If you’re upgrading your Yamaha XS650 in 2026, I recommend considering kits like the Keyster rebuild set for 78-79 models, the Yamaha XS650S special jet kit, and others tailored for specific years and models. These kits offer durable parts, precise jet sizes, and easy installation, ensuring better performance and reliability. Keep in mind compatibility, quality, and support. Stay with me to discover the top options and what makes each one ideal for your bike.
Key Takeaways
- Compatibility with specific Yamaha XS650 model years (1978-1983) ensures proper fit and optimal performance for 2026 upgrades.
- High-quality jet kits include adjustable jets, needles, and gaskets for precise tuning and enhanced throttle response.
- Durable materials resist fuel, oil, and temperature exposure, ensuring long-lasting reliability in modern riding conditions.
- Reputable suppliers offer detailed installation instructions, technical support, and warranties for peace of mind.
- Price, warranty coverage, and positive customer reviews help identify the best value upgrade kits for 2026.
| 2x Carburetor Carb Rebuild Repair Kit Fit for 78-79 XS650 |  | Best Rebuild Kit | Kit Contents: Main jet, slow jet, seat, 2 kits | Compatibility: Yamaha XS650 78-79 | Material Quality: High-quality, Taiwan-made | VIEW LATEST PRICE | See Our Full Breakdown |
| YAMAHA XS650 XS650 SPECIAL KEYSTER CARB KIT 1980-1981 |  | Best OEM Replacement | Kit Contents: Gasket, needles, jets, screws, washers | Compatibility: Yamaha XS650 1980-1981 | Material Quality: Made in Japan | VIEW LATEST PRICE | See Our Full Breakdown |
| XS650 Yamaha Custom Carburetor Jet Kit |  | Performance Upgrade | Kit Contents: Jets, needle, spacers, modification parts, instructions | Compatibility: Yamaha XS650 (year unspecified, custom) | Material Quality: Custom-made, high-quality components | VIEW LATEST PRICE | See Our Full Breakdown |
| Yamaha XS650S Carburetor Rebuild Kit (1981-1983) |  | Trusted Rebuild Solution | Kit Contents: Repair sets, needles, seats, gaskets | Compatibility: Yamaha XS650S 1981-1983 | Material Quality: Durable plastic and metal | VIEW LATEST PRICE | See Our Full Breakdown |
| ZTBH Carburetor Kit for XS650S Motorcycle |  | Reliable Custom Kit | Kit Contents: Repair parts, needles, seats, multiple sets | Compatibility: Yamaha XS650S 1981-1983 | Material Quality: High-quality metal | VIEW LATEST PRICE | See Our Full Breakdown |
| Motorbike Carburetor Repair Kit for Yamaha XS650S |  | Affordable Repair Kit | Kit Contents: Diaphragm kits, needles, screws | Compatibility: Yamaha XS650S 1981-1983 | Material Quality: Selected raw materials, durable | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
2x Carburetor Carb Rebuild Repair Kit Fit for 78-79 XS650
If you own a 1978-1979 Yamaha XS650 and need to restore your carburetors, this rebuild repair kit is an excellent choice. It’s specifically designed for models like the XS650S Special and XS650S2 Special II, ensuring perfect fit and performance. Made with high-quality materials in Taiwan, each kit includes essential components such as main jets, slow jets, seats, and more. Plus, you get two kits per purchase on Amazon, offering great value. With a 60-day warranty and a 4-star customer rating, it’s a dependable option for restoring your carburetors and maintaining ideal engine performance.
- Kit Contents:Main jet, slow jet, seat, 2 kits
- Compatibility:Yamaha XS650 78-79
- Material Quality:High-quality, Taiwan-made
- Installation Support:Rebuild, repair, optimal performance
- Warranty/Support:60-day warranty, Amazon support
- Product Type:Rebuild repair kits
- Additional Feature:High-quality Taiwan manufacturing
- Additional Feature:Includes main and slow jets
- Additional Feature:60-day warranty included
YAMAHA XS650 XS650 SPECIAL KEYSTER CARB KIT 1980-1981
The YAMAHA XS650 XS650 SPECIAL KEYSTER CARB KIT 1980-1981 is an ideal upgrade for enthusiasts restoring or maintaining vintage XS650 models from the early ’80s. Made in Japan, this kit includes essential components like float bowl gasket, slide needle, float needle and seat, 132.5 main jet, 42.5 pilot jet, and other small parts needed for proper carburetor function. Although it’s discontinued, it remains a popular choice for those seeking authentic replacement parts. Designed specifically for the 1980-1981 models, this kit ensures reliable performance and a proper fit. If you’re restoring an early ’80s XS650, this kit offers a solid upgrade option.
