Best Gas Trimmer: 7 Best 4-Cycle Weed Eater [Reviewed & Buyer’s Guide]

It’s a real bummer when your lawn has weed and unwanted growth in certain parts creeping their way into the well-maintained green space. 

Using a mower might be a bit of an overkill in such situations, so it’s best to opt for a weed eater instead. Obviously, weed trimmers are not the most original idea, but one that needs some thinking through. Mainly because there are plenty of gas weed eater options out there, but very few can actually meet your expectations.

That’s why we decided to go on a spree to find the best weed eaters right now, so you don’t have to. It was only after a lot of groundwork and research that we ended up with 7 best 4-cycle weed eaters of 2022 available right now.

Without further ado, let’s get down to business with the top trimmers.

Best 4-Cycle Weed Eater

Our Top PickOur Top PickArchilb-table__imageHusqvarna 324L 4-Cycle Gas String Trimmer
  • Weighs only 5.1 lbs.
  • Limited 2-year warranty
Archilb-table__imageRemington RM1159 159 cc 4-Cycle Gas Powered String Trimmer
  • 159 cc OHV gas engine
  • Walk-behind model
Archilb-table__imageCraftsman CMXGTAMD30SA 30 cc 4-Cycle Gas Powered String Trimmer
  • Easy start technology
  • 0.095'' line
Archilb-table__imageWild Badger Power WBP31BCF 31 cc Gas 4-Cycle Straight Shaft Trimmer
  • Quick start engine
  • 2-in-1 model
Archilb-table__imageTroy-Bilt TB525 EC 29 cc 4-Cycle Curved Shaft Trimmer
  • Dual line bump head
  • 2-year limited warranty
Archilb-table__imagePowerSmart PS 4531 31 cc 4 Stroke Gas String Trimmer
  • 7'' cutting width
  • 2-year warranty
Archilb-table__imageHUYOSEN 38.9 cc Grass Cutter Trimmer
  • Adjustable D-handle
  • Low-noise operation

The head of a gasoline manual lawnmower while working against the background of freshly mown grass

  1. Husqvarna 324L 4-Cycle Gas String Trimmer

Husqvarna 324L 4-Cycle 18" Cutting Path Gas String Trimmer
  • Features a 25cc 4-cycle engine which powers the 18...
  • Trimmer engine runs on unleaded gas, requiring no...

The Husqvarna 324L 4-Cycle Gas String Trimmer is an excellent choice that can tackle weed and grass in no time. Therefore, if you’re looking to maintain a neat yard without putting in a lot of time and effort, this string gas weed eater is bound to impress.

Why Did We Like It? 

Powered by a 25 cc 4-cycle engine, this Husqvarna trimmer model is designed to deliver precise cuts and improved accessibility. The straight shaft configuration provides better reach under the bushes and hard-to-reach corners. The weed eater pretty easy to use, thanks to the smart start technology, minimizing starter cord resistance by 40%.

Despite being a gas model, the tool is far more advanced than previous versions that required several attempts to start operation. Apart from that, the engine uses unleaded gas, thereby eliminating the need to mix fuels. It also includes a translucent fuel tank that allows you to monitor the fuel level while working.

However, what seals the deal for us is the “tap and go” line release, streamlining weed removal from the get-go. Unlike dated models, the T25 trimmer head enables easy line reloading, which further adds to the user’s convenience. Lastly, the high-visibility cutting shield ensures clear viewing while protecting the operator from flying rocks and debris when whacking weeds

Check out our Husqvarna edger weed eater review here for more tools from this brand.

What Could’ve Been Better? 

We are very impressed with the overall performance of this weed eater, but we couldn’t help but notice this one issue. The weed eater does not allow much room for changing the cutting angle. While that’s not a deal-breaker, many of us prefer to have that customization to change weed cutting style.

  • Smart start technology minimizes cord resistance
  • Eliminates the need for mixing oil and gas
  • T25 trimmer head enables line reloading
  • Cutting shield protects user from flying rocks and debris
  • Does not allow room for changing the cutting angle
  1. Remington RM1159 159 cc 4-Cycle Gas Powered String Trimmer

No products found.

Up next, we have picked the Remington RM1159 String Trimmer, a heavy-duty tool suitable for small to medium-sized lawns. So, if you’re looking to make short work of yard chores, this power tool will not disappoint. It’s chock full of features, providing an unparalleled cutting performance for professional-looking results.

Why Did We Like It? 

First things first, this high-performance outdoor machine can deliver 22” wide cuts in a single pass. Therefore, if you want to wrap up your lawn cutting sessions faster, this walk-behind power tool will surely deliver.

Its unique shape makes it easier to reach around garden beds, fences, and ornaments, ensuring precise cuts without damaging the vegetation. Besides, the 14” high rear wheels ensure seamless maneuverability, allowing you to turn or move in the desired direction with utmost ease.  

