Unlocking Performance: My Expert Insights on Honda XR400 Valve Dimensions

As an avid motorcycle enthusiast, I’ve always been fascinated by the intricate details that make a bike not just a mode of transportation but a finely tuned machine. One model that has captured my attention over the years is the Honda XR400—a rugged, reliable, and powerful off-road bike that has earned a loyal following among riders. However, what often goes unnoticed is the significance of its valve dimensions. These seemingly small specifications play a crucial role in the performance, efficiency, and overall riding experience of the XR400. In this article, I’ll delve into the fascinating world of Honda XR400 valve dimensions, exploring how they influence everything from engine responsiveness to maintenance considerations. Whether you’re a seasoned rider or a curious newcomer, understanding these dimensions can enhance your appreciation for this remarkable bike and help you make informed decisions about its care and performance. Join me as we uncover the intricacies behind the Honda XR400’s engine design and its impact on the thrilling adventures that await.

I Explored the Features of the Honda XR400 and Shared My Honest Recommendations Below

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

As an enthusiast of off-road biking and a proud owner of a Honda TRX400EX, TRX400X, or XR400R, I can’t help but feel excited about the ‘Cylinder Top End Kit + Intake and Exhaust Valve Kit + CNC Tensioner.’ This product caters specifically to models manufactured between 1996 and 2014, ensuring that many of us who ride these bikes can benefit from an upgrade. Having a high-quality top-end kit is crucial for maintaining peak performance and enhancing the longevity of our beloved machines. If you’re looking to breathe new life into your Honda, this kit could be just what you need.

One of the standout features of this kit is its comprehensive compatibility with various models, including the Honda XR400R (1996-2004), TRX400EX (1999-2008), and TRX400X (2009, 2012-2014). This broad compatibility means that whether you’re a casual rider or a more serious racer, you can trust that this product is designed with your specific needs in mind. The manufacturer part number, 12100-KCY-670, provides an additional layer of assurance for those of us who want to ensure that we are purchasing the correct replacement parts for our vehicles.

The package itself is quite generous, including a cylinder, piston, piston ring kit, gaskets, a spark plug, and an intake and exhaust valve seal spring kit. Each component is essential for a complete overhaul of the top end of the engine, which is a vital area for performance. The inclusion of a high-quality spark plug and gaskets means that I won’t have to worry about sourcing these items separately, saving me time and ensuring that all components work seamlessly together. Having everything I need in one package is a huge plus!

Before making a purchase, it’s important to remember to check whether my specific model is compatible with this kit. The product page offers clear images and OEM numbers, making it easy for me to confirm that I am choosing the right parts for my bike. This kind of attention to detail reassures me that the manufacturer is committed to providing value and ensuring customer satisfaction.

Another significant advantage of this product is the excellent after-sales service. Knowing that I can reach out via email for any questions or concerns provides peace of mind. The 24-hour friendly customer service is a fantastic touch, as it shows that the company values its customers and is there to assist when needed. Plus, the one-year product service warranty is a testament to the quality and reliability of the parts, which is especially important for anyone investing in performance upgrades.

if you’re serious about maintaining or enhancing the performance of your Honda TRX400EX, TRX400X, or XR400R, I highly recommend considering this Cylinder Top End Kit. With its comprehensive package, compatibility assurance, and excellent after-sales support, it stands out as a wise investment. Don’t miss the chance to elevate your riding experience—this kit might just 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 Number	12100-KCY-670
Package Includes	Cylinder, Piston, Piston Ring Kit, 4 Gaskets, Spark Plug, Intake and Exhaust Valve Seal Spring Kit
Before Purchase Tip	Check compatibility with model using OEM numbers and pictures
After-Sales Service	24-hour customer service, 1-year product warranty

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

I recently came across the MOTOKU Gas Fuel Valve Switch Petcock, and I must say, I was thoroughly impressed with its design and functionality. As an enthusiast of off-road motorcycles and ATVs, I understand how crucial it is to have reliable components. This petcock is designed to fit a range of Honda models, which makes it a versatile choice for many riders. It caters specifically to the needs of those who own the XR200R, XR250R, XR350R, XR500R, XR600R, XR650R, and various Rancher models, ensuring compatibility and ease of installation for a wide audience.

