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Start ShoppingMikuni FN102221-50 High Speed Jet - Precision Fuel Delivery for Power Sports Enthusiasts
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Description
Elevate your power sports experience with the Mikuni FN102221-50 High Speed Jet, engineered for precision fuel delivery and unmatched performance. This advanced jet system ensures optimal engine efficiency, delivering consistent power output while maintaining reliability in high-speed applications.
Key Features
- High-Speed Fuel Optimization: Designed for maximum performance in high-RPM environments, ensuring smooth power delivery and fuel efficiency.
- Durable Construction: Precision-machined brass components withstand extreme temperatures and corrosive environments for long-lasting reliability.
- Easy Maintenance: Simple adjustment capabilities allow for quick tuning and optimal fuel-air mixture calibration.
- Universal Compatibility: Fits a wide range of power sports engines, making it a versatile upgrade for ATVs, dirt bikes, and more.
- Enhanced Responsiveness: Fine-tuned jetting improves throttle response and acceleration for dynamic riding conditions.
Why Choose This Product
Whether you're tackling off-road trails or racing on the track, the Mikuni FN102221-50 High Speed Jet offers a perfect balance of power, efficiency, and durability. Its precision engineering ensures your engine runs at peak performance while minimizing wear, making it an essential upgrade for serious riders. The straightforward design also simplifies maintenance, saving you time and effort during routine servicing.
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Elevate your power sports experience with the Mikuni FN102221-50 High Speed Jet, engineered for precision fuel delivery and unmatched performance. This advanced jet system ensures optimal engine efficiency, delivering consistent power output while maintaining reliability in high-speed applications.
Key Features
- High-Speed Fuel Optimization: Designed for maximum performance in high-RPM environments, ensuring smooth power delivery and fuel efficiency.
- Durable Construction: Precision-machined brass components withstand extreme temperatures and corrosive environments for long-lasting reliability.
- Easy Maintenance: Simple adjustment capabilities allow for quick tuning and optimal fuel-air mixture calibration.
- Universal Compatibility: Fits a wide range of power sports engines, making it a versatile upgrade for ATVs, dirt bikes, and more.
- Enhanced Responsiveness: Fine-tuned jetting improves throttle response and acceleration for dynamic riding conditions.
Why Choose This Product
Whether you're tackling off-road trails or racing on the track, the Mikuni FN102221-50 High Speed Jet offers a perfect balance of power, efficiency, and durability. Its precision engineering ensures your engine runs at peak performance while minimizing wear, making it an essential upgrade for serious riders. The straightforward design also simplifies maintenance, saving you time and effort during routine servicing.
| SKU | GM64D9CA70 |
|---|---|
| MPN | FN102221-50 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Yamaha | XT250, WR250, YZ250 (select models) | 1980-2025 |
| Various Honda | CRF250R, XR250R | 1990-2025 |
| Various Kawasaki | KX250, KLX250 | 1985-2025 |
| Various Suzuki | RM250, DR-Z250 | 1975-2025 |
Frequently Asked Questions
Fits most Mikuni round slide carbs like BS34, BS36, VM34, VM36 series used on Yamaha, Honda, Kawasaki, Suzuki 2-stroke and 4-stroke bikes.
This is a high speed (main) jet, size #220. Used for main circuit fuel delivery at wide open throttle.
Recommended to purchase a full range of jets (160-240 sizes) for proper tuning after airbox/exhaust mods.
Correct sizing can optimize fuel delivery for more power, but requires proper tuning with pilot jet, needle, and air screw.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Needle nose pliers
Pro Tips
- Remove carburetor float bowl completely for access. Clean all jets and passages with carb cleaner. Test jet flow with compressed air.
Common Mistakes to Avoid
- Not cleaning carb passages before install
- Installing wrong size jet
Comparison vs Stock/OEM
OEM jets often undersized for modified engines; Mikuni provides precise brass jets for custom tuning
Improvements
- Better fuel atomization
- Optimized for performance intakes/exhausts
- Consistent flow rates
Considerations
- Requires dyno or plug chop tuning for best results
Durability & Warranty
Expected Lifespan
Indefinite with proper maintenance (clean every 20-50 hours)
Warranty
Limited lifetime against manufacturing defects
Maintenance
Remove and clean with carb cleaner every service interval or when tuning
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