As such, it’s powerful enough to tackle tall grass, weed, and other dense overgrowths that have taken over your green space. Furthermore, the weed eater includes an offset trimmer head that provides more accuracy while navigating through narrow spaces while cutting weeds.

The weed eater also features a single-level height adjustment mechanism that lets you choose between three positions. Long story short, it enables users to work at a comfortable height, which reduces physical strain considerably. 

What Could’ve Been Better? 

Nothing but the hefty price tag. Don’t get us wrong, we’re very satisfied with its features and functionalities, but then again, it’s quite expensive for a lawn care tool. So, if you’re on a tight budget, we suggest skipping this and looking for affordable weed eater alternatives instead.

  • Deliver 22” wide cuts in a single pass
  • 14” high rear wheels ensure seamless maneuverability
  • Tackles tall grass, weed, and other dense overgrowths
  • Include a single-level height adjustment mechanism
  • Item is quite expensive
  1. Craftsman CMXGTAMD30SA 30 cc 4-Cycle Gas Powered String Trimmer

Craftsman CMXGTAMD30SA 30cc 4-Cycle 17-Inch Straight Shaft Gas Powered...
  • 2-STEP STARTING: Advanced 2-step and easy-start...

The Craftsman CMXGTAMD30SA String Trimmer is a powerful 30 cc 4-cycle model that combines superior ergonomics and cutting strength in one sleek tool. So, if you’re looking to invest in an advanced machine that will keep your lawn or garden perfectly maintained, give this trimmer a shot.

Why Did We Like It? 

To begin with, this weed eater has some incredible features which make it exceedingly handy and functional. For instance, it runs on a robust 4-cycle engine, delivering high performance and power with low operating noise. This bit is important as you don’t want to be that annoying neighbor who runs a loud trimmer.

Apart from that, we really like the 2-step starting feature, allowing you to turn the tool on by the simple prime and pull technique. It also includes a weed wacker head, which simplifies line feeding and reloading into the shaft

Plus, the large, multi-position handle is a significant advantage, providing more control and customization to all users, right or left-handed. That said, it can cut 17” wide paths, which is nothing short of impressive for a straight shaft model. To top it all, it can be paired with TrimmerPlus attachments, so you can convert it to other lawn care devices as per requirements. 

 What Could’ve Been Better? 

We’re, for most parts, satisfied with its design and performance, but the only thing that bothered us was the weight. This straight shaft string trimmer clocks in a little over 18 lbs, which is undoubtedly quite bulky and heavy for some users. Therefore, it’s not meant for extended use since you’re most likely to develop muscle fatigue early on when cutting weeds.

  • High performance with low operating sound
  • 2-step prime and pull starting feature
  • Weedwacker head simplifies line feeding and reloading
  • Straight shaft model can cut 17” wide swaths
  • Device is quite bulky at 18 lbs.
  1. Wild Badger Power WBP31BCF 31 cc Gas 4-Cycle Straight Shaft Trimmer

No products found.

We’re halfway through our list of cordless string trimmers, and now is a good time to introduce the Wild Badger Power WBP31BCF Straight Shaft Trimmer. If your old, battery-powered string trimmers have failed to make the cut and you need something with more muscle and edge, add this to the shopping cart right away.

Why Did We Like It?

There are many reasons to purchase this cordless string trimmer but let’s start with the basics. For starters, it’s a dual function model that combines a string trimmer and a brush cutter. Therefore, if you want something that can power through a dense and thick overgrowth, get your hands on this power tool.

As for its cutting path, it can deliver 17” wide swaths of weeds, which is undoubtedly great at this price point. Besides, it runs on a 31 cc full-crank shaft engine, meaning smooth operation with higher fuel efficiency. 

You can also expect reduced emissions, which makes it all the more viable, especially when aiming to reduce your carbon footprint. Furthermore, the aluminum casing is a very thoughtful addition, given that it minimizes vibration, which in turn allows you to work comfortably without straining your arms when cutting weeds around the house

But that’s not all; the weed eater comes with a harness to distribute the machine’s weight, so you can engage in extended lawn grooming sessions without the shaft getting too heavy to carry.

What Could’ve Been Better? 

We must say that this 2-in-1 model is a fine piece of equipment, delivering superior performance for long-term use. Nevertheless, if we were to find out one flaw, it would be the poorly written instructions. Not only do they lack detail, but they’re also written in the wrong sequence. 

  • Combines a string trimmer and a brush cutter
  • Can create 17” wide cut paths in each pass
  • Aluminum casing minimizes vibration
  • Includes a shoulder harness to distribute device weight
  • Instructions are poorly written and in the wrong order
  1. Troy-Bilt TB525 EC 29 cc 4-Cycle Curved Shaft Trimmer

No products found.

