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Start ShoppingMikuni FN102221-140 High Speed Jet - Precision Performance Jet for Powersports Enthusiasts
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Description
Elevate your powersports performance with the Mikuni FN102221-140 High Speed Jet, engineered to deliver precise throttle response and maximum power output for high-performance engines. This premium jet is designed for riders who demand reliability and control in extreme conditions.
Key Features
- High-Speed Optimization: Advanced airflow management for enhanced throttle response and power delivery at high RPMs.
- Durable Construction: Precision-machined brass alloy ensures long-lasting performance in harsh environments.
- Easy Installation: Compatible with standard Mikuni carburetor setups for quick integration.
- Customizable Airflow: Adjustable jetting allows fine-tuning for specific engine modifications or riding conditions.
- Corrosion Resistance: Specialized coating protects against fuel and environmental contaminants.
Why Choose This Product
Whether you're modifying a high-output engine or seeking peak performance in racing conditions, the Mikuni FN102221-140 delivers unmatched precision. Its durable design withstands extreme temperatures and vibrations, while the customizable airflow settings give you complete control over power delivery. This jet is ideal for riders who prioritize reliability without compromising performance.
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Elevate your powersports performance with the Mikuni FN102221-140 High Speed Jet, engineered to deliver precise throttle response and maximum power output for high-performance engines. This premium jet is designed for riders who demand reliability and control in extreme conditions.
Key Features
- High-Speed Optimization: Advanced airflow management for enhanced throttle response and power delivery at high RPMs.
- Durable Construction: Precision-machined brass alloy ensures long-lasting performance in harsh environments.
- Easy Installation: Compatible with standard Mikuni carburetor setups for quick integration.
- Customizable Airflow: Adjustable jetting allows fine-tuning for specific engine modifications or riding conditions.
- Corrosion Resistance: Specialized coating protects against fuel and environmental contaminants.
Why Choose This Product
Whether you're modifying a high-output engine or seeking peak performance in racing conditions, the Mikuni FN102221-140 delivers unmatched precision. Its durable design withstands extreme temperatures and vibrations, while the customizable airflow settings give you complete control over power delivery. This jet is ideal for riders who prioritize reliability without compromising performance.
| SKU | GMD4CCD89C |
|---|---|
| MPN | FN102221-140 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Yamaha | XT250, TTR125, YZ125/250, WR250 | 1980-2025 |
| Various Honda | CRF150R, XR250R, XL250 | 1975-2025 |
| Various Kawasaki | KLX250, KX250 | 1980-2025 |
| Various Suzuki | DR-Z400, RM250 | 1970-2025 |
Frequently Asked Questions
Fits Mikuni VM26-VM34, BS34, BS36, PF30 series carburetors commonly found on Yamaha, Honda, Kawasaki, and Suzuki models.
This is a high-speed (main) jet for the main circuit, used above 1/4 throttle.
#140 is a standard size; larger numbers make it richer. Match to your altitude, mods, and exhaust.
Often yes, pair with needle, clip position, and pilot jet changes for best results.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Jet wrench or needle-nose pliers
Pro Tips
- Remove carb bowl first, note old jet size, clean with carb cleaner
Common Mistakes to Avoid
- Not cleaning carb passages before install
- Installing wrong jet size
Comparison vs Stock/OEM
Direct OEM-quality replacement from Mikuni (OEM supplier for many Japanese bikes)
Improvements
- Precision machined brass for consistent flow
- Corrosion resistant
- Enables precise fuel tuning vs fixed OEM jets
Considerations
- Aftermarket tuning required for performance gains
Durability & Warranty
Expected Lifespan
Indefinite with proper maintenance (does not wear out)
Warranty
Limited lifetime from Mikuni against defects
Maintenance
Inspect/clean during carb service every 20-50 hours
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