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Start ShoppingMIKUNI FVM28/486-27.5 Bleed Pilot Jets - Brass Flat Slide Carburetor Jet for High-Performance Engines
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Description
Upgrade your carburetor's fuel delivery system with these MIKUNI FVM28/486-27.5 bleed pilot jets. Designed for flat slide carburetors, these brass jets ensure precise fuel metering for responsive engine performance and smooth throttle response.
Key Features
- Material: Durable brass construction resists corrosion and maintains precision in harsh environments
- Jet Size: #486 with bleed hole for optimal fuel flow control and air-fuel balance
- Dimensions: 27.5mm clip height for perfect fit with compatible carburetor bodies
- Type: Flat slide carburetor bleed pilot jet for advanced fuel delivery tuning
- Weight: Negligible (under 1g) for lightweight performance without compromising durability
Why Choose This Product
These MIKUNI bleed pilot jets deliver unmatched accuracy for fuel metering, ensuring your engine runs efficiently across various conditions. The brass material provides long-lasting performance while the precise 27.5mm clip height ensures seamless integration with factory carburetor systems. Whether you're tuning for racing, off-road, or street use, this jet's #486 size and bleed hole design offer exceptional control over fuel delivery. The lightweight construction reduces overall system weight without sacrificing structural integrity, making it an essential upgrade for serious riders seeking peak engine performance.
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Upgrade your carburetor's fuel delivery system with these MIKUNI FVM28/486-27.5 bleed pilot jets. Designed for flat slide carburetors, these brass jets ensure precise fuel metering for responsive engine performance and smooth throttle response.
Key Features
- Material: Durable brass construction resists corrosion and maintains precision in harsh environments
- Jet Size: #486 with bleed hole for optimal fuel flow control and air-fuel balance
- Dimensions: 27.5mm clip height for perfect fit with compatible carburetor bodies
- Type: Flat slide carburetor bleed pilot jet for advanced fuel delivery tuning
- Weight: Negligible (under 1g) for lightweight performance without compromising durability
Why Choose This Product
These MIKUNI bleed pilot jets deliver unmatched accuracy for fuel metering, ensuring your engine runs efficiently across various conditions. The brass material provides long-lasting performance while the precise 27.5mm clip height ensures seamless integration with factory carburetor systems. Whether you're tuning for racing, off-road, or street use, this jet's #486 size and bleed hole design offer exceptional control over fuel delivery. The lightweight construction reduces overall system weight without sacrificing structural integrity, making it an essential upgrade for serious riders seeking peak engine performance.| SKU | GMED6B6C2A |
|---|---|
| MPN | FVM28/486-27.5 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | VM/FVM series carbureted motorcycles/ATVs | 1980-2025 |
Frequently Asked Questions
Designed for Mikuni FVM28 flat slide carbs, common on 125-250cc trail/motocross bikes.
Larger number = richer mixture. Start with stock size, adjust based on plug reads or wideband O2.
Yes, bleed type has a small hole for air bleed, improving throttle response in FVM carbs.
No, Mikuni-specific threading and dimensions.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Jet removal tool (optional)
Pro Tips
- Remove carb, unscrew pilot jet counterclockwise. Clean with carb cleaner. Match size to your elevation and mods. Re-jet main and needle if changing significantly.
Common Mistakes to Avoid
- Not cleaning carb passages before install
- Incorrect jet sizing for altitude/temp
Comparison vs Stock/OEM
Direct OEM-style replacement for Mikuni-equipped bikes; bleed design vs. standard pilot
Improvements
- Better idle/low-speed response
- Easier tuning for mods
Considerations
- Precise sizing required for optimal AFR
Durability & Warranty
Expected Lifespan
Indefinite with proper maintenance (carb rebuild every 50-100 hours)
Warranty
Limited manufacturer warranty (typically 1 year)
Maintenance
Inspect during carb cleans; replace if passages clog
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