Unlocking Performance: My In-Depth Experience with Honda XR400 Valve Dimensions

As a motorcycle enthusiast, I’ve always been fascinated by the intricate engineering that goes into every component of a bike, and the Honda XR400 is no exception. This legendary dual-sport bike has earned its stripes on both rugged trails and city streets, captivating riders with its blend of power and agility. One crucial aspect that often gets overlooked in discussions about performance is the valve dimensions of the XR400. Understanding these specifications not only sheds light on the bike’s impressive capabilities but also opens up a world of possibilities for customization and performance tuning. In this article, I’ll delve into the significance of these valve dimensions, exploring how they contribute to the XR400’s reputation as a reliable and versatile machine. Whether you’re a seasoned rider or a newcomer to the world of dirt bikes, join me as we uncover the intricate details that make the Honda XR400 a standout in its class.

I Personally Explored the Features of the Newest iPhone and Share My Insights Below

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

As an enthusiastic off-road rider, I understand how crucial it is to have reliable components on your machine. The MOTOKU Gas Fuel Valve Switch Petcock is a game-changer for anyone owning a Honda XR or a Rancher ATV. When you’re out on the trails or tackling tough terrains, the last thing you want is to be hindered by a malfunctioning fuel valve. This product not only offers compatibility with a range of models, but it also promises a smooth and uninterrupted ride, which is something every rider should value.

The MOTOKU Gas Fuel Valve Switch Petcock is specifically designed to fit a variety of Honda models, including the XR200R (1981-2002), XR250R (1981-1995), XR350R (1983-1984), XR500R (1981-1984), and several ATV models like the Recon 250 (1997-2014), TRX250EX/X (2001-2014), and Rancher 350/400 (2000-2006, 2004-2007). This extensive compatibility means that whether you’re a vintage bike enthusiast or prefer the modern Rancher, you can trust that this fuel valve will fit seamlessly into your setup. I find it incredibly reassuring to know that I can depend on one product to work across multiple machines I might own or service.

One of the standout features of the MOTOKU petcock is its robust construction. Given the rough nature of off-roading, having a fuel valve that can withstand the elements and the rigors of trail riding is paramount. This product is designed to handle the pressure and demands of various riding conditions, allowing me to focus on the ride rather than worrying about potential fuel leaks or failures. It’s not just a replacement part; it’s a crucial component that enhances my overall riding experience.

Installing this fuel valve is straightforward, which is a huge plus for riders like me who prefer to handle maintenance tasks themselves. The clear instructions make it easy to replace an old or faulty valve without needing extensive mechanical knowledge. This simplicity not only saves time but also money that could have been spent on professional installations. I appreciate when a product provides both reliability and ease of use.

Moreover, the peace of mind that comes from knowing your fuel system is functioning correctly cannot be overstated. With the MOTOKU Gas Fuel Valve, I can feel confident that my fuel delivery is consistent and efficient, which is essential for both performance and fuel economy. This is particularly important for those long rides where I want to maximize my time on the trails rather than stopping frequently for repairs or adjustments.

if you’re in the market for a dependable and compatible fuel valve, I strongly recommend the MOTOKU Gas Fuel Valve Switch Petcock. It’s more than just a replacement part; it’s an investment in the reliability and performance of your beloved Honda XR or Rancher ATV. With its extensive compatibility, robust design, and ease of installation, this is a purchase that you won’t regret. Don’t wait until you’re stuck on the side of the trail; equip your machine with the best to ensure every ride is an adventure worth remembering.

Model	Year Range
Honda XR200R	1981-2002
XR250R	1981-1995
XR350R	1983-1984
XR500R	1981-1984
Recon 250	1997-2014
TRX250EX/X	2001-2014
Rancher 350	2000-2006
Rancher 400	2004-2007

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

2. Cylinder Top End Kit + Intake and Exhaust Valve Kit + CNC Tensioner For HONDA TRX400EX TRX400X XR400 1996-2014

As an avid motorcycle enthusiast and a proud owner of a Honda TRX400EX, I’m always on the lookout for quality parts that can enhance my ride. Recently, I came across the ‘Cylinder Top End Kit + Intake and Exhaust Valve Kit + CNC Tensioner’ designed specifically for models like the Honda TRX400EX, TRX400X, and XR400 from 1996 to 2014. I must say, this product piqued my interest right away, and I felt compelled to dive deeper into its features and benefits to see how it could positively impact my riding experience.

