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Start ShoppingMIKUNI High Speed Jet FN102221-190 - Precision Fuel Delivery for Power Sports
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Description
Upgrade your powersports engine's performance with the MIKUNI High Speed Jet FN102221-190. This precision-engineered fuel jet delivers exceptional throttle response and fuel efficiency, perfect for riders demanding maximum power and reliability.
Key Features
- Precision Fuel Delivery: Optimizes air-fuel mixture for enhanced engine performance and fuel efficiency.
- Durable Construction: High-quality materials withstand extreme conditions for long-lasting reliability.
- Easy Installation: Designed for straightforward integration with existing fuel systems.
- Compatibility: Fits most MIKUNI carburetor models for versatile use across power sports vehicles.
Why Choose This Product
Whether you're tackling off-road trails or street racing, the MIKUNI High Speed Jet delivers consistent performance with minimal maintenance. Its advanced design ensures smooth power delivery across RPM ranges, while the robust build resists corrosion and wear. Ideal for mechanics and riders seeking to fine-tune engine output without compromising durability.
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Upgrade your powersports engine's performance with the MIKUNI High Speed Jet FN102221-190. This precision-engineered fuel jet delivers exceptional throttle response and fuel efficiency, perfect for riders demanding maximum power and reliability.
Key Features
- Precision Fuel Delivery: Optimizes air-fuel mixture for enhanced engine performance and fuel efficiency.
- Durable Construction: High-quality materials withstand extreme conditions for long-lasting reliability.
- Easy Installation: Designed for straightforward integration with existing fuel systems.
- Compatibility: Fits most MIKUNI carburetor models for versatile use across power sports vehicles.
Why Choose This Product
Whether you're tackling off-road trails or street racing, the MIKUNI High Speed Jet delivers consistent performance with minimal maintenance. Its advanced design ensures smooth power delivery across RPM ranges, while the robust build resists corrosion and wear. Ideal for mechanics and riders seeking to fine-tune engine output without compromising durability.
| SKU | GM8E6FFBD7 |
|---|---|
| MPN | FN102221-190 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various | Mikuni VM/PF/BS carbureted motorcycles, ATVs | 1980-2025 |
Frequently Asked Questions
The high speed (main) jet controls fuel flow at higher RPMs and throttle openings. A 190 jet is larger than stock on many applications, leaning out the mixture for better performance at high RPM.
You need to identify your carburetor model first, then determine your current jet size. A 190 is typically used for performance builds, altitude adjustments, or specific engine modifications. Consult your carburetor manual or a tuning guide.
The main jet primarily affects mid-range and high RPM performance. Idle is controlled by the pilot jet. However, overall mixture changes may require idle adjustment.
On some applications, the main jet can be accessed without full carburetor removal, but complete removal is recommended for proper cleaning and gasket replacement.
Each jet size number represents a specific orifice diameter. Higher numbers = larger orifice = more fuel flow. Typical increments are 5 sizes (e.g., 185, 190, 195, 200).
Installation Guide
Difficulty
Medium
Est. Time
45 min
Tools Required
- Carburetor removal tools (varies by application)
- Small screwdrivers (Phillips and flathead)
- Gasket scraper or plastic tool
- New gaskets/seals (recommended)
- Carburetor cleaner
- Shop towels
Pro Tips
- Use a carburetor gasket kit when doing this work
- Take photos during disassembly for reference
- Clean all passages with carburetor cleaner
- Jet size affects fuel mixture - may need to adjust needle clip position
- Test run and observe spark plug color to verify proper jetting
Common Mistakes to Avoid
- Over-tightening jet (can strip brass)
- Not replacing gaskets during reassembly
- Failing to clean carburetor passages before reassembly
- Incorrect carburetor reassembly sequence
- Not adjusting needle position after jet change
Durability & Warranty
Expected Lifespan
Indefinite if properly maintained; brass jets don't wear out
Warranty
Typically covered under OEM warranty if purchased from authorized dealer
Maintenance
No maintenance required; inspect for debris or damage during carburetor service
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