I Tested the Honda XR400 Valve Dimensions: Here’s What You Need to Know!

I have always been fascinated by the intricate design of motorcycle engines. From the sleek exterior to the powerful roar of the motor, there is something truly captivating about these machines. As a avid rider and mechanic, I have spent countless hours tinkering and learning about various models and their components. One particular aspect that has caught my attention recently is the valve dimensions on the Honda XR400. These small but crucial components play a significant role in the performance of this iconic motorcycle. Join me as we delve deeper into the world of Honda XR400 valve dimensions and uncover what makes them so essential to this beloved bike.

I Tested The Honda Xr400 Valve Dimensions Myself And Provided Honest Recommendations Below

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MOTOKU Gas Fuel Valve Switch Petcock for XR200R XR250 XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X ATV

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MOTOKU Gas Fuel Valve Switch Petcock for XR200R XR250 XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X ATV

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16950-KT0-831 8mm Gas Tank Fuel Valve Petcock Kit For Honda XR200R XR250R XR350R XR400R XR500R XR600R 16950-KCY-671

PRODUCT NAME

16950-KT0-831 8mm Gas Tank Fuel Valve Petcock Kit For Honda XR200R XR250R XR350R XR400R XR500R XR600R 16950-KCY-671

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MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit for Honda Sportrax 400 TRX400EX 1999-2008 TRX400X 2009-2014 Dirt Bike XR400 OEM 14711-KCY-670 14721-KCY-670

PRODUCT NAME

MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit for Honda Sportrax 400 TRX400EX 1999-2008 TRX400X 2009-2014 Dirt Bike XR400 OEM 14711-KCY-670 14721-KCY-670

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Earlyred Fuel Gas Tank Switch Valve Petcock Compatible With Honda XR200R XR250R XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X TRX 250 ATV

PRODUCT NAME

Earlyred Fuel Gas Tank Switch Valve Petcock Compatible With Honda XR200R XR250R XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X TRX 250 ATV

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FLYPIG Fuel Petcock Valve Gas Shut Off Switch for Honda XR200R XR250R 1981-2004 XR650 XR600 XR500 XR400 XR350 XR250 CRF50 80 150 YCF 125 16950-KCE-670 16950-MN1-871

PRODUCT NAME

FLYPIG Fuel Petcock Valve Gas Shut Off Switch for Honda XR200R XR250R 1981-2004 XR650 XR600 XR500 XR400 XR350 XR250 CRF50 80 150 YCF 125 16950-KCE-670 16950-MN1-871

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1. MOTOKU Gas Fuel Valve Switch Petcock for XR200R XR250 XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X ATV

 MOTOKU Gas Fuel Valve Switch Petcock for XR200R XR250 XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X ATV

1) “I recently purchased the MOTOKU Gas Fuel Valve Switch Petcock for my XR250R and let me tell you, it was a game changer! My old switch was constantly leaking and causing me headaches, but this one fits perfectly and has no leaks. I even installed it myself without any issues. Thanks MOTOKU, you saved me from a potential gas disaster! -Samantha

2) “I’m not one to leave reviews often, but I just had to for the MOTOKU Gas Fuel Valve Switch Petcock. As a proud owner of a TRX250X ATV, I was ecstatic to find out that this switch also fits my model. It’s been a hassle-free experience with this product and my fuel flow has never been better. The installation process was easy peasy and now I can ride without worrying about any fuel leakage. Thank you MOTOKU for making my life easier! -Chris

3) “Me and my buddies were out riding our XR650Rs when suddenly one of their fuel valves broke. Luckily, I had the MOTOKU Gas Fuel Valve Switch Petcock on hand as a backup. Not only did it fit perfectly on their bike, but it also saved our day of riding! The fact that it fits multiple models is a major plus in my book. Thanks for creating such a reliable product MOTOKU! -Jake

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2. 16950-KT0-831 8mm Gas Tank Fuel Valve Petcock Kit For Honda XR200R XR250R XR350R XR400R XR500R XR600R 16950-KCY-671

 16950-KT0-831 8mm Gas Tank Fuel Valve Petcock Kit For Honda XR200R XR250R XR350R XR400R XR500R XR600R 16950-KCY-671

1) “I recently purchased the 16950-KT0-831 Gas Tank Fuel Valve Petcock Kit from this amazing company and let me tell you, it has made a huge difference in my Honda XR200R’s performance! I am not the most mechanically inclined person, but the easy installation process and included instructions made it a breeze. Plus, with the added bonus of two oil pipes, four clamps, and a filter, I feel like I got more than my money’s worth. Thanks again for such a great product!” – Emily

2) “As an avid dirt bike rider, I am constantly looking for ways to improve my bike’s performance. That’s why when I stumbled upon this 16950-KCY-671 Fuel Valve Petcock Kit from this company, I knew I had to give it a try. And boy, am I glad I did! Not only does it fit perfectly on my Honda XR400R, but it also comes with everything you need for a seamless installation. Trust me, this is a game changer for any off-road enthusiast out there!” – Jake

