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Start ShoppingMIKUNI FM28/1001-17.5 Bleed Pilot Jets - Precision Brass Jets for Optimal Air/Fuel Tuning
Description
Upgrade your motorcycle's engine performance with MIKUNI's FM28/1001-17.5 Bleed Pilot Jets. These precision-engineered brass jets deliver superior air/fuel mixture control for enhanced power, efficiency, and reliability on the track or street.
Key Features
- Brass Construction: Durable, corrosion-resistant material ensures long-lasting performance in harsh riding conditions.
- 17.5mm Clip Height: Optimized for precise fuel metering and lean air/fuel mixture tuning.
- FM28/1001 Bleed Hole Configuration: Advanced bleed air tuning for improved throttle response and engine efficiency.
- M5 x 0.75 Thread Size: Universal compatibility with MIKUNI carburetor systems for easy installation.
- 5g Lightweight Design: Reduces moving parts mass while maintaining structural integrity.
Why Choose This Product
Whether you're tuning a high-performance motorcycle or optimizing fuel efficiency, these jets offer unmatched precision. The brass material resists wear and maintains consistent flow rates, while the bleed hole design allows for fine-tuning of air/fuel ratios. Riders benefit from smoother power delivery, better throttle control, and improved engine responsiveness—making them essential for competitive racing or spirited street riding.Log in to submit a price match request.
Upgrade your motorcycle's engine performance with MIKUNI's FM28/1001-17.5 Bleed Pilot Jets. These precision-engineered brass jets deliver superior air/fuel mixture control for enhanced power, efficiency, and reliability on the track or street.
Key Features
- Brass Construction: Durable, corrosion-resistant material ensures long-lasting performance in harsh riding conditions.
- 17.5mm Clip Height: Optimized for precise fuel metering and lean air/fuel mixture tuning.
- FM28/1001 Bleed Hole Configuration: Advanced bleed air tuning for improved throttle response and engine efficiency.
- M5 x 0.75 Thread Size: Universal compatibility with MIKUNI carburetor systems for easy installation.
- 5g Lightweight Design: Reduces moving parts mass while maintaining structural integrity.
Why Choose This Product
Whether you're tuning a high-performance motorcycle or optimizing fuel efficiency, these jets offer unmatched precision. The brass material resists wear and maintains consistent flow rates, while the bleed hole design allows for fine-tuning of air/fuel ratios. Riders benefit from smoother power delivery, better throttle control, and improved engine responsiveness—making them essential for competitive racing or spirited street riding.| SKU | GM793B8A91 |
|---|---|
| MPN | FM28/1001-17.5 |
| Brand | MIKUNI |
| Category | Jets |
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| Make | Model | Years |
|---|---|---|
| Various (Keihin/PVM carbureted bikes) | VM/PF series carbs (e.g., Yamaha YZ/WR, Honda CR, Suzuki RM) | 1985-2024 |
| Kawasaki | KX250/450 | 1990-2010 |
| Honda | CRF250R/450R | 2000-2020 |
Frequently Asked Questions
Fits Mikuni VM, VMN, VM30, BS series carbs with bleed pilot jet holder. Confirm your carb model has FM28/1001 holder.
Bleed jets introduce air into the pilot circuit for easier tuning of low-speed mixtures without changing fuel flow as drastically.
17.5 refers to clip/bleed height. Stock sizes vary; start with OEM size and adjust based on plug reads.
No, designed for Mikuni carbs only. Keihin uses different threading/sizing.
Installation Guide
Tools Required
- Small flathead screwdriver
- Jet removal tool or needle nose pliers
- Magnifying glass (optional for verification)
Pro Tips
- Clean carb thoroughly before install. Test multiple jet sizes for best tuning. Mark original jet size for reference.
Common Mistakes to Avoid
- Dropping tiny jet into carb body (use parts tray)
- Installing without cleaning jet passages first
Comparison vs Stock/OEM
Direct replacement or upgrade for OEM Mikuni/Keihin pilots in many Japanese bikes
Improvements
- Easier low-speed tuning via bleed air
- More precise fueling adjustments
- Reduces bogging/stalling
Considerations
- Requires carb cleaning and tuning knowledge; not plug-and-play without testing
Durability & Warranty
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