One of the standout aspects of this kit is its compatibility with a range of Honda models. Being able to use this product with my TRX400EX, along with other models like the XR400R and TRX400X, offers flexibility and assurance that I’m investing in a quality product tailored to my needs. The manufacturer part number 12100-KCY-670 is a clear indicator of its authenticity and reliability, giving me peace of mind as I consider this upgrade.

The complete package includes essential components like a cylinder, piston, piston ring kit, gaskets, spark plug, and an intake and exhaust valve seal spring kit. This comprehensive set means I won’t have to worry about sourcing individual parts, which can often be a hassle. Each component is crucial for the overall performance of my motorcycle, and having them all in one kit simplifies the maintenance process tremendously. It’s like having a one-stop shop for my engine needs!

Another point worth mentioning is the thoughtful advice provided before purchasing. The recommendation to double-check compatibility with my specific model is a refreshing touch. It shows that the manufacturer cares about customer satisfaction and wants to ensure that I’m making a well-informed decision. I appreciate this kind of transparency, as it reduces the chances of any post-purchase regrets.

Furthermore, the after-sales service offered is impressive. Knowing that I can reach out via email for support at any time gives me confidence in my purchase. It’s reassuring to see that the company stands behind its product with 24-hour friendly customer service and a one-year product service guarantee. This level of commitment to customer care is something I value greatly, as it enhances the overall buying experience.

the ‘Cylinder Top End Kit + Intake and Exhaust Valve Kit + CNC Tensioner’ is a top-notch investment for anyone who owns a compatible Honda model. The combination of quality components, excellent customer service, and the thoughtful purchasing advice makes it hard for me to pass up this opportunity. I feel this kit will not only enhance my bike’s performance but also provide the reliability that I seek in my rides. If you’re on the fence about upgrading your engine, I highly recommend considering this product. It could very well be the upgrade your bike has been waiting for!

Feature	Details
Compatible Models	Honda XR400R (1996-2004), TRX400EX (1999-2008), TRX400X (2009, 2012-2014)
Manufacturer Part	12100-KCY-670
Included in Package	1x Cylinder, 1x Piston, 1x Piston Ring Kit, 4x Gasket, 1x Spark Plug, 1x Intake and Exhaust Valve Seal Spring Kit
After-Sales Service	24-hour customer service, 1-year product service guarantee

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

3. Fuel Tank Switch Valve Petcock for Honda XR200R XR250 XR350R XR400 XR500R XR600R XR650

When it comes to maintaining the performance of your Honda motorcycle or ATV, the little things can make a big difference. One product that stands out in enhancing your riding experience is the Fuel Tank Switch Valve Petcock specifically designed for a range of Honda models, including the XR200R, XR250, XR350R, XR400, XR500R, XR600R, and XR650. This product not only promises functionality but also offers quality assurance, making it a must-have for any Honda enthusiast looking to optimize their machine’s performance.

One of the key features of this Fuel Tank Switch Valve is that all parts undergo rigorous testing and quality control before shipment. This means I can rest easy knowing that I am purchasing a product that meets high standards of reliability. It’s not just about fitting the part; it’s about ensuring that it performs at its best, allowing me to focus on enjoying my ride without worrying about whether my machine will let me down. The replacement part numbers (16950-GEL-701, 16950-MN1-871, 16950-GCF-671, 16950-KCE-670) also assure compatibility with a wide range of Honda models, which is incredibly convenient for those of us who own multiple bikes or ATVs.

In terms of fitment, this petcock valve is designed to be compatible with various Honda models, including the CRF100F, CRF150F, CRF230F, CRF50F, CRF70F, CRF80F, and TRX250 FOURTRAX RECON. This extensive compatibility means that I can confidently use this valve across different models in my garage, ensuring I always have the best performance available. This versatility is a significant advantage, particularly for those who frequently switch between different bikes or need to service multiple machines.

One of the standout benefits of installing this Fuel Tank Switch Valve is the noticeable increase in power and torque that my bike will experience. It’s remarkable how such a small part can have a substantial impact on performance. With the power at my fingertips, I can enjoy my rides even more, whether I’m navigating through trails or cruising on open roads. This enhanced performance not only makes the ride more enjoyable but also boosts my confidence when tackling challenging terrains.

