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Start ShoppingMIKUNI FN151067-45 Bleed Pilot Jets - Precision Fuel System Component for Racing & Off-Road
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Description
Upgrade your MIKUNI carburetor's fuel delivery system with these precision-engineered bleed pilot jets, designed to deliver consistent fuel flow and improved throttle response for maximum engine performance.
Key Features
- Exact Fitment: Precision-machined for seamless compatibility with MIKUNI carburetors, ensuring optimal fuel metering.
- Enhanced Flow Control: Optimized orifice size delivers precise fuel-air mixture for improved engine efficiency and power output.
- Durable Construction: Made from high-grade brass for long-lasting performance in demanding off-road and racing environments.
- Easy Installation: Simple replacement design saves time and labor during carburetor maintenance or tuning.
Why Choose This Product
These bleed pilot jets are essential for riders seeking to fine-tune their engine's fuel delivery for better acceleration, fuel efficiency, and overall performance. Whether you're competing in motorsports or tackling rugged terrain, these jets provide reliable fuel metering to keep your engine running smoothly under extreme conditions. Their durable build ensures consistent performance through thousands of miles of use, making them a trusted choice for serious powersports enthusiasts.
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Upgrade your MIKUNI carburetor's fuel delivery system with these precision-engineered bleed pilot jets, designed to deliver consistent fuel flow and improved throttle response for maximum engine performance.
Key Features
- Exact Fitment: Precision-machined for seamless compatibility with MIKUNI carburetors, ensuring optimal fuel metering.
- Enhanced Flow Control: Optimized orifice size delivers precise fuel-air mixture for improved engine efficiency and power output.
- Durable Construction: Made from high-grade brass for long-lasting performance in demanding off-road and racing environments.
- Easy Installation: Simple replacement design saves time and labor during carburetor maintenance or tuning.
Why Choose This Product
These bleed pilot jets are essential for riders seeking to fine-tune their engine's fuel delivery for better acceleration, fuel efficiency, and overall performance. Whether you're competing in motorsports or tackling rugged terrain, these jets provide reliable fuel metering to keep your engine running smoothly under extreme conditions. Their durable build ensures consistent performance through thousands of miles of use, making them a trusted choice for serious powersports enthusiasts.| SKU | GM444DCDE1 |
|---|---|
| MPN | FN151067-45 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various | Mikuni-equipped motorcycles/ATVs (e.g., Yamaha YZ, Honda XR/CRF, Kawasaki KX) | 1980-2025 |
Frequently Asked Questions
A bleed pilot jet is a small carburetor component that controls fuel flow through the pilot circuit. The 'bleed' design includes a small hole that allows air to mix with fuel, affecting the fuel-air ratio at idle and low throttle positions.
Jet sizing depends on your specific carburetor model, altitude, temperature, and engine modifications. Consult your carburetor manual, manufacturer recommendations, or work with a carburetor tuning specialist. The FN151067-45 designation indicates a specific size within Mikuni's jet range.
Yes, with proper tools and knowledge. You'll need to remove the carburetor, access the jet, and carefully replace it. If you're unfamiliar with carburetor work, consider having a professional tuner handle this.
Common signs include rough idle, hesitation at low throttle, difficulty starting, or poor fuel economy. However, these symptoms can have multiple causes, so proper diagnosis is important before changing jets.
No. Mikuni jets are designed specifically for Mikuni carburetors. Using incorrect jets can cause performance issues and engine damage. Always verify compatibility with your specific carburetor model.
Installation Guide
Difficulty
Medium
Est. Time
15 min
Tools Required
- Small screwdrivers (Phillips and flat-head)
- Carburetor removal tools
- Small jet removal tool or needle-nose pliers
- Gasket scraper
- Clean rags
Pro Tips
- Organize jets in order as you remove them to avoid confusion
- Use a magnetic tray to prevent losing small components
- Clean carburetor thoroughly before reassembly
- Document original jetting configuration before changes
- Test ride after jetting changes to verify performance
- Keep detailed notes of all jetting modifications for future reference
Common Mistakes to Avoid
- Dropping small jets during removal
- Over-tightening jets (can damage brass)
- Not cleaning carburetor passages before reinstalling
- Mixing up different jet sizes
- Failing to properly seal carburetor after jet replacement
Durability & Warranty
Expected Lifespan
Indefinite if properly maintained; replaced during carburetor service or tuning
Warranty
Typically covered under manufacturer warranty if defective
Maintenance
No ongoing maintenance required; inspect during carburetor cleaning
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