MOTO TASSINARI WPS59-6675 Delta Reed Valve Triple V3140-794-3

( Brand: Moto Tassinari ), ( Manufacturer Part Number: WPS59-6675 ), ( Part Type: Valve ), ( Universal: No )

Review MOTO TASSINARI 59-6675 Delta Reed Valve Yam Triple Except

The **Moto Tassinari WPS59-6675 (59-6675 V3140-794-3 Delta Reed Valve for Yamaha Triple)** is a meticulously engineered, high-performance replacement valve designed to restore and enhance the functionality of classic Yamaha triple-cylinder engines, particularly those found in iconic models like the legendary Yamaha DT250, DT400, or other air-cooled triple-cylinder motorcycles. Crafted from premium materials, this **Delta Reed Valve** is a precision-engineered component that ensures optimal airflow, combustion efficiency, and overall engine performance. The valve features a robust, durable construction with a **stainless steel or high-grade aluminum body**, depending on the specific variant, ensuring resistance to corrosion, heat, and mechanical stress critical factors for long-term reliability in high-revving, high-temperature environments. Its **reed valve mechanism** operates with minimal friction, allowing for smooth and responsive intake and exhaust cycles, which is essential for maintaining the original engine s power delivery and throttle response. The **Delta design** distinguishes this valve from standard reed assemblies by incorporating a more aerodynamic and efficient shape, reducing turbulence and improving volumetric efficiency, particularly at higher RPM ranges where classic Yamaha triples excel. This valve is a direct-fit replacement, meticulously calibrated to match the original engine s specifications, including precise reed thickness, spring tension, and valve seating, ensuring seamless integration without the need for extensive modifications. Whether restoring a vintage Yamaha to its former glory or upgrading an existing engine for improved performance, this **Moto Tassinari WPS59-6675 valve** delivers a blend of authenticity and modern engineering, making it an indispensable part for enthusiasts seeking both reliability and performance. Built to withstand the demands of daily riding or track use, it exemplifies Moto Tassinari s commitment to quality and precision, ensuring that every cycle of the engine operates with the efficiency and power the Yamaha Triple was originally designed to deliver.

### **Pros and Cons of buying a Moto Tassinari WPS59-6675 (V3140-794-3 Delta Reed Valve for Yamaha Triples)**

#### **Pros**

1. **High Performance and Reliability** The Moto Tassinari WPS59-6675 is a high-quality aftermarket reed valve designed for Yamaha triple-cylinder engines (such as the YZF-R1, R6, or other triples). It is engineered to improve airflow, throttle response, and overall engine efficiency, making it a popular choice among performance enthusiasts.

2. **Precision Engineering** Moto Tassinari is a well-respected brand in the motorcycle performance industry, known for its precision-machined components. The Delta reed valve is designed to reduce backpressure, allowing for better exhaust scavenging and improved power delivery.

3. **Compatibility with Yamaha Triples** This specific reed valve is designed for Yamaha s triple-cylinder engines, ensuring a proper fit and optimal performance. It is often used in conjunction with other Moto Tassinari components (such as exhaust systems or camshafts) for a complete performance upgrade.

4. **Durability and Longevity** Made from high-quality materials, these reed valves are built to withstand high RPMs and extreme conditions, making them a durable choice for both street and track use.

5. **Enhanced Throttle Response** The improved airflow dynamics of the Delta reed valve help reduce lag, providing quicker throttle response, which is particularly beneficial in high-performance applications.

6. **Aftermarket Support and Tuning Potential** Since Moto Tassinari is a trusted brand, finding compatible parts, tuning support, and installation guidance is relatively straightforward. Many tuners and mechanics specialize in Moto Tassinari components, ensuring ease of installation and optimization.

7. **Cost-Effective Performance Upgrade** Compared to full engine rebuilds or custom exhaust systems, replacing the reed valve is a relatively affordable way to gain noticeable performance improvements.

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#### **Cons**

1. **Cost** While not excessively expensive, the Moto Tassinari WPS59-6675 is still a premium aftermarket part. For budget-conscious riders, this may be a significant investment, especially if other modifications are needed to fully realize its potential.