The Troy-Bilt TB525 EC Curved Shaft Trimmer is designed for the perfectionist in you. If you like to keep the lawn or garden a certain way, it’s important to get the right tools for the job. But then again, you don’t want to spend hours cutting grass, and hence we recommend buying this good string trimmer.

Why Did We Like It? 

First of all, it’s a breeze to use, which is not something you can say about all gas-fuelled models. The spring assist technology allows you to pull the cord easily to get the tool started on the first attempt. 

Alternatively, you may use the jump start mechanism to altogether avoid pulling cords. However, if you opt for the latter, the engine starter has to be purchased separately as an attachment. That aside, we’re very pleased with its efficiency and precision, creating 17” wide swaths in each pass when cutting the weeds and lawn

In this case, the curved shaft design enhances practicality, providing comfort and improved accessibility to hard-to-reach areas. Furthermore, the speed spool bump head enables swift cuts and convenient line loading. 

It’s also attachment-capable, and as such, you can pair with 10 different TrimmerPlus parts and convert it to a pole saw, blower, edger, cultivator, and more. All in all, it’s a remarkable power tool that will benefit you in the long run.

What Could’ve Been Better? 

We are more or less satisfied with the performance of this multi-purpose device. Nevertheless, it has cans that are hard to ignore. Basically, it’s quite loud and can induce a headache if you’re going to use it for long. We would have liked it better if it had a mechanism to somewhat muffle the engine sound.

  • Spring assist technology allows easy cord pulling
  • Curved shaft design provides comfort and accessibility
  • Can be attached with 10 different TrimmerPlus parts
  • Speed spool bump head simplified line loading
  • Machine is annoyingly loud
  1. PowerSmart PS 4532 31 cc 4 Stroke Gas String Trimmer

PowerSmart String Trimmer & Edger, 2 Stroke Weed Wacker with Straight...
  • 🍀POWERFUL ENGINE: This 2 cycle gas string...
  • 🍀2-IN-1 TRIMMER/EDGER: This gas weed wacker can...

The PowerSmart PS 4532 Gas String Trimmer is the ultimate choice for anyone looking to reduce labor. It’s a powerful machine that can handle high grass and dense weed clusters without giving in to the elements. So, if that sounds like a good deal, get your hands on this weed eater stat.

Why Did We Like It? 

First off, this weed eater also doubles a brush cutter, streamlining your landscaping with unparalleled performance. Since it’s powered by a 4 stroke engine, you need not worry about mixing oil and gas. 

Besides, the engine delivers a higher cutting strength and more torque compared to a 2-cycle model and runs at a lower RPM. Meaning, it’s not only more fuel-efficient but also produces less noise than conventional gas trimmers.

But the good things don’t end here; the string trimmer head includes 3 teeth blades, making swift and precise cuts, measuring 10” wide. However, what seals the deal for us is the smart start recoil system, which enables quick activation without requiring much effort.

To further add to your convenience, it features a shoulder strap to ensure easy carrying and comfortable use to ensure that the weed eater doesn’t get too heavy. Overall, it’s a superb machine that can sort out your lawn or weeds in a jiffy. 

What Could’ve Been Better? 

Well, there’s no sugarcoating this, but PS 4531 31 cc model weighs a whopping 25 lbs. So, if you have never used a weed eater before, we recommend looking for other options, as this one is anything but an entry-level machine and is quite heavy. Other than that, it’s still a great option, especially for users who know their way around lawn care power tools.

  • Does not require mixing of oil and gas
  • Fuel-efficient model runs at a lower RPM
  • Smart start recoil system enables quick activation
  • Includes a shoulder strap for easy carrying
  • Device weighs a whopping 25 lbs.
  1. HUYOSEN 38.9 cc Grass Cutter Trimmer

No products found.

Now that we’ve reached the end of our list of the best gas weed trimmers, we would like to finish off with the HUYOSEN 38.9 cc Grass Cutter Trimmer. This 3-in-1 model is the perfect option for busy homeowners who want to streamline lawn maintenance and weed cutting. So, if you’re tired of your old trimmer stopping mid-project, it’s time to upgrade to this top-notch power tool.

Why Did We Like It? 

First things first, we cannot get enough of its engine efficiency, ensuring smooth operation and reduced vibration. Therefore, if you want a user-friendly power tool that’s more manageable, this one surely checks the box.

That said, the engine can deliver a maximum speed of 7000 RPM, good enough to take on dense weed clusters and thick grass while reducing gasoline consumption. This way, you get to save operational costs and can get more done in less time. 

