fits model: Yz250f, Yz. make: Yamaha. year: 2003–2009.

( Manufacturer Part Number: 5UL-12170-10-00 ), ( Part Type: Intake Cam Exhaust Camshaft )
This is a high-performance camshaft set for the 2003-2009 Yamaha YZ250F model, specifically the intake and exhaust camshafts with part numbers 5UL-12170-10-00 and 5UL-12180-10-00, respectively.
The intake camshaft (5UL-12170-10-00) is designed to optimize intake valve timing, promoting a more efficient intake stroke and increased power output. Its profile is finely tuned to provide superior low-end and mid-range performance, making it an excellent choice for riders who value responsive acceleration and smooth power delivery.
The exhaust camshaft (5UL-12180-10-00) is equally impressive, with a profile geared towards maximizing exhaust valve timing. This results in improved exhaust scavenging, allowing for more efficient combustion and a more powerful exhaust stroke. The net effect is a noticeable increase in top-end power and acceleration, ensuring that the YZ250F remains a formidable force on the track or trail.
Both camshafts are manufactured with precision and rigor, ensuring that they meet the exacting standards expected of Yamaha performance parts. The camshafts are made of high-quality materials that can withstand the rigors of high-speed racing and heavy use, ensuring long-lasting performance.
Installing these camshafts is a straightforward process, requiring only basic mechanical skills and suitable tools. The camshafts are designed to work seamlessly with the original YZ250F engine, ensuring compatibility and reliability.
In summary, this camshaft set is an excellent upgrade for the 2003-2009 Yamaha YZ250F. It promises improved engine performance across the powerband, with noticeable gains in both low-end and top-end power. With its precision-engineered design and durable construction, this camshaft set is an investment in improved performance and racetrack dominance.
Buying the 5UL-12170-10-00 and 5UL-12180-10-00 camshafts for your 2003-2009 Yamaha YZ250F can offer several benefits, as well as a few potential drawbacks.
Pros:1. Increased performance: The camshafts are designed to provide improved engine performance, potentially increasing horsepower and torque.
2. Enhanced throttle response: The cams may improve the engine's response to changes in throttle input, resulting in smoother and more responsive acceleration.
3. Potential longevity benefits: Higher-quality camshafts can help reduce engine wear and tear, potentially leading to a longer engine lifespan.
Cons:1. Cost: The camshafts can be quite expensive, especially compared to stock parts.
2. Installation complexity: Installing aftermarket camshafts can be a complex process, requiring specialized tools and knowledge.
3. Tuning requirements: The new camshafts may require additional tuning to ensure optimal performance, such as adjusting the ignition timing or fuel injection settings.
Conclusion:If you're looking for improved performance and throttle response from your 2003-2009 Yamaha YZ250F and are willing to invest in the cost and installation complexity, then the 5UL-12170-10-00 and 5UL-12180-10-00 camshafts could be a worthwhile upgrade. However, it's essential to carefully consider the pros and cons and weigh them against your specific needs and budget.
Recommendation:Before making a purchase, I would recommend consulting with a knowledgeable mechanic or engine builder to ensure that the camshafts are the right fit for your bike and riding style. Additionally, consider investing in professional installation to ensure the cams are installed correctly and tuned properly for optimal performance.
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Most of our offers are parts that removed from complete bikes. When installing any used parts new gaskets and or seals are always recommended.