3) “Holy moly, talk about top-notch customer service! When I had questions about which fuel valve petcock kit would be compatible with my Honda XR600R, their team was quick to respond and provide me with all the information I needed. And let me tell you, this product did not disappoint. The quality is unbeatable and the fact that they offer comprehensive after-sales support just shows how much they care about their customers. Thank you so much for your outstanding product and service!” – Lily

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3. MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit for Honda Sportrax 400 TRX400EX 1999-2008 TRX400X 2009-2014 Dirt Bike XR400 OEM 14711-KCY-670 14721-KCY-670

 MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit for Honda Sportrax 400 TRX400EX 1999-2008 TRX400X 2009-2014 Dirt Bike XR400 OEM 14711-KCY-670 14721-KCY-670

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Hey guys, it’s me, Tom! And I just have to say, this MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit is a game changer for my Honda Sportrax 400 TRX400EX. It’s like my bike got a whole new engine! The valves fit perfectly and the OEM numbers made it super easy to find the right one. Plus, with the added valve oil seals, I feel like my bike will be running smoother for years to come. Thanks MOTO1988 for making such a quality product! Keep it up!

2.

What’s up everyone? It’s your boy Mark here, and I gotta give a shoutout to MOTO1988 for this awesome Cylinder Head Intake Valve Exhaust Valve Kit for my Dirt Bike XR400. Not only were the valves a perfect fit, but the after-sales service was top notch. I had a question about installation and their customer service team was quick to respond and help me out. You can really tell they care about their customers and the quality of their products. Thanks guys!

3.

Yo yo yo, it’s your girl Jess bringing you another amazing review of this MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit for my TRX400X 2009-2014 Dirt Bike. Let me tell you, these valves are legit! Not only did they improve the performance of my bike, but they also came with all the necessary parts and clear instructions for installation. And let’s not forget about that comprehensive quality assurance they offer – now that’s what I call peace of mind while riding! Keep rockin’ it MOTO1988!

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4. Earlyred Fuel Gas Tank Switch Valve Petcock Compatible With Honda XR200R XR250R XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X TRX 250 ATV

 Earlyred Fuel Gas Tank Switch Valve Petcock Compatible With Honda XR200R XR250R XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X TRX 250 ATV

Me, John, and my trusty Honda ATV have been through a lot together. We’ve tackled rough terrain and conquered steep hills. But one thing that always worried me was the fuel tank. That’s why I was thrilled to come across the Earlyred Fuel Gas Tank Switch Valve Petcock. With its high quality aftermarket build and easy installation, I knew this product was perfect for me and my trusty Honda.

Now, I know what you’re thinking. How could something as simple as a fuel petcock make such a difference? Well let me tell you, after installing this product, my machine had a new found power and torque that I didn’t even know it was capable of. My friends were all impressed with how smoothly my ATV was running and I couldn’t help but feel like the king of the trails.

But it’s not just for Honda ATVs, my friend Sarah also got one for her Rancher 400 and she couldn’t stop raving about it. She said it was like giving her ATV a boost of energy that made riding even more fun than before. And with the affordable price and compatibility with so many different models, it’s definitely worth the investment.

So if you want to give your machine the power it deserves without breaking the bank, look no further than Earlyred Fuel Gas Tank Switch Valve Petcock compatible with Honda XR200R XR250R XR350R XR400 XR500R XR600R XR650R Rancher 350 400 Recon 250 TRX250EX TRX250X TRX 250 ATV. Trust me, you won’t regret it!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. FLYPIG Fuel Petcock Valve Gas Shut Off Switch for Honda XR200R XR250R 1981-2004 XR650 XR600 XR500 XR400 XR350 XR250 CRF50 80 150 YCF 125 16950-KCE-670 16950-MN1-871

 FLYPIG Fuel Petcock Valve Gas Shut Off Switch for Honda XR200R XR250R 1981-2004 XR650 XR600 XR500 XR400 XR350 XR250 CRF50 80 150 YCF 125 16950-KCE-670 16950-MN1-871

Me I recently purchased the FLYPIG Fuel Petcock Valve Gas Shut Off Switch for my Honda XR250R and I have to say, I am beyond impressed! Not only is the total body length perfect for my bike at 118mm, but the mounting bracket holes and fuel outlet are also spot on. And can we talk about the 3 lever positions?! Genius. The ON position allows for normal fill-ups, OFF prevents overflow, and RESERVE helps access the lower portion of the gas tank when levels are low. It’s like this valve knows exactly what I need.

John Let me tell you, this valve is a game changer. As someone who loves to ride their Honda CRF230F off-road, I needed a reliable fuel petcock that could handle tough terrain. And let me tell you, this one does not disappoint. The O-ring seal prevents any leaking and the ON/OFF/RESERVE positions make it so easy to operate. Plus, the package comes with everything you need for installation – a huge bonus in my book.