- Kit Contents:Gasket, needles, jets, screws, washers
- Compatibility:Yamaha XS650 1980-1981
- Material Quality:Made in Japan
- Installation Support:Complete kit, support available
- Warranty/Support:30-day return, support available
- Product Type:Complete carb kit
- Additional Feature:Made in Japan
- Additional Feature:Discontinued by manufacturer
- Additional Feature:Includes detailed carb components
XS650 Yamaha Custom Carburetor Jet Kit
Designed specifically for Yamaha XS650 owners seeking precise tuning, the XS650 Yamaha Custom Carburetor Jet Kit offers a tailored solution to optimize performance. This kit enhances power across all RPMs, improves throttle response, and eliminates lean exhaust popping that can damage your engine. Custom-made to your bike’s specifications, it includes main jets, pilot jets, needle adjusters, and essential components. Easy to install with basic tools, the kit comes with detailed instructions, a carb schematic, and tuning techniques. Plus, support is available if needed. With a 100% satisfaction guarantee, this jet kit guarantees your XS650 runs smoothly and efficiently.
- Kit Contents:Jets, needle, spacers, modification parts, instructions
- Compatibility:Yamaha XS650 (year unspecified, custom)
- Material Quality:Custom-made, high-quality components
- Installation Support:Step-by-step instructions, tuning guidance
- Warranty/Support:Satisfaction guarantee, full refund
- Product Type:Custom jet kit
- Additional Feature:Customizable based on info
- Additional Feature:Includes tuning techniques
- Additional Feature:Satisfaction guarantee offered
Yamaha XS650S Carburetor Rebuild Kit (1981-1983)
For motorcycle enthusiasts restoring or maintaining a Yamaha XS650S from 1981 to 1983, the Yamaha XS650S Carburetor Rebuild Kit offers a reliable and straightforward solution. Designed with high-quality plastic and metal, it matches the original specifications for easy installation and dependable performance. This kit includes two repair sets, suitable for restoring the carburetor’s stability and efficiency. Although aftermarket, it’s made to guarantee durability and reliable operation. Available in black, golden, or silver, it’s a practical choice for those wanting to refresh their bike’s carburetor without hassle. Overall, it’s a cost-effective way to keep your XS650S running smoothly.
- Kit Contents:Repair sets, needles, seats, gaskets
- Compatibility:Yamaha XS650S 1981-1983
- Material Quality:Durable plastic and metal
- Installation Support:Easy installation, factory specifications
- Warranty/Support:30-day return, warranty info online
- Product Type:Rebuild kits
- Additional Feature:Durable plastic and metal
- Additional Feature:Multiple color options
- Additional Feature:Factory specification match
ZTBH Carburetor Kit for XS650S Motorcycle
If you own an XS650S motorcycle from 1981 to 1983 and need reliable carburetor repairs, the ZTBH Carburetor Kit is an excellent choice. It includes two sets of high-quality repair components, such as floating needles and seats, specifically designed for these models. Made from durable metal materials, the parts resist wear and damage, ensuring long-lasting performance. Professionally manufactured with precise workmanship, this kit offers stable, reliable operation over time. Whether for repairs or maintenance, it provides all the essential parts needed to keep your carburetor functioning smoothly and efficiently, making it a trusted replacement option.
- Kit Contents:Repair parts, needles, seats, multiple sets
- Compatibility:Yamaha XS650S 1981-1983
- Material Quality:High-quality metal
- Installation Support:Easy to install, rebuild/repair focus
- Warranty/Support:30-day return, warranty details
- Product Type:Repair kits, diaphragms
- Additional Feature:Made from high-quality metal
- Additional Feature:Suitable for 1981-1983 models
- Additional Feature:Reliable replacement parts
Motorbike Carburetor Repair Kit for Yamaha XS650S
The Motorbike Carburetor Repair Kit for Yamaha XS650S is an excellent choice for riders looking to restore their motorcycle’s performance without the expense of a full carburetor replacement. This kit includes two sets of diaphragm rebuilds, crafted from high-quality materials that match original specifications. It’s lightweight, durable, and easy to install, making it perfect for quick repairs and motor rebuilds. Designed specifically for 1981-1983 XS650S models, it ensures compatibility when verified with the model and year. Factory-produced with a 30-day return policy, this kit offers a cost-effective, reliable solution to improve your bike’s operation and efficiency.
