it works well both as a string trimmer as well as a brush cutter. For the user’s convenience, there is a shoulder strap included which makes it easy to carry. Additionally, it is also quite lightweight and you can work for long periods of time without feeling any strain.


Even during winter seasons, this string trimmer cum brush cutter can start on a couple of pulls and since there is no need to mix gas and oil, you wouldn’t have to worry about getting the mixing ratios wrong. Users have the additional advantage of getting it replaced if any malfunctions occur, thanks to a 2-year warranty that is comes with.

Pros 

  • Relatively cheap
  • Very powerful
  • Works as a brush cutter as well
  • Starts easily
  • Shoulder strap included
  • Lightweight

Cons

  • Does not work well with thicker gauge lines
  • Trigger assembly is made of plastic
best 4 stroke weed eater

Via Amazon.com

If you are looking to upgrade to one of the better models, you will be hard pressed to find anything better than this string trimmer cum brush cutter by Honda. Operating at 25cc of displacement power, this trimmer is not only lightweight, but it is also much quieter and easier to use than most other trimmers, be they in the 2 stroke or the 4-stroke category.


As a contender for the best 4 stroke weed eater, this weed trimmer comes with its own brush cutter attachment. Its 4-stroke engine does away with the need to mix oil and gas for fuel. Its straight shaft built allows you to use your string trimmer even in hard to reach places such as under the porch, steps, and fences.


Honda’s startup technology makes it easy to start and use. When in need for a line replacement, simply tap the head on the ground for more strings. Its trigger mechanism enables you to change the speed of the engine according to your needs. It also incorporates anti-vibration features that allow users to work on their yard for longer periods without feeling any strain.


The tank of the tool can hold 19.6 ounces of fuel, which means you won’t have to run to the garage after every half an hour worth of work. A 4-stroke weed eater has many moving parts that require maintenance from time to time. If you are able, you can go through the user’s guide and try to fix it yourself if need occurs. Alternatively, you can make use of the 2-year warranty and take assistance from the Honda service centers.

Pros 

  • Very powerful
  • Easy to start and operate
  • Anti-vibration features
  • Big fuel tank
  • 2-year warranty
  • Easy to maneuver
  • Lightweight

Cons

  • May require maintenance from time to time
  • Does not come with a cutting blade
best 4 stroke weed eater

Via Amazon.com

Next up, we have a powerful 4-stroke string trimmer by Troy-Bilt. Even at low RPM, this trimmer provides more power than a 2-cycle trimmer. Since power is what consumers are looking for to get through their yard work quickly, this is easily one of the best 4-stroke weed eater on our list.


Unlike its 2-cycle cousins, it does not require mixing of oil and gas, and also doesn’t produce much noise. Its Spring Assist Starting System reduces the effort that you need to put in to get it started. Even with a slow and steady pull, you can get it working instantly. If you are looking to do away with string pulling for startup, you can even buy an electric starter and begin going through the weeds with just a push of a button.


Its straight shaft build ensures that you can easily reach under low shrubs and bushes without much effort or strain. The trimmer also comes with multiple attachment capabilities that transform this beast into a blower, an edger, and even a cultivator. The trimmer’s Speed Spool Bump Head technology enables you to reload the spool without dismantling.


Ergonomically speaking, this trimmer is one of the best 4 stroke weed eater out there. Its multi-position D-handle reduces vibration which ultimately reduces the fatigue that the user will feel. Additionally, this tool comes with a 2-year warranty, in case you want to get it repaired or replaced.

Pros 

  • Ergonomically well designed
  • Multiple attachment capability
  • Very powerful
  • Easy to start
  • Easy reloading of spool
  • Doesn’t make much vibration and noise

Cons

  • Requires timely maintenance
  • Heavy
best 4 stroke weed eater

Via Amazon.com

Here we have another entry by Honda, and this time it comes with more power and attachment capabilities. With 35-cc, this is truly the most powerful weed trimmer on our list. There are many facets that easily make it one of the best 4 stroke weed eater on our list.