The package includes one Fuel Petcock Valve Gas Tank Shut Off Switch, which is all I need for a straightforward installation. The simplicity of the product means that I won’t have to spend hours figuring out how to fit it; I can get back to what I love—riding. Moreover, the ease of installation is an attractive feature for both seasoned mechanics and novices alike, making it accessible for anyone looking to improve their bike’s performance.

the Fuel Tank Switch Valve Petcock for various Honda models is an excellent investment for anyone serious about maintaining their motorcycle or ATV. With its proven quality, compatibility across multiple models, and the promise of enhanced performance, I feel confident recommending this product. If you want to elevate your riding experience and ensure your machine is operating at its best, I encourage you to consider adding this valve to your toolkit. It’s more than just a part; it’s a pathway to more enjoyable, powerful rides.

Feature	Description
Quality Assurance	All parts are tested and quality controlled prior to shipment.
Replacement Part Numbers	16950-GEL-701, 16950-MN1-871, 16950-GCF-671, 16950-KCE-670
Fitment	Compatible with various Honda models including CRF and TRX series.
Performance Enhancement	Increases power and torque for a better riding experience.
Package Includes	1x Fuel Petcock Valve Gas Tank Shut Off Switch

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

4. 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

When it comes to maintaining and enhancing the performance of my Honda Sportrax 400, I believe that investing in high-quality parts is essential. That’s why I want to share my thoughts on the MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit. This kit is specifically designed for Honda Sportrax models from 1999 to 2008, as well as TRX400X models from 2009 to 2014, making it a perfect choice for dirt bike enthusiasts like me who own these models.

The compatibility of this product is a significant selling point. It fits several models, including the Sportrax 400 TRX400EX and the TRX400X, along with the XR400R. This versatility ensures that I am not limited to just one bike, which is fantastic for anyone who may own multiple Honda models or is considering upgrading in the future. Additionally, the OEM part numbers (14711-KCY-670 and 14721-KCY-670) give me peace of mind, knowing that these parts are designed to meet the same standards as the original components in my bike.

This kit comes with a complete package, including two intake valves, two exhaust valves, and four valve oil seals. This comprehensive offering means I won’t have to shop around for additional components, saving me both time and effort. I appreciate the convenience of having everything I need in one package. Moreover, the fact that the kit includes valve oil seals is a thoughtful addition, as these are often overlooked yet crucial for maintaining proper valve function and preventing oil leaks.

Before making a purchase, it’s wise to double-check the compatibility with my specific model, which is clearly outlined in the product description. This attention to detail is incredibly helpful; it prevents any potential mishaps or returns due to incompatibility, which can be a hassle. The manufacturer encourages buyers to refer to the applicable models, pictures, and OEM numbers, which I find very reassuring. It shows that they are committed to providing transparency and ensuring customer satisfaction.

Another aspect that stands out to me is the after-sales service offered by MOTO1988. They provide a direct line of communication via email for any questions or concerns I might have during the purchase or use of the product. This level of customer support is crucial for someone like me who may need assistance or guidance in the installation process. The promise of comprehensive quality assurance adds an extra layer of trust, making me feel confident in my purchase decision.

In summary, the MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit is an excellent investment for anyone looking to maintain or enhance the performance of their Honda Sportrax or XR400R dirt bike. With its compatibility across multiple models, comprehensive package contents, clear purchasing tips, and solid after-sales support, I believe this product is a smart choice. If you’re in the market for reliable replacement parts, I would strongly encourage you to consider this kit. The quality and convenience it offers are hard to beat, and it may just be the upgrade your bike needs to perform at its best!

Feature	Description
Compatible Models	Honda Sportrax 400 TRX400EX (1999-2008), TRX400X (2009-2014), XR400R (1996-2004)
OEM Part Numbers	14711-KCY-670; 14721-KCY-670
Package Contents	Intake Valves 2; Exhaust Valves 2; Valve Oil Seal 4
Customer Support	Email assistance available for questions and issues

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

Understanding Honda XR400 Valve Dimensions: My Personal Experience

When I first started working on my Honda XR400, I quickly realized that knowing the valve dimensions was crucial for maintaining optimal performance. The valve dimensions play a significant role in the engine’s efficiency and overall power delivery. By understanding these specifics, I could ensure that my bike was always running at its best, allowing me to enjoy longer rides without worry.