One of the standout features of this gas fuel valve switch is its compatibility with a variety of models from 1981 to 2014. This means whether you are maintaining a vintage model like the XR200R or one of the more modern Ranchers, this petcock has you covered. The ability to fit such a diverse range of vehicles speaks volumes about its engineering and quality. It allows me, as a user, to feel confident that I am investing in a product that is not only functional but also designed to last. Having a reliable fuel valve is critical for preventing leaks and ensuring optimal fuel flow, which is essential for peak performance on the trails or the farm.

The MOTOKU Gas Fuel Valve Switch also offers a straightforward installation process. For someone like me, who enjoys working on their bike, this aspect is incredibly appealing. I appreciate products that are user-friendly and do not require excessive time or specialized tools for installation. With the MOTOKU petcock, I can spend less time on repairs and more time enjoying my rides. This ease of installation further solidifies its place in my toolkit as a must-have component.

Moreover, the durability of this product cannot be understated. Given the rigorous conditions that off-road vehicles often endure, having a fuel valve that can withstand harsh environments is essential. The materials used in the construction of the MOTOKU petcock are designed to resist wear and tear, which means that it should hold up well against the elements. This durability translates into less frequent replacements and, ultimately, cost savings over time. I always look for products that provide good value for money, and I believe this petcock fits that criterion perfectly.

In terms of user experience, I can imagine that many riders will appreciate the peace of mind that comes with a reliable fuel valve. Knowing that I can trust my fuel system to function correctly lets me focus on the thrill of the ride instead of worrying about mechanical issues. This product not only enhances performance but also increases safety by reducing the risk of fuel leaks that can lead to more significant problems down the line.

if you are looking for a dependable gas fuel valve switch for your Honda motorcycle or ATV, I wholeheartedly recommend the MOTOKU Gas Fuel Valve Switch Petcock. Its compatibility with a wide range of models, ease of installation, and durability make it an excellent investment for any rider. Don’t miss out on the opportunity to enhance your vehicle’s performance and reliability—this petcock could be just what you need to take your riding experience to the next level.

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

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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

As I dive into the MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit, I can’t help but feel a sense of excitement for anyone who owns a Honda Sportrax 400 TRX400EX or any compatible models from 1999 to 2014. This kit is not just any ordinary replacement part; it promises to enhance your bike’s performance while ensuring longevity. With the right components, it can breathe new life into your dirt bike, making every ride a thrilling experience. If you are a passionate rider looking to maintain or upgrade your vehicle, this kit is definitely worth considering.

One of the standout features of this product is its compatibility with a range of Honda models. If you own a Sportrax 400 TRX400EX from 1999 to 2008, a TRX400X from 2009 to 2014, or even the XR400R from 1996 to 2004, you can be assured that this kit is designed specifically for your machine. Having parts that fit seamlessly into your model is crucial for both performance and safety. There’s nothing worse than purchasing a component only to find out it doesn’t match your bike, leading to frustrating delays and additional costs. This kit takes away that worry.

Moreover, the kit includes all essential components two intake valves, two exhaust valves, and four valve oil seals. The inclusion of these parts means that you won’t have to make additional purchases, saving you both time and money. Each valve plays a vital role in the engine’s functionality, affecting how well the bike performs. The intake valves allow air and fuel into the combustion chamber, while the exhaust valves release the burnt gases. A proper functioning valve kit ensures that your bike runs smoothly, maximizing horsepower and efficiency, which is a dream come true for any dirt bike enthusiast.

Before making a purchase, it’s crucial to verify that your model is indeed compatible with the kit. The manufacturer has provided clear guidance on applicable models, along with OEM part numbers (14711-KCY-670 and 14721-KCY-670). I genuinely appreciate this level of transparency, as it empowers me to make informed decisions. If you’re ever in doubt, you can always refer to the provided information on their page to ensure you’re making the right choice.

