fits model: Yfz450, Se. make: Yamaha. year: 2007–2008.

( Brand: Procom ), ( Manufacturer Part Number: 4073-P166724-ATV )
The **ProCom 4073-P166724 ATV Performance CDI Ignition System** is a high-performance, direct-replacement ignition module meticulously engineered to elevate the power, reliability, and throttle response of the **2007 2008 Yamaha YFZ450 SE ATV**. Designed with precision and built to exceed OEM standards, this advanced CDI (Capacitor Discharge Ignition) unit replaces the stock ignition system, delivering a noticeable boost in horsepower, smoother acceleration, and enhanced overall engine performance. Crafted from durable, high-grade materials, the ProCom 4073-P166724 features a robust internal circuit board with optimized capacitance and spark timing, ensuring consistent, high-energy sparks that ignite the air-fuel mixture more efficiently. This results in improved combustion, reduced hesitation, and a more responsive throttle ideal for off-road enthusiasts who demand peak performance from their Yamaha YFZ450 SE. The unit is fully compatible with the vehicle s electrical system, offering seamless integration without the need for additional modifications, and is backed by ProCom s reputation for quality and durability. Whether tackling rough terrain, towing heavy loads, or pushing the limits of speed, this performance CDI module ensures your ATV delivers the power and reliability you expect, season after season.
### Pros and Cons of buying a Procom 4073-P166724 ATV Performance CDI for a 2007-2008 Yamaha YFZ450 SE ATV
#### **Pros:**1. **Enhanced Performance:** The Procom ATV Performance CDI is designed to improve throttle response and power delivery, making your Yamaha YFZ450 SE feel more responsive and capable, especially in off-road conditions.
2. **Compatibility:** This CDI is specifically engineered for Yamaha ATVs, including the YFZ450 SE models from 2007-2008. It is a direct replacement for the stock CDI, ensuring a seamless fit without modifications.
3. **Durability:** Procom is a well-known brand in the ATV and motorcycle performance industry, known for producing high-quality, durable components that can withstand the demands of off-road use.
4. **Ease of Installation:** The installation process is straightforward, typically requiring only basic tools. Many users report being able to complete the swap in under an hour, reducing downtime.
5. **Improved Reliability:** The upgraded CDI can help prevent misfires, rough idling, and other electrical issues that may arise from wear or failure in the stock unit, leading to a more reliable engine.
6. **Cost-Effective Upgrade:** Compared to other performance modifications, such as engine swaps or major tune-ups, the Procom CDI is relatively inexpensive. It offers a significant performance boost without a large financial investment.
7. **Positive User Feedback:** Many owners of Yamaha YFZ450 SE models have reported noticeable improvements in power, smoothness, and overall engine performance after installing this CDI.
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#### **Cons:**1. **Limited Power Gain:** While the Procom CDI improves throttle response and smoothness, it may not provide a dramatic increase in horsepower or torque. Expect more of a refinement rather than a significant power surge.
2. **Potential for Overheating:** In extreme conditions or with aggressive riding, the upgraded CDI may generate more heat than the stock unit. This could lead to premature wear if the engine is not adequately cooled or if the CDI is not properly maintained.
3. **Compatibility Concerns:** Although the Procom CDI is designed for Yamaha YFZ450 SE models, there is always a slight risk of compatibility issues, especially if the unit has been modified or if there are aftermarket components interfering with its operation.
4. **Warranty Void:** Installing an aftermarket CDI may void the manufacturer s warranty on your Yamaha ATV, particularly if the dealership discovers the modification during service.
5. **Mixed Results with Stock Ignition Coils:** In some cases, the Procom CDI may not perform optimally with the stock ignition coils. Pairing it with upgraded coils (such as those from Procom or other reputable brands) could be necessary for the best results, adding to the cost.
6. **Learning Curve for Tuning:** While the CDI itself is easy to install, achieving the best performance may require tuning the engine s ignition timing or fuel mixture. This could involve additional modifications or adjustments, such as installing a performance air filter or upgrading the carburetor.
7. **Risk of Voiding Warranty on Performance Parts:** If you plan to use this CDI in competition or for aggressive riding, some insurance providers or warranty plans may not cover damage resulting from such use.
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### **Conclusion:**The Procom 4073-P166724 ATV Performance CDI is a worthwhile upgrade for owners of the 2007-2008 Yamaha YFZ450 SE who are looking to enhance throttle response, smoothness, and overall engine reliability. It is a cost-effective and relatively simple modification that can significantly improve the riding experience without requiring major mechanical work. However, it is not a "miracle fix" for power or a replacement for more extensive upgrades like engine swaps or full tune-ups.
If you prioritize a refined, responsive engine and are willing to invest a small amount for a noticeable improvement, this CDI is a solid choice. For those seeking dramatic power gains or planning to use the ATV in extreme conditions, pairing this CDI with other performance parts (such as upgraded coils, air filters, or carburetors) may yield even better results.
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### **Recommendation:**If you are a Yamaha YFZ450 SE owner looking to breathe new life into your ATV s engine, the Procom 4073-P166724 CDI is highly recommended. Here s how to approach the purchase and installation:
1. **Verify Compatibility:** Double-check that this specific model (4073-P166724) is indeed compatible with your 2007-2008 YFZ450 SE. Cross-reference with Yamaha s service manual or consult with a trusted ATV mechanic if unsure.
2. **Consider Pairing with Upgraded Coils:** To maximize performance, consider upgrading the ignition coils as well. Procom offers compatible coils that work seamlessly with their CDI.
3. **Prepare for Installation:** Gather the necessary tools (socket set, wire cutters/strippers, and possibly a multimeter for testing) and follow the installation instructions carefully. If you re unsure about any step, consult a professional.
4. **Test and Tune:** After installation, take your ATV for a test ride and monitor the engine s performance. If you notice rough idling or misfires, you may need to adjust the ignition timing or fuel mixture.
5. **Maintain Regularly:** Like any performance part, the Procom CDI will perform best with regular maintenance. Keep an eye on electrical connections, ensure the unit is not overheating, and address any issues promptly.
6. **Budget for Additional Upgrades:** While the CDI alone will improve your ATV s performance, consider investing in complementary upgrades (e.g., a performance air filter, upgraded exhaust, or a tune) to further enhance power and responsiveness.
In summary, the Procom 4073-P166724 CDI is a smart, low-risk upgrade that delivers tangible benefits for the Yamaha YFZ450 SE. With proper installation and maintenance, it can extend the life of your engine and make your ATV more enjoyable to ride.
Procom Performance CDI for 2007 - 2008 Yamaha YFZ450 SE ATV: This increases rev 1,000 rpm over stock. This is helpful if you are buying multiple items.: Brand: Procom, model Number: 4073-P166724-ATV. Parts without fitment are to be assumed universal and may require vehicle modification.
Compatibility: Years: Make: model: Application: Notes: 2007 - 2008 YamahaYFZ450 SE, 2004. I need to exchange an item.