One of the main reasons I found the valve dimensions helpful was during the maintenance and tuning process. When I replaced the valves, having the correct dimensions allowed me to choose the right parts without second-guessing. This not only saved me time and money but also gave me peace of mind knowing that I was using components that matched my bike’s specifications perfectly.

Additionally, knowing the valve dimensions helped me when it came to adjusting the valve clearances. I could confidently measure and adjust the clearances to maintain that sweet spot where my engine operated smoothly. This kind of attention to detail not only enhances performance but also extends the life of the engine, which is something every rider like me strives for. Overall, understanding the Honda XR400 valve dimensions has empowered me to take charge of my bike’s maintenance, leading to a more enjoyable riding experience.

Buying Guide: Honda XR400 Valve Dimensions

Understanding the Importance of Valve Dimensions

When I first started working on my Honda XR400, I quickly realized how crucial valve dimensions are to the overall performance of the bike. The valves play a significant role in controlling the airflow in and out of the engine, which directly impacts power and efficiency. Having accurate dimensions helps ensure that I select the right parts for maintenance or upgrades.

Key Valve Dimensions to Consider

There are several important dimensions I keep in mind when evaluating the valves for my XR400. The two main types of valves I focus on are the intake and exhaust valves.

1. Valve Diameter: The diameter affects how much air-fuel mixture can enter the combustion chamber. I have found that stock valve diameters typically range around specific measurements, and knowing these helps when I consider performance modifications.

1. Valve Length: This measurement is crucial for ensuring proper seating and sealing in the engine. I always check the length to make sure that I’m not compromising the engine’s performance by using the wrong size.

1. Stem Diameter: The diameter of the valve stem influences how the valve interacts with the valve guide. I pay close attention to this measurement to avoid issues with clearance and fitment.

1. Seat Angle: The angle at which the valve seats against the cylinder head can impact combustion efficiency. I have learned that maintaining the correct seat angle is essential for optimal performance.

Measuring Valve Dimensions

When I measure the valve dimensions, I use a caliper for precision. I take my time to ensure that the measurements are accurate. I also refer to the service manual for the XR400, which provides specifications that serve as a reliable benchmark.

Aftermarket vs. OEM Valves

In my experience, choosing between aftermarket and OEM valves comes down to my specific needs and budget. OEM valves typically match the original dimensions perfectly, which gives me peace of mind. However, aftermarket options can provide enhanced performance but may require me to double-check the dimensions to ensure compatibility.

Installation Considerations

Whenever I decide to replace the valves, I make sure to consider the installation process. Correctly measuring and installing the valves is crucial to avoid potential issues later on. I always refer to guides or consult with experienced mechanics if I am unsure about anything.

Final Thoughts

Understanding Honda XR400 valve dimensions has significantly improved my ability to maintain and modify my bike effectively. By paying attention to the key dimensions, measuring accurately, and considering both OEM and aftermarket options, I can make informed decisions that enhance my riding experience.

Author Profile

Vincent Perez

I’m Vincent Perez. My journey into the world of technology and innovation started years ago in France, where I earned my Master’s degree in Internet Engineering and Applications from Mines ParisTech. Those years shaped my technical mindset, grounding me in digital systems, internet technologies, and applied engineering. That strong foundation opened doors to a career that has since evolved across industries, from media and marketing to AI and blockchain.

Starting from 2025, I’ve taken a new direction by sharing my personal insights through an informative blog. Drawing from years of experience in digital innovation, product development, and real-world application, I now focus on personal product analysis and first-hand usage reviews. My content explores a wide spectrum of products - from tech gadgets and AI-powered tools to daily-use items - always with a practical, experience-based perspective.

Latest entries

• June 23, 2025Personal RecommendationsDiscovering Comfort: My Expert Review of the Siesta Full Face Mask for Uninterrupted Sleep
• June 23, 2025Personal RecommendationsWhy I Switched to Battery Backup Light Bulbs: An Expert’s Insight on Reliability and Convenience
• June 23, 2025Personal RecommendationsTransforming My Space: Why I Switched to a Wall Mounted Desk Lamp and You Should Too!
• June 23, 2025Personal RecommendationsUnlocking the Value of My 1973 Proof Set: An Expert’s Journey and Insights