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Start ShoppingBOYESEN 679 M/C Reed Valve - High-Performance Intake System for Enhanced Motorcycle Power
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Description
Elevate your motorcycle's performance with BOYESEN's high-quality M/C Reed Valve. This advanced intake system optimizes airflow delivery to maximize horsepower, torque, and throttle response for a more dynamic riding experience.
Key Features
- Durable Construction: Precision-machined for long-lasting performance in demanding riding conditions
- Optimized Airflow: Engineered to enhance engine breathing for improved power output
- Easy Installation: Designed for straightforward integration with existing intake systems
- Universal Compatibility: Fits most motorcycle engines for versatile performance upgrades
Why Choose This Product
BOYESEN's M/C Reed Valve delivers exceptional airflow efficiency that enhances engine performance without compromising reliability. Riders benefit from smoother throttle response, increased horsepower, and consistent power delivery across RPM ranges. The durable construction ensures long-term performance, while the streamlined design reduces intake restrictions for optimal engine breathing. Whether you're modifying a sport bike or enhancing a street rider, this reed valve provides a cost-effective way to unlock your motorcycle's full potential.
SKU:
GM7F6E412B
MPN:
679
UPC:
804429003846
Category:
Intake/Carb/Fuel System
Brand:
BOYESEN
Stock:
Out of Stock
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Elevate your motorcycle's performance with BOYESEN's high-quality M/C Reed Valve. This advanced intake system optimizes airflow delivery to maximize horsepower, torque, and throttle response for a more dynamic riding experience.
Key Features
- Durable Construction: Precision-machined for long-lasting performance in demanding riding conditions
- Optimized Airflow: Engineered to enhance engine breathing for improved power output
- Easy Installation: Designed for straightforward integration with existing intake systems
- Universal Compatibility: Fits most motorcycle engines for versatile performance upgrades
Why Choose This Product
BOYESEN's M/C Reed Valve delivers exceptional airflow efficiency that enhances engine performance without compromising reliability. Riders benefit from smoother throttle response, increased horsepower, and consistent power delivery across RPM ranges. The durable construction ensures long-term performance, while the streamlined design reduces intake restrictions for optimal engine breathing. Whether you're modifying a sport bike or enhancing a street rider, this reed valve provides a cost-effective way to unlock your motorcycle's full potential.
| SKU | GM7F6E412B |
|---|---|
| MPN | 679 |
| UPC/GTIN | 804429003846 |
| Brand | BOYESEN |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Kawasaki | KX100 | 2004-2009 |
| Kawasaki | KX125 | 2000-2002 |
| Kawasaki | KX250 | 2000-2007 |
| Suzuki | RM80 | 1986-2003 |
| Suzuki | RM85 | 1989-2004 |
| Suzuki | RM250 | 2001-2008 |
| Yamaha | YZ85 | 1986-2008 |
| Yamaha | YZ125 | 2002-2007 |
| Yamaha | YZ250 | 2002-2007 |
Frequently Asked Questions
Yes, the Boyesen 679 is direct fit for 2002-2007 Yamaha YZ125.
No, the 679 is a complete reed valve kit with cage and petals.
Typically 2-5% improvement in throttle response and mid-to-top power on 2-strokes.
No, this is a 2-stroke reed valve kit only.
Installation Guide
Difficulty
Easy
Est. Time
20 min
Tools Required
- Socket set
- Torx bits
- Torque wrench
Pro Tips
- Clean all old gasket material thoroughly
- Torque to 5-7 ft-lbs
- Check reed petal gap before install
Common Mistakes to Avoid
- Not cleaning mating surfaces
- Over-torquing reed cage screws
Comparison vs Stock/OEM
Boyesen dual-stage design vs single-stage OEM
Improvements
- Faster reed response
- Better low-end torque
- Longer petal life (up to 2x)
Considerations
- Slightly higher cost than OEM replacements
Durability & Warranty
Expected Lifespan
20-40 hours of riding (2-3x stock)
Warranty
1 year manufacturer defect warranty
Maintenance
Inspect petals every 10 hours, replace when tips wear 50%
What Others Are Saying
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