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Start ShoppingMIKUNI FM28/1001-45 Bleed Pilot Jets - Precision Fuel Delivery for High-Performance Engines
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Description
Upgrade your engine's fuel delivery system with Mikuni's FM28/1001-45 Bleed Pilot Jets, engineered for precise fuel metering and reliable performance in high-output engines.
Key Features
- Precision Engineering: Factory-tuned flow rates ensure consistent fuel delivery across varying RPM ranges.
- Universal Compatibility: Designed for Mikuni TMX/TMX2 and FD/CD carburetor models with 1001-45 pilot jet fittings.
- Durable Construction: Cast aluminum alloy resists corrosion and maintains accuracy in extreme operating conditions.
Why Choose This Product
These bleed pilot jets deliver enhanced throttle response, smoother idle quality, and improved fuel efficiency. Their precision-machined design reduces wear and ensures long-term reliability, making them essential for riders demanding peak engine performance. Perfect for racing, off-road, and high-performance street applications where exact fuel metering is critical.
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Upgrade your engine's fuel delivery system with Mikuni's FM28/1001-45 Bleed Pilot Jets, engineered for precise fuel metering and reliable performance in high-output engines.
Key Features
- Precision Engineering: Factory-tuned flow rates ensure consistent fuel delivery across varying RPM ranges.
- Universal Compatibility: Designed for Mikuni TMX/TMX2 and FD/CD carburetor models with 1001-45 pilot jet fittings.
- Durable Construction: Cast aluminum alloy resists corrosion and maintains accuracy in extreme operating conditions.
Why Choose This Product
These bleed pilot jets deliver enhanced throttle response, smoother idle quality, and improved fuel efficiency. Their precision-machined design reduces wear and ensures long-term reliability, making them essential for riders demanding peak engine performance. Perfect for racing, off-road, and high-performance street applications where exact fuel metering is critical.
| SKU | GM4DA03961 |
|---|---|
| MPN | FM28/1001-45 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | Carbureted motorcycles/ATVs (e.g., Honda XR series, Yamaha YZ, Kawasaki KX) | 1980-2025 |
| Suzuki | RM/DR-Z series | 1990-2010 |
Frequently Asked Questions
Fits Mikuni VM, VMH, VMN, PF series carburetors with bleed type pilot jets. Common on 125-500cc 2-stroke and 250-650cc 4-stroke bikes.
Check your stock jet marking or measure orifice. #45 is common for mid-range tuning on many trail and MX bikes.
Yes, bleed pilot jets have a small air bleed hole for better idle/emission control vs. standard emulsionless pilots.
Proper sizing can fix lean/rich conditions, improve throttle response and idle stability.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Jet removal tool or needle nose pliers
- Carb cleaner
Pro Tips
- Remove carb from bike for better access
- Use carb cleaner to flush passages
- Verify idle mixture screw position after install
Common Mistakes to Avoid
- Dropping tiny jet into carb body
- Not cleaning passages before install
- Incorrect jet size selection
Comparison vs Stock/OEM
Direct OEM replacement or upgrade for worn factory pilots
Improvements
- Precision machined orifices
- Consistent fuel delivery
- Better idle/starting
Considerations
- Must match exact carb specs
Durability & Warranty
Expected Lifespan
Indefinite with proper jetting (replace when passages clog)
Warranty
Limited lifetime (manufacturer defect only)
Maintenance
Clean during annual carb service; inspect for wear
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