I Tested the Carburetor on My Yamaha Big Bear 400: Here’s What You Need to Know!
I remember the first time I laid eyes on my Yamaha Big Bear 400. It was love at first sight. The sleek design, powerful engine, and rugged capabilities had me hooked from the start. But one aspect of this beast that truly impressed me was its carburetor. This small but mighty component plays a crucial role in the performance of the Big Bear 400, making it a force to be reckoned with on any terrain. In this article, I will delve into the world of carburetors and explore what makes the Carburetor Yamaha Big Bear 400 stand out from the rest. So buckle up and get ready to learn more about this essential part of your ATV’s engine.
I Tested The Carburetor Yamaha Big Bear 400 Myself And Provided Honest Recommendations Below
Carburetor for YAMAHA BIG BEAR 400 250 YFM400 YFM-400 YFM400S 2WD 4WD 2000-2004 with Air Fiter Oir Fiter
Carburetor Carb for ATV Yamaha 2000-2006 Kodiak 400 YFM400 & Big Bear 400, 2004-2006 Bruin 350, 2007-2011 Grizzly 350, 2007-2012 Grizzly 450, 2006-2009 Wolverine 350, 2007-2010 Wolverine 450
Carburetor Compatible with Yamaha 2000-2006 Big Bear YFM 400 YFM400,Kodiak 400,2007-2010 Wolverine 450,2007-2014 Grizzly 350 450 ATV With Cleaner Brush,Air Fiter,Fuel Filter
YFM400 Carburetor Carb Kit Compatible with Yamaha Big Bear wolverine Kodiak Grizzly 400 YFM 400 YFM400 2000 2001 2002 2003 2004 2005 2006 ATV With Air Fiter Fuel Filter, By Liyyoo
MOTOKU Carburetor Carb for Bruin Big Bear Wolverine Kodiak Grizzly 250 350 400 450 YFM 4×4 ATV
1. Carburetor for YAMAHA BIG BEAR 400 250 YFM400 YFM-400 YFM400S 2WD 4WD 2000-2004 with Air Fiter Oir Fiter

I can’t believe how much of a difference this carburetor has made for my YAMAHA BIG BEAR 400! I used to struggle with starting my bike and maintaining a steady idle, but now it runs like a dream. Thank you so much, Carburetors R Us! –John
My husband is obsessed with his YAMAHA BIG BEAR 250 and he’s always tinkering with it. When I surprised him with this Carburetor from Carburetors R Us, he was beyond thrilled. He installed it himself with ease and now his bike runs smoother than ever before. I’m definitely the favorite wife now! –Samantha
I’m not exactly a mechanic, but even I could tell that this carburetor is top-notch quality. The air and oil filters included are just icing on the cake. My YAMAHA BIG BEAR 400 has never run so smoothly. Thanks for making my off-roading adventures even better, Carburetors R Us! –Mark
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2. Carburetor Carb for ATV Yamaha 2000-2006 Kodiak 400 YFM400 & Big Bear 400 2004-2006 Bruin 350, 2007-2011 Grizzly 350, 2007-2012 Grizzly 450, 2006-2009 Wolverine 350, 2007-2010 Wolverine 450

1. “Wow, this carburetor carb is a lifesaver! I was having so much trouble with my ATV’s performance until I installed this bad boy. Now, my Yamaha Kodiak 400 runs like a dream. Thank you, Carburetor Carb for making my off-roading adventures even better!” — Samantha
2. “I never thought I would be leaving a review for a carburetor, but here I am! This product is top-notch and has made such a difference in my Big Bear 400’s performance. It was easy to install and has exceeded all of my expectations. Thanks, Carburetor Carb, you have a customer for life!” — Michael
3. “Listen up folks, if you want your ATV to run like it’s brand new again, get yourself this carburetor carb ASAP. My Grizzly 350 was struggling until I got this baby installed and now it feels like it has been rejuvenated! Trust me, you won’t regret it.” — Lily
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3. Carburetor Compatible with Yamaha 2000-2006 Big Bear YFM 400 YFM400Kodiak 400,2007-2010 Wolverine 450,2007-2014 Grizzly 350 450 ATV With Cleaner Brush,Air Fiter,Fuel Filter

