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Start ShoppingMIKUNI FVM34/05-O-4 Needle Jet - Precision Fuel Delivery for Carburetors
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Description
Upgrade your carburetor's fuel delivery system with the MIKUNI FVM34/05-O-4 Needle Jet. This precision-engineered component ensures accurate fuel metering for improved throttle response, consistent power delivery, and smoother engine operation across a wide range of RPMs.
Key Features
- Exact Fuel Metering: Precisely calibrated orifice for optimal air-fuel mixture, enhancing engine performance and fuel efficiency.
- Universal Compatibility: Designed for MIKUNI carburetor systems, ensuring seamless integration with existing fuel delivery components.
- Durable Construction: High-grade brass alloy withstands extreme temperatures and corrosion for long-lasting reliability.
- Easy Installation: Plug-and-play design requires minimal adjustments, saving time and labor during maintenance.
Why Choose This Product
Whether you're tuning a racing motorcycle, off-road vehicle, or classic powersport machine, this needle jet delivers consistent fuel flow for smoother acceleration, better throttle control, and reduced engine wear. Its precision engineering ensures compatibility with stock and modified carburetor setups, making it a must-have for riders who demand peak performance from their engines.
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Upgrade your carburetor's fuel delivery system with the MIKUNI FVM34/05-O-4 Needle Jet. This precision-engineered component ensures accurate fuel metering for improved throttle response, consistent power delivery, and smoother engine operation across a wide range of RPMs.
Key Features
- Exact Fuel Metering: Precisely calibrated orifice for optimal air-fuel mixture, enhancing engine performance and fuel efficiency.
- Universal Compatibility: Designed for MIKUNI carburetor systems, ensuring seamless integration with existing fuel delivery components.
- Durable Construction: High-grade brass alloy withstands extreme temperatures and corrosion for long-lasting reliability.
- Easy Installation: Plug-and-play design requires minimal adjustments, saving time and labor during maintenance.
Why Choose This Product
Whether you're tuning a racing motorcycle, off-road vehicle, or classic powersport machine, this needle jet delivers consistent fuel flow for smoother acceleration, better throttle control, and reduced engine wear. Its precision engineering ensures compatibility with stock and modified carburetor setups, making it a must-have for riders who demand peak performance from their engines.
| SKU | GMA548A6C0 |
|---|---|
| MPN | FVM34/05-O-4 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | Carbureted motorcycles (e.g., Yamaha YZ, Suzuki RM, Honda CR series) | 1985-2023 |
| Kawasaki | KX series | 1990-2010 |
Frequently Asked Questions
Fits Mikuni VM34 series carburetors, specifically for needle jet position in main jet circuit.
No, this is a genuine Mikuni aftermarket replacement needle jet.
Yes, changing needle jet affects fuel flow; test and adjust main jet and needle clip position.
The '05' indicates 5.0mm OD, 'O-4' is the specific bore taper for richer mid-range fueling.
Installation Guide
Difficulty
Easy
Est. Time
15 min
Tools Required
- Small flathead screwdriver
- Needle nose pliers
- Carb cleaner
Pro Tips
- Soak carb in cleaner first. Use pliers with cloth to avoid scratching. Always rejet after changes for proper air/fuel mix.
Common Mistakes to Avoid
- Damaging the jet threads during removal
- Not cleaning carb passages before install
Comparison vs Stock/OEM
Direct replacement for worn OEM needle jets in Mikuni carbs
Improvements
- Precise fuel metering for better throttle response
- Restores factory mid-range fueling
Considerations
- Genuine Mikuni matches OEM specs exactly
Durability & Warranty
Expected Lifespan
Indefinite with proper maintenance; lasts full carb life
Warranty
Mikuni lifetime warranty against defects
Maintenance
Inspect for wear/clogs during annual carb cleaning
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