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Start ShoppingMikuni FN102221-100 High Speed Jet - Precision Fuel Delivery for Power & Performance
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Description
Elevate your engine's performance with the Mikuni FN102221-100 High Speed Jet, engineered for precision fuel delivery and unmatched reliability in high-speed applications. This critical component ensures consistent power output and efficient combustion, making it a must-have for performance-oriented riders.
Key Features
- High-Speed Fuel Optimization: Designed for maximum airflow and fuel efficiency at high RPMs, delivering consistent power across all operating conditions.
- Durable Construction: Precision-machined from high-grade brass for long-lasting performance in harsh environments.
- Easy Installation: Compatible with standard Mikuni carburetor setups, simplifying integration into your powerplant.
- Adjustable Needle Jet: Fine-tune fuel delivery for custom performance tuning and rider preferences.
- Corrosion Resistance: Specialized coatings protect against moisture and chemical degradation for extended service life.
Why Choose This Product
Whether you're modifying a high-performance engine or optimizing a racing setup, the FN102221-100 offers unmatched precision and reliability. Its advanced design reduces fuel waste while maintaining peak engine efficiency, ensuring smoother throttle response and enhanced power delivery. Riders will appreciate the balance of durability and performance, making it an essential upgrade for those seeking to push their machine's limits.
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Elevate your engine's performance with the Mikuni FN102221-100 High Speed Jet, engineered for precision fuel delivery and unmatched reliability in high-speed applications. This critical component ensures consistent power output and efficient combustion, making it a must-have for performance-oriented riders.
Key Features
- High-Speed Fuel Optimization: Designed for maximum airflow and fuel efficiency at high RPMs, delivering consistent power across all operating conditions.
- Durable Construction: Precision-machined from high-grade brass for long-lasting performance in harsh environments.
- Easy Installation: Compatible with standard Mikuni carburetor setups, simplifying integration into your powerplant.
- Adjustable Needle Jet: Fine-tune fuel delivery for custom performance tuning and rider preferences.
- Corrosion Resistance: Specialized coatings protect against moisture and chemical degradation for extended service life.
Why Choose This Product
Whether you're modifying a high-performance engine or optimizing a racing setup, the FN102221-100 offers unmatched precision and reliability. Its advanced design reduces fuel waste while maintaining peak engine efficiency, ensuring smoother throttle response and enhanced power delivery. Riders will appreciate the balance of durability and performance, making it an essential upgrade for those seeking to push their machine's limits.
| SKU | GMC5EF1061 |
|---|---|
| MPN | FN102221-100 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various (Suzuki, Yamaha, Honda, Kawasaki) | Multiple 2-stroke and 4-stroke models with Mikuni TM/PN/VM series carbs | 1980-2025 |
| Suzuki | RM250, RMZ250, DRZ400 | 1990-2010 |
| Yamaha | YZ125, YZ250, WR250 | 2000-2020 |
Frequently Asked Questions
Fits Mikuni TM, PN, VM series carburetors that use main jets in #220 size. Confirm your carb model.
This is a high-speed (main) jet for the main circuit, not pilot.
Often paired with needle and pilot changes for full tuning, especially altitude or mod changes.
Proper sizing optimizes fuel delivery; too large can cause rich running or fouling.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Jet wrench or needle nose pliers
Pro Tips
- Remove carb bowl completely for access. Clean o-ring groove. Test run and check plug color after install.
Common Mistakes to Avoid
- Installing wrong jet size
- Not cleaning carb passages before install
- Over-tightening jet
Comparison vs Stock/OEM
Direct replacement or upgrade for stock/OEM jets in Mikuni-equipped bikes; precise machining for consistent flow
Improvements
- Better fuel atomization
- Easier tuning for mods/exhaust
- Corrosion-resistant brass
Considerations
- Must match engine needs; not a 'bigger is better' part
Durability & Warranty
Expected Lifespan
Indefinite with proper maintenance (jets rarely wear out)
Warranty
Limited lifetime (manufacturer defect only)
Maintenance
Inspect/clean during carb service; replace if clogged or damaged
What Others Are Saying
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