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Start ShoppingMikuni FN102221-145 High Speed Jet - Precision Performance Jet for Powersports Enthusiasts
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Description
Elevate your powersports performance with the Mikuni FN102221-145 High Speed Jet, designed for maximum airflow efficiency and consistent power delivery. This precision-engineered jet ensures optimal fuel-air mixture for high-speed operation across a range of engines.
Key Features
- High-Speed Airflow Optimization: Advanced design for enhanced throttle response and power output at higher RPMs.
- Durable Stainless Steel Construction: Resists corrosion and maintains precision in demanding environments.
- Easy Maintenance Compatibility: Simple adjustment and cleaning for hassle-free upkeep.
- Universal Fitment: Designed for seamless integration with Mikuni carburetor systems.
Why Choose This Product
Whether you're racing or riding, this jet delivers reliable performance with minimal maintenance. Its corrosion-resistant materials ensure long-term durability, while the precise airflow control enhances engine efficiency. Perfect for riders seeking consistent power delivery without compromising on reliability.
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Elevate your powersports performance with the Mikuni FN102221-145 High Speed Jet, designed for maximum airflow efficiency and consistent power delivery. This precision-engineered jet ensures optimal fuel-air mixture for high-speed operation across a range of engines.
Key Features
- High-Speed Airflow Optimization: Advanced design for enhanced throttle response and power output at higher RPMs.
- Durable Stainless Steel Construction: Resists corrosion and maintains precision in demanding environments.
- Easy Maintenance Compatibility: Simple adjustment and cleaning for hassle-free upkeep.
- Universal Fitment: Designed for seamless integration with Mikuni carburetor systems.
Why Choose This Product
Whether you're racing or riding, this jet delivers reliable performance with minimal maintenance. Its corrosion-resistant materials ensure long-term durability, while the precise airflow control enhances engine efficiency. Perfect for riders seeking consistent power delivery without compromising on reliability.
| SKU | GMB77C1A9A |
|---|---|
| MPN | FN102221-145 |
| Brand | MIKUNI |
| Category | Jets |
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Frequently Asked Questions
The high speed (main) jet controls fuel flow at higher RPMs and throttle openings. It affects mid-range and top-end performance, fuel economy, and engine response.
Signs of incorrect jetting include: poor throttle response, black smoke (too rich), hesitation (too lean), or poor fuel economy. Dyno testing or experienced tuning is recommended.
No. Jet compatibility depends on your specific Mikuni carburetor model. Verify your carburetor model number before purchasing.
Often yes. Air filter upgrades, exhaust modifications, or engine tuning typically require carburetor rejetting for optimal performance.
Higher numbers = larger orifice = more fuel flow. A 145 jet allows more fuel than a 140. Typical adjustments are in 2.5-5 size increments.
Installation Guide
Difficulty
Easy
Est. Time
15 min
Tools Required
- Screwdriver (typically Phillips or flat head)
- Small wrench or socket (for carburetor bowl bolt)
- Gasket scraper or plastic tool
Pro Tips
- Keep fuel system clean when working on carburetors
- Take photos before disassembly for reference
- Inspect O-rings and gaskets; replace if worn
- Test run after installation to verify proper jetting
Common Mistakes to Avoid
- Over-tightening the jet (can damage brass)
- Not draining fuel before disassembly
- Losing small O-rings or gaskets
- Installing jet upside down
Durability & Warranty
Expected Lifespan
Indefinite if not damaged; jets don't wear out but may become clogged
Warranty
Typically covered under manufacturer defect warranty; check with retailer
Maintenance
Keep carburetor clean; inspect for debris or varnish buildup
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