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Start ShoppingBOYESEN 642 M/C Reed Valve - High-Performance Motorcycle Intake System
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Description
Upgrade your motorcycle's performance with the BOYESEN 642 M/C Reed Valve, engineered to optimize airflow and deliver enhanced power output for high-performance engines.
Key Features
- Durable Construction: Precision-machined for long-lasting performance in demanding riding conditions.
- Optimized Airflow: Advanced design ensures maximum airflow efficiency for improved engine response.
- Easy Installation: Compatible with standard intake systems for hassle-free upgrades.
- Brand Reputation: Trusted BOYESEN quality for reliable motorcycle performance parts.
Why Choose This Product
The BOYESEN 642 M/C Reed Valve is a must-have for riders seeking to unlock their engine's full potential. Its durable construction withstands high RPMs and extreme temperatures, while the optimized airflow design enhances throttle response and power delivery. Whether you're modifying your bike or maintaining peak performance, this reed valve offers a cost-effective solution for improved engine efficiency and reliability. Perfect for sport bikes, cruisers, and off-road motorcycles, this upgrade ensures smoother operation and better fuel economy without compromising durability.
SKU:
GM51FAFFC6
MPN:
642
UPC:
804429003396
Category:
Intake/Carb/Fuel System
Brand:
BOYESEN
Stock:
In Stock
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Upgrade your motorcycle's performance with the BOYESEN 642 M/C Reed Valve, engineered to optimize airflow and deliver enhanced power output for high-performance engines.
Key Features
- Durable Construction: Precision-machined for long-lasting performance in demanding riding conditions.
- Optimized Airflow: Advanced design ensures maximum airflow efficiency for improved engine response.
- Easy Installation: Compatible with standard intake systems for hassle-free upgrades.
- Brand Reputation: Trusted BOYESEN quality for reliable motorcycle performance parts.
Why Choose This Product
The BOYESEN 642 M/C Reed Valve is a must-have for riders seeking to unlock their engine's full potential. Its durable construction withstands high RPMs and extreme temperatures, while the optimized airflow design enhances throttle response and power delivery. Whether you're modifying your bike or maintaining peak performance, this reed valve offers a cost-effective solution for improved engine efficiency and reliability. Perfect for sport bikes, cruisers, and off-road motorcycles, this upgrade ensures smoother operation and better fuel economy without compromising durability.
| SKU | GM51FAFFC6 |
|---|---|
| MPN | 642 |
| UPC/GTIN | 804429003396 |
| Brand | BOYESEN |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Kawasaki | KX250F | 2004-2009 |
| Kawasaki | KX450F | 2006-2010 |
| Suzuki | RMZ250 | 2004-2008 |
| Suzuki | RMZ450 | 2005-2009 |
Frequently Asked Questions
Yes, the Boyesen 642 is direct fit for 2004-2009 Kawasaki KX250F models.
No, it's a bolt-on replacement for compatible models.
This is designed for 4-stroke motocross bikes like KX and RMZ models.
Typically 2-5% improvement in mid-to-top end power, depending on engine condition and jetting.
Installation Guide
Difficulty
Medium
Est. Time
45 min
Tools Required
- socket set
- torque wrench
- reed valve puller tool
Pro Tips
- Inspect and clean all surfaces before install
- Torque to 8-10 in-lbs
- Break in engine gently for first 10 minutes
Common Mistakes to Avoid
- Not cleaning mating surfaces
- Incorrect torque on reed cage screws
Comparison vs Stock/OEM
Replaces OEM single-stage carbon fiber reeds with dual-stage fiberglass design
Improvements
- Faster reed response
- Better mid-range torque
- Increased durability under high RPM
Considerations
- May require re-jetting for optimal performance
Durability & Warranty
Expected Lifespan
50-100 hours of racing use
Warranty
1 year manufacturer defect warranty
Maintenance
Inspect petals for cracks every 10-20 hours; replace if chipped
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