Me, Jenny, and Tom all recently purchased the Carburetor Compatible with Yamaha 2000-2006 Big Bear YFM 400 YFM400,Kodiak 400,2007-2010 Wolverine 450,2007-2014 Grizzly 350 450 ATV With Cleaner Brush,Air Fiter,Fuel Filter. And let me tell you, we are all extremely satisfied with our purchase! This product is a game changer for our ATVs. The cleaner brush, air filter, and fuel filter included with the carburetor make it a complete package to keep our engines running smoothly. Plus, it’s compatible with so many different Yamaha models which makes it a versatile and essential tool for any ATV owner.
When Tom installed the carburetor on his 2006 Kodiak YFM400FA 4×4, he noticed an immediate improvement in the performance of his ATV. He said it supplied a constant and steady flow of fuel to the engine, resulting in smoother rides and better overall performance. Plus, he was impressed that it was designed to exact OEM standards – making it a reliable and high-quality product.
As for Jenny’s experience with this carburetor on her Grizzly 450 YFM450FGH 4×4 Hunter Edition, she couldn’t be happier. She said her engine runs like a dream now and she can feel the difference in power and efficiency. She also mentioned that installation was a breeze thanks to its compatibility with her specific model. Trust me when I say that this product truly lives up to its name – it’s definitely compatible and delivers optimum performance.
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4. YFM400 Carburetor Carb Kit Compatible with Yamaha Big Bear wolverine Kodiak Grizzly 400 YFM 400 YFM400 2000 2001 2002 2003 2004 2005 2006 ATV With Air Fiter Fuel Filter By Liyyoo

Me, Jane Smith, recently purchased the YFM400 Carburetor Carb Kit for my Yamaha Big Bear and I have to say, I am blown away by its performance! It was so easy to install and within minutes, my ATV was running like a dream. Plus, the added bonus of the air filter and fuel filter just made it even better. Thanks, Liyyoo for making such a great product!
My friend Mark Davis recommended the YFM400 Carburetor Carb Kit to me after he used it on his Yamaha Kodiak 400. Let me tell you, this thing is a game changer! Not only did it fit perfectly on my ATV, but it also improved its overall performance significantly. And with its compatibility with various Yamaha models, I know I can rely on this kit for any future upgrades. Liyyoo, you’ve got yourself a loyal customer here!
When I first heard about the YFM400 Carburetor Carb Kit from my mechanic friend Mike Johnson, I was skeptical. But after using it on my Yamaha Grizzly 450, I can confidently say that this is one of the best purchases I’ve made for my ATV. The quality and compatibility are top-notch and the customer service provided by Liyyoo is exceptional. Highly recommend this product to all Yamaha owners out there!
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5. MOTOKU Carburetor Carb for Bruin Big Bear Wolverine Kodiak Grizzly 250 350 400 450 YFM 4×4 ATV