2. **Installation Complexity** Replacing a reed valve requires some mechanical skill and access to the engine s intake system. It may involve removing the airbox, carburetors (if applicable), or other components, which could be time-consuming for inexperienced riders.

3. **Potential for Voiding Warranty** If the motorcycle is still under manufacturer warranty, installing aftermarket reed valves may void the warranty, depending on the terms set by the dealership or manufacturer.

4. **Requires Additional Modifications for Full Benefits** While the reed valve itself improves performance, its effects are maximized when paired with other upgrades such as a performance exhaust, tuned ignition, or upgraded fuel system. Without these, the gains may be modest.

5. **Risk of Improper Installation** If not installed correctly, the reed valve could cause issues such as poor airflow, engine stumbling, or even damage to the engine. It is crucial to follow installation guidelines or seek professional help.

6. **Limited Use Case** This reed valve is specifically designed for Yamaha triples. Riders with different engine configurations (e.g., single-cylinder, inline-four, or other brands) will not benefit from this part.

7. **Maintenance Considerations** High-performance reed valves may require more frequent inspection and cleaning to ensure optimal function, especially in dusty or harsh riding conditions.

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### **Conclusion**

The Moto Tassinari WPS59-6675 Delta reed valve is an excellent choice for Yamaha triple-cylinder engine owners looking to enhance performance, throttle response, and overall engine efficiency. Its precision engineering, reliability, and compatibility with other Moto Tassinari components make it a strong option for enthusiasts willing to invest in aftermarket upgrades. However, the cost, installation complexity, and potential warranty implications should be carefully considered before purchasing.

For riders who prioritize performance gains and are prepared to invest in complementary modifications (such as exhaust systems or tuning), this reed valve is highly recommended. Those on a tight budget or with limited mechanical experience may find it more practical to start with simpler upgrades before committing to a reed valve swap.

If you own a Yamaha triple-cylinder motorcycle (e.g., YZF-R1, R6, or similar) and are looking to improve power delivery and throttle response, the Moto Tassinari WPS59-6675 Delta reed valve is a worthwhile investment. Ensure you have the necessary skills or access to professional help for installation, and consider pairing it with other performance parts for the best results. For non-Yamaha triples or riders seeking a more budget-friendly solution, this part may not be the best fit.

Details:

1999-2004YamahaSV 1200 Wave Runner SUV, 2000 2002YamahaGP A R, 2000 Yamaha's XL, 2001 Yamaha's XLT, 2016 YamahaV1 Sport, 2016 2018YamahaVX Cruiser Wave Runner, Deluxe Limited 2017 2018YamahaEX 1049, 1049 Deluxe, Sport. Longer reed petal life. Features: Patent pending snap together cage design with symmetric reed petals. Patent pending reed tip shape accelerates the air mixture over tips.

These items are designed exclusively for closed course competition use ONLY. Moto Tassinari 59-6675 V3140-794-3 W/C DELTA 3 REED VALVE YAM TRIPLE EXCEPT XLT / GPR. Dramatic horsepower increase. Higher efficiency improved economy.

This fitment information is based upon the stock version of Motorcycle or unit referenced and any accessory added other modification could invalidate quick reference provided.

part #: wps596675 prices

• $311.55-$348.95

specifications jetskiintakeez:

• for makes: Yamaha
• brand: Moto Tassinari
• mpn: Wps59-6675
• part type: Valve
• universal: No

seller jetskiintakeez:

• city: Omaha, NE
• rating: 100.0%
• # reviews: 4261

returns jetskiintakeez:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

general jetskiintakeez:

• Parts Accessories > Personal Watercraft Parts > Intake Fuel Systems
• condition: New

offer jetskiintakeez:

• options: Ship-to-home
• quantity: 2
• started: April 12, 2026
• sold: 0
• availability: In Stock

payments jetskiintakeez:

• other
• credit card: Discover
• wallet: Apple-pay

shipping jetskiintakeez:

• class: Standard, Expedited
• cost: $0.00
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery, USPS First Class, USPS Priority Mail, UPS Ground
• carrier: FedEx, USPS, UPS
• transit: 3-5 Days

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