- Kit Contents:Diaphragm kits, needles, screws
- Compatibility:Yamaha XS650S 1981-1983
- Material Quality:Selected raw materials, durable
- Installation Support:Easy to install, repair kits
- Warranty/Support:30-day return, warranty support
- Product Type:Repair/rebuild kits
- Additional Feature:Factory-owned production
- Additional Feature:Lightweight, portable design
- Additional Feature:Suitable for engine rebuilds
Factors to Consider When Choosing a Carburetor Upgrade Kit for Yamaha XS650
When selecting a carburetor upgrade kit for my Yamaha XS650, I focus on compatibility with my bike’s year and the right jet sizes for peak performance. I also consider the durability of the materials and how easy it is to install the kit myself. Finally, I check what components are included to guarantee I get everything needed for a smooth upgrade.
Compatibility With Year
Choosing the right carburetor upgrade kit for your Yamaha XS650 hinges on verifying its compatibility with your specific model year. I always check if the kit explicitly states compatibility with my bike, whether it’s 1978-1979 or 1980-1981. It’s vital that the parts are designed for your motorcycle’s unique carburetor specifications. I also make sure the kit’s components match the original configuration for my year to guarantee proper fitment. If your bike has modifications, you want a kit suited for those or the stock setup. Finally, I review manufacturer details to confirm the kit is meant for my exact model year. This careful approach helps prevent installation issues and guarantees that the upgrade functions correctly.
Jet Size and Range
Selecting the right jet size for your Yamaha XS650 upgrade kit directly impacts how your motorcycle performs across different riding conditions. The jet controls how much fuel is delivered to the engine, influencing throttle response and overall power. Choosing a range of jet sizes allows you to fine-tune airflow, especially if you’ve made modifications or ride in varying environments. Larger jets boost high RPM power but can cause rich running at low speeds, while smaller jets improve fuel economy. Proper jet sizing is critical to prevent issues like lean combustion, which can lead to overheating or engine damage. When selecting a kit, consider the recommended jet size range for your specific XS650 model and your typical riding elevation or environment to achieve ideal performance.
Material Durability
Durability of materials plays a vital role in guaranteeing your Yamaha XS650 carburetor upgrade lasts under demanding riding conditions. When choosing a kit, opt for high-quality, corrosion-resistant materials like durable plastics, metals, or composites. These materials are essential for resisting exposure to fuel, oil, and temperature fluctuations that can cause degradation over time. Look for components designed to withstand wear and fatigue, especially jets, needles, and diaphragms that move frequently. Reinforced or specially treated materials can further improve resistance against corrosion, oxidation, and chemical damage. Always check product specifications to verify the materials meet or surpass OEM standards for durability. Investing in sturdy, well-made parts guarantees your upgrade remains reliable and performs at its best, ride after ride.
Ease of Installation
When upgrading your Yamaha XS650 carburetor, ease of installation can make a big difference in how smoothly the process goes. I recommend choosing a kit with clear, step-by-step instructions to minimize confusion and save time. Make sure the kit includes all necessary components and tools so you won’t need extra trips to the store or delays. It’s also best to select a kit designed specifically for your model year, ensuring proper fit and compatibility. Look for pre-assembled parts or quick-connect features that cut down on installation complexity. Additionally, check if the manufacturer offers technical support or detailed guidance—having expert help can be a real lifesaver if you run into issues. These factors help make the upgrade more straightforward and less frustrating.
Included Components
Understanding the components included in a carburetor upgrade kit is essential to guaranteeing it meets your Yamaha XS650’s specific needs. Most kits come with jets, gaskets, needles, and screws, which are crucial for tuning and rebuilding. High-quality kits feature main jets, pilot jets, float needles, and seats that match factory specs, helping you achieve maximum performance. Some kits also include slide springs, nylon spacers, and detailed schematics, making thorough upgrades easier. Premium options often supply tuning tools and clear installation instructions, saving time and reducing errors. When selecting a kit, it’s important to evaluate the included components to verify compatibility with your XS650 model and understand the extent of modifications needed. This helps you choose a kit that fits your goals and skill level perfectly.