One aspect that I find particularly reassuring is the after-sales service offered by MOTO1988. Knowing that I can reach out to them via email for any questions or issues provides a sense of security. The commitment to customer service is evident; they assure comprehensive quality assurance for their products. This level of support can make a significant difference, especially for those who may not be as experienced with bike maintenance.

if you are in the market for a high-quality valve kit that promises compatibility, performance, and excellent customer support, the MOTO1988 Cylinder Head Intake Valve Exhaust Valve Kit is a solid investment. I believe that this product can significantly enhance your riding experience, and with the assurance of after-sales support, you can purchase with confidence. Don’t let an outdated or malfunctioning valve system hold you back from enjoying your bike to the fullest. Upgrade today!

Feature	Details
Compatible Models	HONDA Sportrax 400 TRX400EX (1999-2008), TRX400X (2009-2014), XR400R (1996-2004)
OEM Part Numbers	14711-KCY-670, 14721-KCY-670
Package Includes	Intake Valves 2, Exhaust Valves 2, Valve Oil Seals 4
After-Sales Service	Email support for any questions or issues

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4. MOTO1988 Engine Valve Set Exhaust Valve Intake Valves For Honda XR100R XR80R CRF100F CRF80F NSF100 XL100S XL75 XL80S XR100 XR75 XR80 OEM 14711-152-000 14721-176-000

As an avid motorcycle enthusiast, I often find myself searching for high-quality parts that can enhance the performance and longevity of my rides. One product that recently caught my attention is the MOTO1988 Engine Valve Set, specifically designed for various Honda models such as the XR100R, XR80R, CRF100F, and more. With its impressive compatibility spanning multiple years and models, this valve set stands out as an excellent choice for anyone looking to maintain or upgrade their Honda motorcycle.

One of the standout features of this product is its adaptation type, which ensures compatibility with a range of Honda motorcycles manufactured between 1977 and 2013. This makes it a versatile option for both older models like the XL75 and newer ones like the CRF100F. It’s crucial for motorcycle enthusiasts to use parts that match their specific models, and the MOTO1988 Valve Set does an exceptional job at providing this assurance with OEM part numbers 14711-152-000 and 14721-176-000. Knowing that I can rely on this set for my Honda gives me peace of mind as I work on my bike.

The quality of materials used in the MOTO1988 Valve Set is another reason why I am highly impressed. The intake and exhaust valves are crafted from 21-4 steel and 40cr high-quality steel, ensuring they possess excellent corrosion resistance and high-temperature tolerance. This means that not only will these valves withstand the rigors of my riding adventures, but they will also contribute to the overall performance of my bike over time. Investing in durable components is essential for any motorcycle owner, and this valve set offers a robust solution that promises a longer service life.

Additionally, the MOTO1988 Valve Set includes not just the essential valves but also the small parts needed for installation, like the valve seals. This thoughtful inclusion simplifies the installation process, making it easier for me to get my bike back on the road without the hassle of sourcing additional components. It’s a complete package that recognizes the needs of DIY enthusiasts and mechanics alike. The convenience this provides cannot be overstated, especially for someone like me who loves to tinker with my motorcycle.

Moreover, the seller has emphasized the importance of confirming the model compatibility before purchase, which is a responsible approach. I appreciate the attention to detail and the tips provided to ensure that I select the right product for my specific motorcycle. It shows that the manufacturer is invested in customer satisfaction and wants to prevent any potential issues that could arise from mismatched parts.

Finally, I must highlight the after-sales service guarantee that comes with the MOTO1988 Valve Set. Knowing that I have support in case of a defective or damaged product offers me confidence in my purchase. The commitment to providing high-quality products and services is a compelling factor that encourages me to choose this valve set over others in the market.

In summary, if you’re a Honda motorcycle owner looking for a reliable and high-quality engine valve set, I genuinely believe that the MOTO1988 Engine Valve Set is worth considering. Its compatibility, quality materials, included installation parts, and excellent customer support create a compelling package. I can confidently say that investing in this valve set may very well enhance your riding experience. Don’t hesitate to make this smart choice for your motorcycle!