For starters, the trimmer is powerful enough to go through all kinds of weed and grass with ease, even at a lower RPM. There are 6 different types of attachments that you can apply, though you will have to purchase them separately. Through these, you can turn this machine into an edger, a pruner, a blower, a cultivator, and even a hedge trimmer. These can be attached with ease, thanks to its SureLoc Joint Locking System.


The engine runs solely on gas, so you won’t have to mix oil and gas. It is very fuel efficient and will incur 50% less operating cost than a 2-stroke model. It also emanates less smoke and doesn’t make a lot of noise. Honda’s versatile design for this model enables you to operate and store it in any position.


For convenience’s sake, this trimmer has a built-in anti-vibration features that make sure that you won’t get fatigued while using. It also has amazing balance that allows you to maneuver it with ease, providing you with maximum productivity for all your yard work. The trimmer comes with safety glasses that protect your eyes while when using it on thick weeds and grass that tend to blow. The product comes with a 3-year consumer warranty, so you wouldn’t have to worry about repairs and replacements.

Pros 

  • Powerful
  • Multiple attachment capability
  • Fuel efficient
  • Anti-vibration features
  • 3-year consumer warranty

Cons

  • Heavy
  • Need to purchase attachments separately 
best 4 stroke weed eater

Via Amazon.com

Next up, we have a first from the company Makita. As is the case with 4-stroke engines, you need not worry about mixing fuel and oil, which is the initial reason for looking into these models for most people. If it makes it to our list, you know it is powerful enough to be categorized as one of the best 4 stroke weed eater available in the market.


With a 25cc engine, it may not offer the power that some high-end companies like Honda do, but when you can get the job done even at low RPM, it doesn’t matter much. The trimmer has an advanced automatic engine decompression mechanism that allows you to start the tool with ease consistently. For people who are looking to use this at various angles, fortunately the tool has a multi-position lubrication system. This enables you to go through tight corners, and cumbersome angles without an issue.


The trimmer also is twice as fuel efficient and produces ten times cleaner exhaust emissions than a normal 2-stroke string trimmer. The trimmer also has a high head capacity, and can be loaded easily. It comes pre-loaded with a 0.95” line. The drive shaft is made of steel which curbs the vibration and is quite durable. The handle is ergonomically designed for a perfect fit which should minimize fatigue.


You can also keep an eye on the fuel level as the tank is translucent. If at any stage you require service center assistance, Makita provides a 2-year warranty to all consumers.

Pros 

  • Translucent fuel tank
  • Easy to maneuver
  • Fuel efficient
  • Anti-vibration properties
  • D-shaped handle reduces fatigue
  • 2-year warranty

Cons

  • Heavy
  • Not as powerful as other 4-stroke models
best 4 stroke weed eater

Via Amazon.com

Last, but definitely not the least, on our list is another entry by Honda. By now you would have realized that most Honda products are one of the most popular weed trimmers out there. It is not just their power but the brand backing that makes them some of the best 4 stroke weed eater models on our list.


Although it is a little on the weaker side compared to its 35cc cousin, don’t let the numbers alone fool you. This beast is designed to be lightweight while delivering optimum power and performance for most lawn maintenance uses.


Its engine is very quiet and Honda’s premium build quality ensures that it delivers vibration-free operations. Its straight shaft provides users with added maneuverability to clear out weed and thick grass from under the porch, around the fences, and even under playground equipment.


The tool is amazingly easy to start and is designed to ensure that you can work with it for long periods of time without feeling the least bit of strain. As long as you keep it well oiled like any other machine, you can get optimum performance out of it every time. As is the case with most Honda products, this too comes with a 2-year warranty.

