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Start ShoppingMIKUNI FVM22/210-37.5 Bleed Pilot Jets - Precision Fuel Mixture Control for Carburetors
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Description
The MIKUNI FVM22/210-37.5 Bleed Pilot Jets are critical components for achieving precise fuel-air mixture control in carbureted engines. These high-quality jets ensure consistent performance, especially at low RPMs, by allowing controlled air flow through the bleed hole to prevent fuel starvation and maintain stable engine operation.
Key Features
- Precision Fuel Flow Calibration: Engineered for optimal fuel delivery across a wide range of operating conditions.
- Universal Compatibility: Designed to fit most MIKUNI carburetor models with standard pilot jet ports.
- Durable Brass Construction: Resists corrosion and maintains structural integrity under high-temperature environments.
- Seamless Installation: Easy to replace without requiring specialized tools or modifications.
Why Choose This Product
These bleed pilot jets offer riders enhanced throttle response, smoother idling, and improved fuel efficiency. The carefully calibrated orifice size ensures proper fuel metering, reducing the risk of engine hesitation or flooding. Their robust construction ensures long-lasting performance, making them a reliable upgrade for off-road, motocross, and classic motorcycle applications.
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The MIKUNI FVM22/210-37.5 Bleed Pilot Jets are critical components for achieving precise fuel-air mixture control in carbureted engines. These high-quality jets ensure consistent performance, especially at low RPMs, by allowing controlled air flow through the bleed hole to prevent fuel starvation and maintain stable engine operation.
Key Features
- Precision Fuel Flow Calibration: Engineered for optimal fuel delivery across a wide range of operating conditions.
- Universal Compatibility: Designed to fit most MIKUNI carburetor models with standard pilot jet ports.
- Durable Brass Construction: Resists corrosion and maintains structural integrity under high-temperature environments.
- Seamless Installation: Easy to replace without requiring specialized tools or modifications.
Why Choose This Product
These bleed pilot jets offer riders enhanced throttle response, smoother idling, and improved fuel efficiency. The carefully calibrated orifice size ensures proper fuel metering, reducing the risk of engine hesitation or flooding. Their robust construction ensures long-lasting performance, making them a reliable upgrade for off-road, motocross, and classic motorcycle applications.
| SKU | GM5F8C33DF |
|---|---|
| MPN | FVM22/210-37.5 |
| Brand | MIKUNI |
| Category | Jets |
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Frequently Asked Questions
A bleed pilot jet controls fuel flow to the pilot circuit in a carburetor. The 'bleed' design allows air to mix with fuel for better atomization at low throttle positions, improving idle quality and low-speed throttle response.
Signs include poor idle quality, hesitation at low throttle, or difficulty starting. Changing altitude or air temperature may require jet size adjustments. Consult your carburetor tuning guide for your specific application.
Larger numbers = richer mixture (more fuel). The 37.5 size is a mid-range pilot jet. Going up one size richens the mixture; going down leans it out. Changes typically affect idle and low-speed performance.
No. This jet is specifically designed for FVM22 carburetors. Using incorrect jets can cause poor performance or damage. Always verify carburetor model and jet compatibility.
Usually yes. Most applications require carburetor removal and disassembly to access pilot jets. Some bikes may allow access without full removal - check your service manual.
Installation Guide
Difficulty
Medium
Est. Time
15 min
Tools Required
- Small screwdriver (jet removal tool or precision screwdriver)
- Clean workspace
- Carburetor cleaning supplies (optional but recommended)
Pro Tips
- Soak carburetor in cleaner before jet removal for easier access
- Use proper jet removal tool rather than pliers to avoid damage
- Inspect jet passages for debris before reinstalling
- Keep jets organized by size to avoid mixing them up
- Document original jet configuration before making changes
Common Mistakes to Avoid
- Stripping the small brass jet during removal
- Not cleaning the jet passage before installation
- Overtightening the jet (can crack brass)
- Installing wrong jet size - verify part number carefully
Durability & Warranty
Expected Lifespan
Indefinite if not damaged - brass jets don't wear out under normal use
Warranty
Typically none - OEM parts sold as-is
Maintenance
No maintenance required - jets are passive components
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