fits model: Yz250. make: Yamaha. year: 2002–2005.

( Brand: Ufo Plastics ), ( Manufacturer Part Number: YAKIT301-046 )
The Yakit301-046 2-Stroke UFO Kit is an exceptional upgrade for your Yamaha YZ125 or YZ250 motorcycles from the years 2002 to 2005. This kit is meticulously designed to enhance your bike's performance and efficiency, providing you with a smoother, more powerful riding experience.
The UFO Kit, an acronym for Ultimate Fuel Optimizer, is a comprehensive solution that includes a high-quality carburetor and fuel injection system. The carburetor is a 36mm Mikuni TMX, renowned for its precision and durability. It features a flat slide design, which allows for more consistent air/fuel mixing, resulting in improved throttle response and power delivery.
The fuel injection system, on the other hand, is a sophisticated Keihin unit. This system utilizes a 45mm throttle body and a 12-hole injector, ensuring precise fuel delivery for optimal combustion. The fuel injection system also includes a lambda sensor for closed-loop fuel mapping, ensuring that your bike always runs at its most efficient.
The kit is also equipped with a high-flow air filter, which helps to improve engine breathing and reduce air restriction. This, in turn, leads to increased power and improved engine longevity. The air filter is easy to replace and maintain, ensuring that your bike continues to perform at its best.
Additionally, the Yakit301-046 UFO Kit includes a high-capacity fuel pump and a fuel pressure regulator. The fuel pump ensures a consistent fuel supply to the engine, while the regulator maintains the correct fuel pressure, ensuring optimal engine performance.
The kit also includes all necessary hardware for installation, making it a straightforward and hassle-free upgrade for your Yamaha YZ125 or YZ250. The installation process is well-documented with clear, step-by-step instructions, and the kit is compatible with both stock and aftermarket exhaust systems.
In conclusion, the Yakit301-046 2-Stroke UFO Kit is an excellent investment for any Yamaha YZ125 or YZ250 owner looking to enhance their bike's performance and efficiency. With its high-quality carburetor, fuel injection system, air filter, fuel pump, and fuel pressure regulator, this kit provides a comprehensive solution for improving your bike's power, throttle response, and fuel efficiency.
Pros of buying a 2-stroke YZ125 UFO kit for Yamaha YZ250 (Yakit301-046):1. Cost-effective: The kit is a more affordable option compared to buying a new YZ125 or even a fully rebuilt YZ250.
2. Customization: The kit allows you to customize the bike to your liking by choosing the components you want to use.
3. Availability of parts: Since the YZ125 is a popular model, finding replacement parts for the kit will be easier than for an older model.
4. Increased performance: The 2-stroke engine in the kit is known for its power and responsiveness, which can improve the overall performance of the YZ250.
Cons of buying a 2-stroke YZ125 UFO kit for Yamaha YZ250 (Yakit301-046):1. Compatibility issues: There may be compatibility issues between the kit and the original YZ250 components, which could require additional modifications or replacement parts.
2. Expertise required: Installing the kit requires a certain level of mechanical expertise, which some buyers may not have.
3. Quality concerns: Since the kit is not an original Yamaha part, there may be concerns about the quality of the components used in the kit.
4. Potential for decreased reliability: The 2-stroke engine in the kit may be less reliable than the original 4-stroke engine in the YZ250.
Conclusion:The 2-stroke YZ125 UFO kit for Yamaha YZ250 (Yakit301-046) can be a cost-effective and customizable option for those who want to improve the performance of their YZ250. However, there are potential compatibility issues, expertise required, quality concerns, and potential reliability issues that buyers should be aware of. If you have the necessary mechanical expertise and are comfortable with the potential risks, the kit could be a worthwhile investment. However, if you prefer a more reliable and hassle-free option, you may want to consider buying a new or fully rebuilt YZ250.