Other than that, the adjustable D-handle and slip-free design along the shaft provide better ergonomics and operator comfort necessary for long grooming sessions. The weed eater also includes safety features like the debris shield mounted above the cutting head, protecting users from deflected dirt, rock, etc.

Plus, the valve throttle protection switch prevents accidental triggers, which is a lifesaver if you have overactive kids at home. Lastly, the backpack carrying design is another excellent feature that enhances operator comfort and overall utility when using the heavy tool

What Could’ve Been Better? 

Hands down, it’s one of the most user-friendly and result-driven trimmers on the market. But there’s a tiny glitch we can’t overlook. It’s not so much a fault in the machine than a blunder by the manufacturers. Regardless, the assembly instructions are all over the place and shed little light on the actual procedure on how to assemble the weed eater

  • Engine delivers a maximum speed of 7000 RPM
  • Debris shield protects users from deflected dirt and rock
  • Valve throttle protection switch prevents accidental triggers
  • Backpack carrying design enhances user comfort and utility
  • Assembly instructions are difficult to follow

New electro mower machine full length at isolated background for cut out, grass cutter instrument, gardening tool

4-Cycle Weed Eater Buyer’s Guide

Knowing all about the 7 best 4-cycle weed eaters of 2022 may seem enough information to go ahead and buy one. However, there are a few factors to be considered before coming to a purchase decision on the right trimmer for your needs.

That’s why we have put together a buyer’s guide to walk you through some key points when purchasing gas trimmers. Let’s look at them now.

  1. Shaft Design – Straight Or Curved?

The first thing you want to decide is whether to buy a straight or curved shaft model. Both these options have their own set of advantages, so it ultimately comes down to your preference. The straight shaft is the more common of the two and allows you to cut with precision and ease. 

Meanwhile, the curved shaft string gives you more operating angles, so you can access hard-to-reach places when cutting weeds. It also gives you the right balance to work your way through a dense overgrowth.

  1. Ergonomics

This is another essential point since you’ll be operating the weed eater manually, and the results depend on the application. Look for features like adjustable handle and height settings, as they contribute to comfortable use while using the heavy weed eater. Furthermore, if you’re buying one for the first time, it’s best to get a lightweight option to simplify things.

On the off chance you’re going for a bulkier trimmer, make sure to get something with a sturdy shoulder strap to offset the heavy tool. You don’t want to be carrying all that weight with your arms alone.

  1. Anti-vibration Technology

Many new-age gas-powered models include anti-vibration technology, but that’s not a given. Make sure to verify the specs before purchasing a weed eater, as this could make all the difference between extended use and early muscle fatigue. To explain further, the anti-vibration mechanism will help you work longer and minimize the strain on your arms.

  1. Easy Start Technology

No matter which model you buy, it’s essential to check how the trimmer starts. Anything which requires multiple attempts is a no-go, as you don’t want to be pulling cords for several minutes. That said, most weed eater models on our list need minimal effort to start engine operation. However, some of them need a separate starter, which is not included with the trimmer.

  1. Cutting Width

This may seem like a no-brainer, but the cutting width of a weed eater will ultimately determine its overall performance. Your machine could have the most powerful engine, but it’s of little use if its cutting width is insufficient. But then again, what’s sufficient may vary from one user to another. 

However, as a rule of thumb, we recommend opting for 17” or higher in case of bigger home lawns or gardens. Anything of lesser value is good enough for small yards with scant overgrowth.

The worker of a garden cuts off a grass. The man in a uniform of the general worker works at a lawn. Work of municipal services on improvement of territories.

Verdict on The Best Gas Trimmers

That’s all from us!

We hope you could find the most suitable weed eater from our top 7 recommendations. But before you go ahead and place an order, we want to share some advice on buying trimmers

Make sure to get a weed eater that matches your skill level and experience. After all, you don’t want to buy something too advanced only to underuse it. Also, with some trimmer models, there’s a learning curve, so you might want to take that into account. On that note, we would like to sign off with a quick recap of our findings on the best weed eater.

The Husqvarna 324 L 4-Cycle Gas String Trimmer is the best overall. At the same time the Wild Badger Power 31 cc Gas 4-Cycle Straight Shaft Trimmer is the best lightweight weed eater in our opinion. 

Meanwhile, the Remington RM1159 159 cc 4-Cycle Gas Powered String Trimmer is the best premium model. And finally, the Craftsman 30 cc 4-Cycle Gas Powered String Trimmer is the best budget buy. 

Want to know about other brand’s 4-cycle string trimmer? Checkout our exclusive article on 4-cycle weed eater Stihl manufactures to know more on this product.

Till next time! Keep it trimmed!

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Aida Vasquez
Aida has been part of Architecture Lab ever since 2011 when she started ghost writing for the website on art and design topics, today she is our veteran design contributor, covering a wide array of topics that fuel her creativity.

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