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Start ShoppingMIKUNI FVM11/22-125 Round Main Jets - High-Performance Airflow Control for Racing & Off-Road
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Description
Upgrade your engine's performance with MIKUNI's high-precision round main jets designed for perfect fuel-air mixture control. These critical components ensure smooth power delivery and reliable operation across diverse riding conditions.
Key Features
- Exact Fitment: Precision-machined for MIKUNI FVM11/22-125 carburetors to ensure seamless integration and optimal airflow regulation.
- Superior Material: Durable brass construction resists corrosion and maintains consistent flow rates under extreme temperatures.
- Performance Optimization: Fine-tuned orifice sizes deliver precise fuel metering for enhanced throttle response and power output.
Why Choose This Product
These round main jets are essential for riders seeking maximum performance from their powersports engines. Their precise engineering ensures consistent fuel delivery, while the durable construction guarantees long-term reliability. Whether you're racing or exploring rugged terrain, these jets provide the precision needed to maintain peak engine efficiency.
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Upgrade your engine's performance with MIKUNI's high-precision round main jets designed for perfect fuel-air mixture control. These critical components ensure smooth power delivery and reliable operation across diverse riding conditions.
Key Features
- Exact Fitment: Precision-machined for MIKUNI FVM11/22-125 carburetors to ensure seamless integration and optimal airflow regulation.
- Superior Material: Durable brass construction resists corrosion and maintains consistent flow rates under extreme temperatures.
- Performance Optimization: Fine-tuned orifice sizes deliver precise fuel metering for enhanced throttle response and power output.
Why Choose This Product
These round main jets are essential for riders seeking maximum performance from their powersports engines. Their precise engineering ensures consistent fuel delivery, while the durable construction guarantees long-term reliability. Whether you're racing or exploring rugged terrain, these jets provide the precision needed to maintain peak engine efficiency.
| SKU | GM157B54A6 |
|---|---|
| MPN | FVM11/22-125 |
| Brand | MIKUNI |
| Category | Jets |
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Frequently Asked Questions
The main jet controls fuel flow at mid-range to full throttle. A larger number (like 125) means more fuel flow, while smaller numbers restrict fuel. Choosing the correct size depends on altitude, temperature, and engine modifications.
Start with the manufacturer's recommendation for your carburetor model and riding conditions. Adjust based on plug color (ideal is tan/brown), performance, and fuel consumption. Higher altitudes typically require smaller jets.
The FVM11/22-125 is designed for FVM11 and FVM22 series carburetors. Do not use in other Mikuni models without verification, as jet sizes and threads may differ.
Main jets don't wear out - they last indefinitely. You only change them for tuning purposes (altitude changes, engine modifications, performance adjustments) or if damaged.
Round main jets control full-throttle fuel delivery. Needle jets work with the needle clip to control mid-range throttle response. Both may need adjustment for optimal tuning.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small screwdriver or jet removal tool
- Clean workspace
- Carburetor removal (may be required depending on access)
Pro Tips
- Keep jets organized by size if testing multiple options
- Clean jet passages with carburetor cleaner before installation
- Document your baseline jetting before making changes
- Test ride after each jetting change to evaluate performance
- Store spare jets in a labeled container
Common Mistakes to Avoid
- Forcing the jet - they should slide out smoothly
- Not cleaning the jet passage before installing new jet
- Installing wrong jet size for your altitude/conditions
- Losing the small jet during removal
Durability & Warranty
Expected Lifespan
Indefinite - brass jets do not wear out under normal use
Warranty
Typically covered under manufacturer warranty if defective
Maintenance
No maintenance required - inspect for debris or damage before installation
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