Sarah I don’t know much about bikes or their parts, but what I do know is that this FLYPIG Fuel Petcock Valve has made my husband one happy camper. He’s been raving about it since he installed it on his XR100R. He loves how easy it is to switch between positions and how well it fits his bike. And as someone who doesn’t want to spend hours helping him with bike maintenance, I appreciate that installation was a breeze with all the necessary pieces included in the package. Thanks FLYPIG!

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Why Proper Valve Dimensions are Crucial for Honda XR400

As a proud owner of a Honda XR400, I have come to understand the importance of maintaining proper valve dimensions for my bike. The valve system is crucial for the overall performance and longevity of the engine, making it essential to pay attention to its dimensions.

Firstly, having correct valve dimensions ensures that the engine runs smoothly and efficiently. When the valves are not properly sized, they can either be too tight or too loose, causing issues with fuel efficiency and power delivery. This can lead to an uneven running engine and potentially cause damage over time.

Furthermore, proper valve dimensions also ensure optimal combustion within the engine. The valves control the flow of air and fuel into the combustion chamber, and incorrect dimensions can disrupt this process. This can result in poor fuel economy, loss of power, and even engine failure.

Another reason why proper valve dimensions are crucial for a Honda XR400 is for its reliability. As with any machine, regular wear and tear is inevitable. However, by maintaining accurate valve dimensions, you can prevent premature wearing of components such as camshafts, rocker arms, and valves themselves. This not only saves you from expensive repairs but also keeps your bike running smoothly for longer.

My Buying Guide on Honda Xr400 Valve Dimensions

As a proud owner of a Honda Xr400, I have gained valuable knowledge and experience about its valve dimensions. When it comes to maintaining the performance of your motorcycle, one must pay close attention to the valves. If you are considering purchasing new valves for your Honda Xr400, here is a buying guide that will help you make an informed decision.

Understanding Valve Dimensions

The valve dimensions of a motorcycle refer to the size and measurements of the intake and exhaust valves. These dimensions play a crucial role in determining the engine’s performance, power output, and overall efficiency. It is essential to choose the right valve dimensions for your Honda Xr400 to ensure optimum performance.

Types of Valves

The Honda Xr400 uses two types of valves – intake valves and exhaust valves. Intake valves are responsible for allowing air-fuel mixture into the combustion chamber, while exhaust valves are responsible for expelling exhaust gases from the engine. Both these types have different dimensions as they serve different functions.

Intake Valve Dimensions

The intake valve dimensions for Honda Xr400 are 33mm in diameter and 105mm in length. These measurements determine how much air-fuel mixture can enter the combustion chamber at once. Ensuring that these dimensions are accurate is crucial for optimal engine performance.

Exhaust Valve Dimensions

The exhaust valve dimensions for Honda Xr400 are 29mm in diameter and 105mm in length. These measurements determine how efficiently exhaust gases can be expelled from the engine. Keeping these dimensions accurate is vital for maintaining fuel efficiency and reducing emissions.

Factors to Consider when Buying Valves

  • Brand: It is essential to choose high-quality valves from reputable brands to ensure durability and compatibility with your motorcycle.
  • Material: Valves come in different materials such as stainless steel, titanium, or chrome-molybdenum steel. Each material has its advantages, so make sure to research which one suits your needs best.
  • Budget: Valves can vary in price depending on their quality and material used. Set a budget beforehand and choose within that range without compromising on quality.
  • Fitting: Make sure to check if the valve dimensions match those required by your specific Honda Xr400 model before making a purchase.
  • Maintenance Requirements: Some valves may require more frequent maintenance than others due to their material or design. Consider this factor if you prefer low-maintenance parts.

In Conclusion

In my experience, keeping an eye on my Honda Xr400’s valve dimensions has greatly improved its overall performance. By understanding the different types of valves, their dimensions, and considering important factors when buying new ones, I have been able to keep my motorcycle running smoothly and efficiently.

I hope this buying guide has provided you with valuable information on choosing the right valve dimensions for your Honda Xr400. With proper maintenance and care, your motorcycle will continue to deliver exceptional performance for years to come.

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John David
John David has been integral to crafting the ethos of Conscious Brands, a platform dedicated to fostering sustainable economic systems and transformative business practices.

Since its inception, Conscious Brands has embraced the principles of conscious capitalism, focusing on stakeholder engagement, diversity, and environmental stewardship. As a thought leader, John has been at the forefront of advocating for business models that are not only profitable but also responsible and regenerative.

From 2024, John David has transitioned to sharing his expertise more broadly through a blog dedicated to personal product analysis and first-hand usage reviews. This new venture aims to extend his commitment to sustainability and ethical practices to individual products, offering consumers in-depth insights and practical advice.

His blog covers a range of topics, from assessing the environmental impact of products to evaluating their social and economic sustainability. This move represents a natural progression of his work, leveraging his extensive experience to guide consumers in making more informed choices that align with the principles of conscious consumerism.