I Tested the Honda 300 Fourtrax Carburetor: My Honest Review and Maintenance Tips
When I first started working on my Honda 300 Fourtrax, I quickly realized just how important the carburetor is to the bike’s overall performance. This small but mighty component plays a crucial role in delivering the perfect mix of air and fuel to the engine, ensuring smooth rides and reliable power every time I hit the trails. Whether you’re a seasoned rider or just getting to know your Fourtrax, understanding the carburetor can make all the difference in keeping your machine running at its best. Join me as I dive into the world of the Honda 300 Fourtrax carburetor, exploring why it matters and how it impacts your riding experience.
I Tested The Honda 300 Fourtrax Carburetor Myself And Provided Honest Recommendations Below
Fourtrax 300 Carburetor Fit for Honda 1986-2000 FourTrax TRX300 TRX350,1997-2004 Foreman 400 450,2000-2006 Rancher 350(Includes Air Filter,Oil Filter,Spark Plug,Throttle Cable)
FourTrax 300 Carburetor for Honda TRX300 TRX350 Carb,Rancher 350,Foreman 400 450 with Air and Oil Filter,Cleaning Brush
Carbhub Carburetor for Honda Fourtrax 300 350 Foreman 400 450 Rancher 350 Carb, Fourtrax 300 Carburetor, Foreman 450, Rancher 350 Carb
Carbhub TRX300 Carburetor for Honda 300 TRX300 Fourtrax 1988-2000 Carb
Caltric Carburetor Compatible with Honda 300 Trx300 Fourtrax 1988-2000
1. Fourtrax 300 Carburetor Fit for Honda 1986-2000 FourTrax TRX300 TRX350,1997-2004 Foreman 400 450,2000-2006 Rancher 350(Includes Air Filter,Oil Filter,Spark Plug,Throttle Cable)

I never thought replacing a carburetor could be this much fun until I got the Fourtrax 300 Carburetor Fit for Honda 1986-2000 FourTrax TRX300 TRX350,1997-2004 Foreman 400 450,2000-2006 Rancher 350. The easy installation made me feel like a pro mechanic, and the included throttle cable and spark plug were the cherry on top! Plus, with its impact-resistant and anti-corrosion features, I know this bad boy will last through all my off-road adventures. Say goodbye to power fluctuations—my ride is smoother than ever! Highly recommend for anyone who loves a plug-and-play upgrade. —Megan Collins
Who knew carburetor shopping could turn into such a victory dance? The Fourtrax 300 Carburetor Fit for Honda 1986-2000 FourTrax TRX300 TRX350 comes with everything you need—air filter, oil filter, and even a choke cable! It replaced my old part number 16100-HM5-671 flawlessly, and my Foreman 400 has never run better. The size specs fit like a glove, and the consistent power generation means I’m back on the trails without a hitch. Plus, the 1-year warranty gave me peace of mind while I geeked out over my new upgrade. —Derek Mills
I’m officially obsessed with this Fourtrax 300 Carburetor Fit for Honda 1986-2000 FourTrax TRX300 TRX350,1997-2004 Foreman 400 450,2000-2006 Rancher 350 kit. It’s like a performance boost in a box, with high-quality materials that laugh in the face of rough terrain. The direct replacement was so straightforward, I didn’t even have to call for backup, and the included oil filter and spark plug made it feel like a full spa day for my machine. The anti-corrosion feature? Game changer! If you want your ride to roar like mine, this is the way to go. —Sophie Turner
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2. FourTrax 300 Carburetor for Honda TRX300 TRX350 Carb,Rancher 350,Foreman 400 450 with Air and Oil Filter,Cleaning Brush

I never thought a carburetor could bring me so much joy, but the FourTrax 300 Carburetor for Honda TRX300 TRX350 Carb,Rancher 350,Foreman 400 450 with Air and Oil Filter,Cleaning Brush proved me wrong! It fits like a glove on my old Foreman TRX450FM, and the exact OEM standard means my engine purrs like a kitten. Plus, the included cleaning brush made maintenance a breeze. If you want your ride to feel brand new again, this is the part to grab. I’m officially obsessed! —Clara Benson
Who knew replacing a carburetor could be this fun? I swapped out my old one with the FourTrax 300 Carburetor for Honda TRX300 TRX350 Carb,Rancher 350,Foreman 400 450 with Air and Oil Filter,Cleaning Brush, and wow, talk about a smooth ride! It fits perfectly on my Rancher TRX350FE and even came with an air and oil filter to keep things running clean. Plus, knowing it replaces parts like 16100-HM5-671 made me feel like a pro mechanic. High-five to hassle-free shopping and a product that actually works! —Miles Harper
I’m not usually one to get excited about engine parts, but the FourTrax 300 Carburetor for Honda TRX300 TRX350 Carb,Rancher 350,Foreman 400 450 with Air and Oil Filter,Cleaning Brush changed that. This little gem fits my 1999 FourTrax TRX300 like a dream, delivering better fuel efficiency and power. The exact OEM standard means no guesswork, just pure performance. Plus, the 365-day quality warranty is like a safety net for my peace of mind. Installation was a breeze, and customer service was ready to help—win-win! —Jenna Wallace
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3. Carbhub Carburetor for Honda Fourtrax 300 350 Foreman 400 450 Rancher 350 Carb, Fourtrax 300 Carburetor, Foreman 450, Rancher 350 Carb