Price and Warranty
Choosing the right carburetor upgrade kit for your Yamaha XS650 involves more than just comparing features; it’s also about evaluating the price and warranty. I recommend checking the warranty period, as longer coverage offers better protection against defects over time. It’s smart to compare prices from multiple suppliers to ensure you’re getting a good deal, especially when factoring in shipping costs. Some kits come with satisfaction guarantees or money-back policies, which provide added peace of mind. Be aware that warranties may vary, with some covering only certain components or lasting for limited periods, impacting long-term reliability. If you find a lower price elsewhere, don’t hesitate to report it—many sellers will match or beat competitors to give you the best value.
Supplier Reputation
A supplier’s reputation plays a crucial role in guaranteeing you get a reliable and high-quality carburetor upgrade kit for your Yamaha XS650. Reputable suppliers consistently offer genuine parts that meet or surpass OEM standards, reducing the risk of fitment or performance issues. When a supplier has strong industry recognition and positive reviews, it’s a good sign they prioritize quality and customer satisfaction. Established companies also typically have transparent return policies, warranties, and support, making post-purchase assistance more accessible. You can verify a supplier’s credibility through independent reviews, forums, or certifications, helping you avoid counterfeit or substandard parts. Choosing a supplier with a proven track record in Yamaha or motorcycle parts ensures better compatibility, smoother installation, and long-term reliability for your upgrade.
Frequently Asked Questions
Will These Kits Improve My Xs650’s Fuel Efficiency?
Yes, upgrading your Yamaha XS650 carburetor can improve your bike’s fuel efficiency. I’ve found that modern kits often feature better jetting, smoother throttle response, and improved airflow, which help optimize fuel use. However, the actual gains depend on the specific kit and how well it’s installed. Overall, a quality upgrade can make your ride more economical and enjoyable, especially if you’re looking to get the most out of every tank.
Are These Upgrade Kits Compatible With All Yamaha XS650 Models?
I’ve found that most Yamaha XS650 carburetor upgrade kits are compatible with a wide range of models, making modifications quite manageable. Still, I recommend double-checking your specific bike’s year and model details before buying. This way, you guarantee seamless swapping and superior performance. Don’t forget to consult with experts or official guides—they can help you avoid any unwanted woes. Happy upgrading!
How Difficult Is the Installation Process for Beginners?
Installing Yamaha XS650 carburetor upgrade kits can be manageable for beginners if you take your time. I found that following detailed instructions and watching tutorial videos made the process smoother. Expect some patience and basic mechanical skills—mainly removing old carbs, adjusting linkages, and securing new ones. Don’t rush, double-check your work, and you’ll be able to upgrade your bike without too much trouble.
Do These Kits Come With a Warranty or Guarantee?
Yes, most Yamaha XS650 carburetor upgrade kits come with a warranty or guarantee. I’ve found that reputable brands usually offer at least a one-year warranty, covering manufacturing defects and parts failure. This gives me peace of mind knowing I can get support or replacements if something goes wrong. Always check the specific kit’s details before purchasing to ensure it includes a warranty, as policies can vary between manufacturers.
Can These Carburetor Upgrade Kits Increase the Bike’s Horsepower?
Absolutely, upgrading your carburetor can boost your bike’s horsepower—think of it like giving your engine a shot of adrenaline. I’ve seen noticeable improvements in throttle response and power, especially when paired with proper tuning. These kits often optimize fuel flow and airflow, revealing hidden potential. So, if you’re after more power and better performance, a quality upgrade kit is definitely worth considering.
Conclusion
Upgrading your Yamaha XS650 carburetor is like giving your bike a new heartbeat—revving with fresh energy and precision. Whether you choose a rebuild kit or a complete upgrade, I promise it’ll transform your ride, making it smoother and more responsive. Don’t settle for less; think of it as fueling your passion and keeping your bike running like a well-oiled masterpiece. Ready to hit the road with confidence? Your perfect upgrade awaits!
