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Start ShoppingMikuni FN102221-135 High Speed Jet - Precision Fuel Delivery for Power & Performance
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Description
Elevate your power sports experience with the Mikuni FN102221-135 High Speed Jet, engineered for unmatched performance and precision. This advanced fuel injection system ensures optimal power delivery while maintaining reliability under extreme conditions.
Key Features
- High-Speed Fuel Delivery: Advanced engineering for maximum power output in high-performance applications.
- Durable Construction: Built to withstand harsh environments with corrosion-resistant materials.
- Easy Maintenance: Simplified design for quick adjustments and routine servicing.
- Compatibility: Designed for seamless integration with modern power sports equipment.
Why Choose This Product
Whether you're racing or exploring, the Mikuni FN102221-135 delivers consistent performance with its precision fuel delivery system. Its durable build ensures long-term reliability, while the user-friendly design saves time during maintenance. Perfect for riders who demand peak performance without compromising on durability.
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Elevate your power sports experience with the Mikuni FN102221-135 High Speed Jet, engineered for unmatched performance and precision. This advanced fuel injection system ensures optimal power delivery while maintaining reliability under extreme conditions.
Key Features
- High-Speed Fuel Delivery: Advanced engineering for maximum power output in high-performance applications.
- Durable Construction: Built to withstand harsh environments with corrosion-resistant materials.
- Easy Maintenance: Simplified design for quick adjustments and routine servicing.
- Compatibility: Designed for seamless integration with modern power sports equipment.
Why Choose This Product
Whether you're racing or exploring, the Mikuni FN102221-135 delivers consistent performance with its precision fuel delivery system. Its durable build ensures long-term reliability, while the user-friendly design saves time during maintenance. Perfect for riders who demand peak performance without compromising on durability.
| SKU | GM79F276CC |
|---|---|
| MPN | FN102221-135 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Yamaha | XT250, TT-R230, YZ models with Mikuni VM carburetors | 1980-2025 |
| Various Honda | CRF150R, XR250R, TRX models with Mikuni carbs | 1990-2025 |
| Various Kawasaki | KLX250, KX models with VM carbs | 1985-2025 |
Frequently Asked Questions
Fits most Mikuni VM series round slide carbs (VM26, VM30, BS34, BS38) in the high speed/main jet position.
This is a high speed (main) jet for larger throttle openings. Pilot jets are smaller, like BS30/721.
Yes, #135 is larger than stock #130-132 in many bikes, enriching the main circuit for more power or altitude compensation.
Often paired with needle/mains adjustments; test plug chops recommended after install.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Jet wrench or needle nose pliers
Pro Tips
- Count turns when removing old jet to match idle mixture
- Use carb cleaner to inspect jet orifice
Common Mistakes to Avoid
- Dropping the tiny jet into carb body
- Not cleaning carb passages before install
Comparison vs Stock/OEM
OEM jets are often smaller; this #135 Mikuni is genuine replacement or upgrade for richer mid-high RPM fueling
Improvements
- Better top-end power
- Corrects lean conditions at elevation
- Precision machined brass
Considerations
- May require ECU/airbox mods for max benefit on EFI conversions
Durability & Warranty
Expected Lifespan
Indefinite with proper fuel; cleans/replaces as needed
Warranty
Limited lifetime from Mikuni against defects
Maintenance
Inspect during carb service; replace if clogged
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