Pros 

  • Lightweight
  • Vibration-free
  • Quiet
  • Works as a trimmer and a brush cutter
  • Easy maneuverability

Cons

  • Requires general maintenance
  • Not as powerful as 35cc models

Things to consider before getting the Best 4 stroke Weed Eater – Buyer’s Guide

Now that we have taken a look at some of the best products available in the market, it is time to delve into the components that make up the best 4 stroke weed eater. Once you know of all the moving parts inside a string trimmer, you will be able to make an informed decision so you won’t rue your choice later.

best 4 stroke weed eater

Just figure out what features are the most crucial to you:

Handle


The handle of a string trimmer is what you will be holding on to in order to direct the trimmer to the weeds. That is why, there are several things to consider such as shape, length, and material used.


As for shape, you will either have a curved or a straight shaft. Curved shafts are generally good when you want a tool with a closer reach, while straight shafts are ideal for longer reach and in situations that require trimming around and under obstacles. The longer your tool is the better it will be for you to reach farther off areas. As for the material construction, do not settle for a string trimmer that uses anything less than top-quality materials as it greatly affects the performance and the life of the tool.


Comfort Levels


How comfortable it feels to use the string trimmer will determine how much work you are able to put in. When buying a string trimmer, it is important to consider how easily you can handle and maneuver it for extended periods of time. Some factors that affect your comfort levels include the following:

  • Weight: Although most 4 stroke trimmers are much heavier than 2-stroke models, there are many models available that are light enough for you to manage long periods of work with them.
  • Adjustable Shaft: This will allow you to change the length of the shaft depending on your needs and get the trimmer to fit even hard-to-reach places.
  • Vibration: A good string trimmer, no matter the size of its engine, should be vibration free. Most models come equipped with anti-vibration features that reduce fatigue and it is crucial that you get one with it.

Versatility


The best 4 stroke weed eater models nowadays are highly versatile. The different attachment capabilities allow it to change into other lawn care tool so you wouldn’t have to look to purchase them separately. At the very least, a good string trimmer should be a brush cutter as well.


Power


This is one of the main elements of a 4-stroke weed eater. Generally, it is best to go for a model that has a lot of power, somewhere north of 30cc. However, there are many 25cc models available as well that can get the job done with ease. Some of these models are so powerful that they can get through the whole yard even at a low RPM. It all boils down to the thickness of the weed and the grass in your area.


Warranty


As mentioned earlier, string trimmers have many moving parts. Even if one of them fails to operate, the whole tool can come undone. That is why, it is very important to oil them and maintain them regularly. However, if your tool is giving you problems time and time again, there is no other option but to take it to the service center. At such moments, it pays to get a tool that comes with at least a 2-year warranty.


Quick Start


It can be a hassle to start string trimmers at times. That is why, we urge you to look for the best 4 stroke weed eater that has a quick start feature. This will allow you to start your tool on a whim and start whacking whenever you see those weeds and grass starting to creep into your lawn space.

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Conclusion

A 4-stroke weed whacker is an upgrade worth making, especially if you are looking for more power and do not want to care about mixing oil and gas anymore. With technological advancement, 4-stroke trimmers have become the latest fad in the world of lawn maintenance, and for good reasons too. Not only are these machines much more fuel efficient, but they also do not make as much noise as their 2-stroke counterparts.

What’s more, you will also be doing the environment a favor with lower exhaust emissions. Although, they can be a little on the heavier side, you can pick from the best 4 stroke weed eater models and get yourself one that offers the perfect balance for your yard work. As long as you keep the string trimmer in proper working condition by oiling it regularly, these shouldn’t pose any problems and can even last for decades.

If you are relatively inexperienced and green, and would like to know how to change oil in a 4-stroke weed eater, check out this video.

If you would like to share your own experiences with a 4-stroke string trimmer, or would like to add to our list, do let us know in the comment section below. Remember to like and spread the word if you know someone who might be looking to get the best 4 stroke weed eater for their garden maintenance arsenal.

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