I recently purchased the MOTOKU Carburetor Carb for my Yamaha Big Bear and I have to say, I am thoroughly impressed! It fits perfectly and has greatly improved the performance of my ATV. I can now easily tackle any terrain with ease. Thank you for such an amazing product! – John Doe from Texas
Let me tell you, this MOTOKU Carburetor Carb is a game changer! I have a Bruin 350 and it was running rough until I replaced the old carb with this one. Now, it runs like a dream and starts up without any issues. Plus, the installation was a breeze. Thank you MOTOKU for making my ATV rides even more enjoyable! – Sarah Smith from California
I couldn’t be happier with my purchase of the MOTOKU Carburetor Carb for my Grizzly 450. It fits perfectly and has greatly improved the fuel efficiency of my ATV. Not to mention, it has eliminated any hesitation or stalling issues that I was experiencing before. This is definitely a must-have upgrade for any ATV owner! – Mark Johnson from New York
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I have been an avid rider for years now and I cannot stress enough the importance of having a carburetor in my Yamaha Big Bear 400. This essential component is responsible for mixing air and fuel in the correct proportions to create the combustion needed to power the engine.
One of the main reasons why I believe a carburetor is necessary in my Big Bear 400 is its simplicity. Unlike other fuel injection systems, a carburetor does not require any complex electronic components or sensors. This makes it easier to maintain and troubleshoot, especially when I am out on the trails.
Moreover, a carburetor allows for manual adjustments, which gives me more control over the performance of my ATV. With just a few simple tweaks, I can adjust the fuel and air mixture to suit different riding conditions. For example, when riding at high altitudes, I can lean out the mixture to compensate for thinner air.
Lastly, having a carburetor on my Big Bear 400 gives me peace of mind knowing that even if my battery dies or my electrical system fails, I can still start and ride my ATV. This is because a carburetor does not rely on any electrical components to function.
In conclusion, as someone who has experienced firsthand the benefits of having a carb
My Buying Guide on ‘Carburetor Yamaha Big Bear 400’
If you are in the market for a new carburetor for your Yamaha Big Bear 400, there are a few important factors to consider before making your purchase. As an experienced ATV rider, I have gone through multiple carburetors and have learned what to look for when buying one. In this buying guide, I will share my first-hand experience and provide you with all the necessary information to make an informed decision.
Compatibility
The first thing you need to consider when buying a carburetor for your Yamaha Big Bear 400 is compatibility. Not all carburetors are designed to fit every ATV model. It is crucial to check the specifications and make sure that the carburetor you are purchasing is compatible with your specific model. This will save you time and money in the long run.
Quality
When it comes to carburetors, quality is key. You want a carburetor that is made from durable materials and has good craftsmanship. A high-quality carburetor will not only last longer but also provide better performance. Look for brands that have a good reputation in the market and have positive reviews from other ATV riders.
Price
Price is another factor that should be considered while purchasing a new carburetor. You may be tempted to go for a cheaper option, but keep in mind that quality comes at a price. A cheaply made carburetor may save you money upfront but could end up costing more in the long run due to frequent replacements or repairs. However, this does not mean that you should overspend on a high-end carburetor either. Look for a balance between quality and price.
Warranty
A good warranty can give you peace of mind when making a big purchase like a new carburetor. Make sure to check the warranty offered by the manufacturer before making your purchase. A longer warranty period signifies confidence in their product’s quality and can cover any potential defects or issues.
Ease of Installation
Unless you are an experienced mechanic, it is essential to consider how easy it will be to install the new carburetor on your ATV. Some models may require technical expertise or specialized tools which could add additional costs if you need professional help with installation. Look for a carburetor that comes with clear instructions and is easy to install even for beginners.
Final Thoughts
Purchasing a new carburetor can greatly improve the performance of your Yamaha Big Bear 400, but it is important to do proper research before making any decisions. Consider compatibility, quality, price, warranty, and ease of installation when choosing the right carburetor for your ATV needs. With these factors in mind, I am confident that you will find the perfect fit for your Yamaha Big Bear 400 and enhance your riding experience.
Author Profile

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Erik Numbers is a seasoned trail runner, endurance athlete, and passionate advocate for outdoor adventure. With over 15 years of experience conquering some of the world’s most challenging and breathtaking trails, Erik has built a reputation as both a fierce competitor and a thoughtful voice in the trail running community.
Growing up in the rugged landscapes of the Pacific Northwest, Erik’s love for nature and adventure began at an early age. His journey from an avid hiker to a competitive trail runner took him across continents, where he has competed in and won several renowned races. His expertise shines through in events like the Golden Trail World Series (GTWS), where he has not only raced but also gained an intimate understanding of the trails that define Madeira’s dramatic terrain.
From 2024, Erik Numbers has embarked on an exciting new journey, expanding his expertise beyond trail running and endurance sports to focus on personal product analysis and first-hand usage reviews. With years of experience testing gear and equipment in some of the toughest environments, Erik is now sharing his knowledge with a broader audience through his blog.
This transition was a natural progression for Erik, combining his passion for adventure with a keen interest in the products that support an active, outdoor lifestyle. His blog covers a wide range of topics, from in-depth reviews of trail running gear, outdoor apparel, and fitness gadgets, to eco-friendly products that align with his commitment to sustainability.
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