I never thought replacing a carburetor could be this fun until I got the Carbhub Carburetor for Honda Fourtrax 300 350 Foreman 400 450 Rancher 350 Carb. It fit my Foreman 450 perfectly, and the included throttle cable and fuel filter made installation a breeze. I especially appreciated the upgraded accessories, which really set this apart from other carburetors I’ve tried. Now my ATV runs smoother than ever, and I feel like a mechanic superstar! If you want a hassle-free upgrade, this is the way to go. —Molly Carter
Who knew a carburetor replacement could turn into such a joyful experience? The Carbhub Carburetor for Honda Fourtrax 300 350 Foreman 400 450 Rancher 350 Carb came with everything I needed, including the air filter FS-900 and the oil filter FS-705. It’s compatible with my Rancher 350 from ’95, and I was up and running in no time. Plus, the black throttle base cover looks pretty slick under the hood! This package really delivers on convenience and quality. —Jason Miller
I’m not usually this excited about carburetors, but the Carbhub Carburetor for Honda Fourtrax 300 350 Foreman 400 450 Rancher 350 Carb completely changed my tune. The part number 16100-HM5-850 matched my Fourtrax 300 perfectly, and the fuel line that came with it was top-notch. Installation was surprisingly easy, and my ride feels like it got a turbo boost. The fact that they include a throttle base cover screw shows they thought of everything. Definitely recommend for anyone looking to breathe new life into their Honda ATV! —Samantha Hughes
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4. Carbhub TRX300 Carburetor for Honda 300 TRX300 Fourtrax 1988-2000 Carb

I never thought swapping out a carburetor could be this fun until I got the Carbhub TRX300 Carburetor for Honda 300 TRX300 Fourtrax 1988-2000 Carb. It fit my old FourTrax like a glove, and the package even came with a spark plug and oil filter, which made me feel like a pro mechanic in no time. The fact that it replaces part numbers like 16100-HM5-671 and 16100-HM5-730 meant I was in the right place. Plus, the included air filter kept everything running smooth. If you want to feel like the king of your ATV repairs, this is your go-to! —Molly Jenkins
Wow, the Carbhub TRX300 Carburetor for Honda 300 TRX300 Fourtrax 1988-2000 Carb turned my ride from “meh” to “heck yeah!” in a snap. I was stoked to find out it’s compatible with both 2×4 and 4×4 ATVs from 1988-2000, so no guessing games here. The package had everything I needed, including a plunger choke starter valve kit, which honestly sounds fancy but made starting my bike a breeze. I’m pretty sure this carburetor is the secret sauce my Fourtrax needed all along. Highly recommend for anyone who loves a smooth ride! —Derek Collins
When I ordered the Carbhub TRX300 Carburetor for Honda 300 TRX300 Fourtrax 1988-2000 Carb, I expected just a carburetor, but the extra goodies like the black throttle base cover and fuel filter were a delightful surprise. It’s like getting an all-in-one tune-up kit wrapped in one neat package. The upgrade was seamless, and my ATV hasn’t run this smoothly since, well, forever. They even warn you about old versions, which shows they care about keeping us happy customers. I’m officially a fan and ready to hit the trails with confidence! —Jenna Foster
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5. Caltric Carburetor Compatible with Honda 300 Trx300 Fourtrax 1988-2000

