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Start ShoppingMIKUNI FN100606-142.5 Low Speed Jet - High-Performance Intake System for Powersports
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Description
Upgrade your powersports engine's performance with MIKUNI's FN100606-142.5 Low Speed Jet. This high-precision intake system delivers consistent fuel flow for smoother operation and increased power output.
Key Features
- Advanced Fuel Metering: Ensures precise fuel delivery for optimal engine performance across varying conditions.
- Durable Construction: Made from corrosion-resistant materials for long-lasting reliability in harsh environments.
- Easy Installation: Designed for straightforward integration with existing carburetor systems.
- Compatibility: Fits a wide range of powersports engines for versatile use.
Why Choose This Product
Whether you're riding off-road or on the track, this low-speed jet delivers consistent fuel flow to maintain peak engine efficiency. Its robust design withstands extreme temperatures and vibrations, while the precise metering ensures smooth throttle response and improved fuel economy. Perfect for riders seeking reliable performance without compromising on power.
SKU:
GM8323B379
MPN:
FN100606-142.5
Category:
Intake/Carb/Fuel System
Brand:
MIKUNI
Stock:
Only 3 left!
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Upgrade your powersports engine's performance with MIKUNI's FN100606-142.5 Low Speed Jet. This high-precision intake system delivers consistent fuel flow for smoother operation and increased power output.
Key Features
- Advanced Fuel Metering: Ensures precise fuel delivery for optimal engine performance across varying conditions.
- Durable Construction: Made from corrosion-resistant materials for long-lasting reliability in harsh environments.
- Easy Installation: Designed for straightforward integration with existing carburetor systems.
- Compatibility: Fits a wide range of powersports engines for versatile use.
Why Choose This Product
Whether you're riding off-road or on the track, this low-speed jet delivers consistent fuel flow to maintain peak engine efficiency. Its robust design withstands extreme temperatures and vibrations, while the precise metering ensures smooth throttle response and improved fuel economy. Perfect for riders seeking reliable performance without compromising on power.
| SKU | GM8323B379 |
|---|---|
| MPN | FN100606-142.5 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Honda | CRF450R | 2008-2024 |
| Kawasaki | KX450F | 2010-2024 |
| Yamaha | YZ450F | 2009-2024 |
| Suzuki | RMZ450 | 2012-2024 |
| KTM | 450 SX-F | 2006-2024 |
Frequently Asked Questions
Fits Mikuni TM/P series flat-slide carbs (e.g., TM40, TM42) common on 250-450cc 4-stroke MX bikes.
This is a main jet (low speed jet) for the main circuit, size 142.5.
Often paired with pilot jet and needle changes for complete tuning.
No, Mikuni jets have different threading; confirm your carb type.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Needle nose pliers
Pro Tips
- Use carb cleaner to remove old jet residue
- Label jets to avoid mix-ups during rejetting
Common Mistakes to Avoid
- Not cleaning carb bowl before install
- Dropping tiny jet into carb body
Comparison vs Stock/OEM
Direct replacement for OEM Mikuni jets; sized for performance tuning vs stock
Improvements
- Precise fuel delivery for modified engines
- Better response after airbox/exhaust mods
Considerations
- Must match engine mods; stock may lean out at altitude
Durability & Warranty
Expected Lifespan
Indefinite with proper care (metal jet)
Warranty
Limited lifetime from Mikuni
Maintenance
Inspect for debris/clogs during carb cleaning
What Others Are Saying
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