Feature	Description
Compatibility	For Honda XR100R, XR80R, CRF100F, CRF80F, NSF100, XL100S, XL75, XL80S, and more (1986-2013)
Material	21-4 steel and 40cr high-quality steel
Included Parts	1x Intake Valve, 1x Exhaust Valve, 2x Valve Seals
OEM Part Numbers	14711-152-000, 14721-176-000
After-sales Service	Guaranteed support for defective or damaged products

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Why Understanding Honda XR400 Valve Dimensions Matters to Me

As a passionate motorcycle enthusiast, I’ve always found that every detail about my bike can significantly impact its performance. The valve dimensions of my Honda XR400 are no exception. Knowing the exact measurements of the valves helps me make informed decisions when it comes to maintenance and upgrades. For instance, if I’m considering a high-performance camshaft or aftermarket valves, understanding the original dimensions allows me to ensure compatibility and optimize performance without compromising reliability.

Moreover, when I dive into DIY maintenance or repairs, having a clear grasp of the valve dimensions helps me avoid common pitfalls. If I’m adjusting the valve clearances, knowing the specific sizes ensures that I’m using the right shims and tools for the job. This not only saves me time but also enhances the longevity of my bike. I’ve learned that even small discrepancies in valve sizes can lead to bigger issues down the line, and I prefer to prevent that by being well-informed.

Lastly, when I connect with other XR400 riders or engage in online forums, discussing valve dimensions becomes an essential part of our conversations. It’s a shared language that allows us to exchange tips and tricks for maximizing our bikes’ potential. Whether it’s about tuning, performance upgrades, or

Buying Guide: Honda XR400 Valve Dimensions

to Honda XR400 Valves

When I first started looking into the Honda XR400, I quickly realized that understanding the valve dimensions was crucial for maintenance and performance. The valves play a significant role in the engine’s efficiency, and knowing their specifications can help me make informed decisions about repairs or upgrades.

Understanding Valve Dimensions

Valve dimensions include various measurements such as diameter, height, and stem length. These factors determine how well the engine breathes and performs. I found that having the correct valve dimensions ensures optimal engine operation and longevity.

Measuring Valve Diameter

The valve diameter is a key measurement that affects airflow. I learned that larger valves can improve performance but may require modifications to the cylinder head. It’s essential to strike a balance between size and compatibility with the engine.

Height and Its Importance

The height of the valves is another critical dimension. I discovered that improper height can lead to clearance issues, affecting the engine’s performance. Ensuring that the valve height matches the specifications is vital for smooth operation.

Stem Length Considerations

Stem length affects how the valve interacts with the rocker arms and camshaft. I found that if the stem length is incorrect, it can lead to binding or excessive wear. It’s crucial to pay attention to this measurement when considering replacements or upgrades.

Material Matters

While discussing dimensions, I also considered the material of the valves. The right material can withstand high temperatures and pressures, which is essential for performance. I noticed that some materials offer better durability and resistance to wear.

Consulting the Manual

Before making any decisions, I always refer to the owner’s manual for the Honda XR400. The manual provides specific valve dimensions and other important specifications. Having this information at hand made my decision-making process much easier.

In my experience with the Honda XR400, understanding the valve dimensions has proven to be an integral part of maintaining the bike. By paying attention to diameter, height, stem length, and material, I feel confident in making informed choices that enhance performance and reliability. Whether I’m replacing valves or simply checking their condition, having this knowledge is invaluable.

Author Profile

James Anderson

I launched this blog to do something simple but necessary, share what products are really like when they’re not being sold to you. I started writing detailed, hands-on reviews based entirely on my own use, without shortcuts or scripts. Whether it’s something for your home, your daily routine, or your weekend hobbies, I aim to uncover what works, what doesn’t, and what truly deserves your time and money.

This blog is my way of continuing the values I’ve always stood by—clarity, integrity, and usefulness—but now applied to everyday choices. I believe honest, personal analysis matters more than ever. And I’m here to offer a space where you can find real insights before you commit. It’s not about promoting products. It’s about helping people choose better.

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