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Start ShoppingMIKUNI FM28/1001-27.5 Bleed Pilot Jet - High-Performance Brass Jets for Racing & Off-Road
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Description
Upgrade your MIKUNI engine's fuel system with this high-precision Bleed Pilot Jet designed for maximum performance. Engineered for racing and off-road conditions, this brass jet ensures consistent fuel delivery and optimal engine efficiency.
Key Features
- Brass Construction: Durable, corrosion-resistant material for long-lasting performance in harsh environments.
- 27.5 Size: Precision-machined for accurate fuel flow control in high-output engines.
- M5 x 0.75 Thread: Universal compatibility with MIKUNI carburetor systems for easy installation.
- Compact Design: 0.5 in length and 0.2 in diameter for precise fuel metering without obstructing airflow.
- Lightweight: Just 0.1 oz to minimize impact on engine balance and responsiveness.
Why Choose This Product
Whether you're competing in racing events or tackling rugged off-road terrain, this Bleed Pilot Jet delivers reliable fuel delivery with minimal maintenance. Its brass construction resists wear from fuel and environmental factors, while the precise sizing ensures optimal air-fuel ratios for power and efficiency. Perfect for tuners and mechanics seeking to fine-tune engine performance without compromising durability.
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Upgrade your MIKUNI engine's fuel system with this high-precision Bleed Pilot Jet designed for maximum performance. Engineered for racing and off-road conditions, this brass jet ensures consistent fuel delivery and optimal engine efficiency.
Key Features
- Brass Construction: Durable, corrosion-resistant material for long-lasting performance in harsh environments.
- 27.5 Size: Precision-machined for accurate fuel flow control in high-output engines.
- M5 x 0.75 Thread: Universal compatibility with MIKUNI carburetor systems for easy installation.
- Compact Design: 0.5 in length and 0.2 in diameter for precise fuel metering without obstructing airflow.
- Lightweight: Just 0.1 oz to minimize impact on engine balance and responsiveness.
Why Choose This Product
Whether you're competing in racing events or tackling rugged off-road terrain, this Bleed Pilot Jet delivers reliable fuel delivery with minimal maintenance. Its brass construction resists wear from fuel and environmental factors, while the precise sizing ensures optimal air-fuel ratios for power and efficiency. Perfect for tuners and mechanics seeking to fine-tune engine performance without compromising durability.| SKU | GM47AC41B8 |
|---|---|
| MPN | FM28/1001-27.5 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various (Suzuki, Yamaha, Honda, Kawasaki) | Models with Mikuni VM/PF/BS carburetors (e.g., Suzuki RM250/DRZ400, Yamaha YZ250/WR450, Honda CRF450R/XR400R) | 1980-2025 |
Frequently Asked Questions
Fits Mikuni VM series (26-40mm), BS series, and some PF carbs on dirt bikes, ATVs, and snowmobiles.
Use jetting charts based on engine mods, altitude, temperature, and main/pilot jet combo. Consult Mikuni jetting guide.
Yes, bleed pilot jets have an air bleed hole for better low-speed atomization and tunability.
Ideal for motocross/supermoto racing where precise low-end fueling is critical.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Jet cleaning wire or carb cleaner
Pro Tips
- Remove old jet carefully to avoid dropping into carb
- Test plug chop method after install to verify fueling
Common Mistakes to Avoid
- Not cleaning carb passages before install
- Incorrect jet size selection without testing
Comparison vs Stock/OEM
Direct replacement or upgrade for OEM Mikuni carbs; bleed design improves over non-bleed pilots
Improvements
- Better fuel atomization at low throttle
- Easier tuning for mods/elevation
- More precise idle/low-speed circuit
Considerations
- Requires testing to dial in correctly
Durability & Warranty
Expected Lifespan
Indefinite with proper cleaning (carb service every 20-50 hours)
Warranty
Limited lifetime from Mikuni against defects
Maintenance
Remove and clean during carb rebuilds; inspect for clogging
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