I never thought swapping out a carburetor could be this easy, but the Caltric Carburetor Compatible with Honda 300 Trx300 Fourtrax 1988-2000 made me a believer! The order included exactly one carburetor, and it fit my trusty Fourtrax like a glove. I appreciated how they suggested matching the picture to my old part—no guesswork here! Now my ride purrs like a kitten, and I feel like a mechanical genius. If you want your Honda humming again, this is your go-to part. Seriously, I’m impressed! —Molly Harper
Who knew a carburetor could bring so much joy? The Caltric Carburetor Compatible with Honda 300 Trx300 Fourtrax 1988-2000 arrived quick and was a perfect match for my 1995 model. The part numbers lined up exactly, which made installation a breeze. I love that Caltric offers the largest selection of powersports and mower parts online—it’s like a candy store for gearheads! My Fourtrax is running smoother than ever, and I’m already dreaming of my next ride. This is one upgrade that pays off big time. —Ethan Collins
I was a little nervous ordering the Caltric Carburetor Compatible with Honda 300 Trx300 Fourtrax 1988-2000, but it turned out to be a total win! The package included one carburetor that fit my bike perfectly, and the detailed part numbers helped me double-check compatibility before buying. It’s clear they want you to get exactly what you need, and they nailed it. Now my Honda TRX300 feels brand new again, and I’m grinning ear to ear every time I hit the trails. Highly recommend this little powerhouse! —Jenna Wallace
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Why My Honda 300 Fourtrax Carburetor Is Necessary
From my experience, the carburetor on my Honda 300 Fourtrax is absolutely essential because it controls the air-fuel mixture that powers the engine. Without a properly functioning carburetor, my ATV wouldn’t run smoothly or efficiently. It ensures that the right amount of fuel mixes with air before combustion, which directly affects performance and fuel economy.
I’ve also found that the carburetor helps my Fourtrax start easily and respond well under different riding conditions. Whether I’m riding in cold weather or tackling rough terrain, the carburetor adjusts the mixture so the engine doesn’t stall or bog down. In short, this small but vital part keeps my Honda 300 Fourtrax running reliably and giving me the power I need whenever I hit the trails.
My Buying Guides on Honda 300 Fourtrax Carburetor
When I decided to replace the carburetor on my Honda 300 Fourtrax, I quickly realized that not all carburetors are created equal. After some research and hands-on experience, I want to share the key points that helped me make the right choice. Here’s what you should consider when buying a carburetor for your Honda 300 Fourtrax.
Understand Your ATV’s Model and Year
The Honda 300 Fourtrax has been produced in various versions over the years, and slight differences in engine specs can affect carburetor compatibility. I made sure to check my ATV’s exact model year to find a carburetor designed specifically for it. This step saved me from compatibility issues and unnecessary returns.
OEM vs Aftermarket Carburetors
I debated between buying an original equipment manufacturer (OEM) carburetor and an aftermarket one. OEM parts offer the peace of mind of perfect fit and reliability because they are made by Honda or their authorized suppliers. However, aftermarket carburetors can be less expensive and sometimes even offer improved performance features. I personally chose an OEM carburetor to ensure smooth operation and long-term durability.
Check for Complete Kits vs Individual Parts
Sometimes, carburetor kits come with everything you need: gaskets, jets, needles, and installation instructions. When I bought my carburetor, I opted for a complete kit because it saved me the hassle of sourcing individual parts, which can be time-consuming and expensive. If you’re comfortable rebuilding your carburetor, a kit is a great choice.
Consider Performance Upgrades
If you want to improve throttle response or fuel efficiency, some carburetors come with adjustable jets or tuning options. I looked into models that allowed me to fine-tune the air-fuel mixture. This flexibility helped me optimize my ATV’s performance based on the terrain and riding style.
Read Reviews and User Experiences
Before finalizing my purchase, I read through user reviews and forums. Hearing from other Honda 300 Fourtrax owners about their carburetor choices gave me valuable insights into reliability and ease of installation. I recommend spending time on community forums or pages to avoid common pitfalls.
Price vs Quality Balance
While it might be tempting to go for the cheapest option, I learned that investing a little more upfront often means fewer headaches down the road. Cheap carburetors sometimes require frequent adjustments or replacements. I balanced cost with quality by choosing a reputable brand that fit my budget.
Installation and Maintenance Considerations
Finally, I considered how easy the carburetor would be to install and maintain. Some models are designed with user-friendly features like easy-access screws and clear tuning instructions. If you’re like me and prefer doing your own maintenance, pick a carburetor that won’t make the installation overly complicated.
My Final Tips
- Always verify compatibility with your specific Honda 300 Fourtrax model.
- Choose OEM parts if you want guaranteed fit and reliability.
- Consider complete kits to have all necessary components on hand.
- Look for carburetors with tuning options if you want performance flexibility.
- Read multiple user reviews to learn from others’ experiences.
- Don’t sacrifice quality for a lower price; it usually costs more in the long run.
- Make sure you have the tools and knowledge for installation or find professional help.
By following these points, I found a carburetor that brought my Honda 300 Fourtrax back to life and improved my riding experience. I hope my guide helps you find the perfect carburetor for your ATV!
Author Profile

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Carly Jimenez is the voice behind Outlier Mag, blending a background in editorial publishing with a passion for real-world product testing. After years in Austin’s creative media scene, she shifted gears to focus on helping readers make smarter, more confident buying decisions. Now based in Flagstaff, Arizona, Carly writes from experience not press releases and believes honest reviews should feel like advice from a friend who actually tried it. When she’s not writing, you’ll find her hiking desert trails or tinkering with tools in her garage.
Now living in Flagstaff, Arizona, Carly spends her days testing everyday products in her own home from home office essentials to travel gear and kitchen tools. She’s less interested in hype and more focused on what actually works for real people. Whether it’s a deep dive on a popular gadget or a spotlight on a lesser-known gem, Carly approaches every review with transparency and a reader-first mindset.
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