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Start ShoppingMIKUNI FM28/1001-50 Brass Bleed Pilot Jet for Mikuni TM Series Carburetors – Precision Air/Fuel Tuning
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Description
Upgrade your Mikuni TM series carburetor with this high-precision bleed pilot jet designed for flawless air/fuel mixture control. Perfect for riders seeking fine-tuned engine performance and reliable fuel delivery in powersports applications.
Key Features
- Brass Construction: Durable, corrosion-resistant material ensures long-lasting performance in demanding environments.
- #28 Orifice Size: Precise flow control for optimal fuel metering in high-performance engines.
- 1.00" Length: Standardized dimensions for easy installation and compatibility with Mikuni TM series carbs.
- Bleed Type Design: Enables accurate air/fuel ratio adjustments for smooth throttle response and power delivery.
Why Choose This Product
Engineers and mechanics rely on MIKUNI bleed pilot jets for their unmatched precision and compatibility. This jet's brass construction resists clogging and wear, while its bleed design allows for micro-adjustments to achieve peak engine efficiency. Ideal for racing, off-road, and street bikes, this component delivers consistent performance across diverse riding conditions.
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Upgrade your Mikuni TM series carburetor with this high-precision bleed pilot jet designed for flawless air/fuel mixture control. Perfect for riders seeking fine-tuned engine performance and reliable fuel delivery in powersports applications.
Key Features
- Brass Construction: Durable, corrosion-resistant material ensures long-lasting performance in demanding environments.
- #28 Orifice Size: Precise flow control for optimal fuel metering in high-performance engines.
- 1.00" Length: Standardized dimensions for easy installation and compatibility with Mikuni TM series carbs.
- Bleed Type Design: Enables accurate air/fuel ratio adjustments for smooth throttle response and power delivery.
Why Choose This Product
Engineers and mechanics rely on MIKUNI bleed pilot jets for their unmatched precision and compatibility. This jet's brass construction resists clogging and wear, while its bleed design allows for micro-adjustments to achieve peak engine efficiency. Ideal for racing, off-road, and street bikes, this component delivers consistent performance across diverse riding conditions.
| SKU | GM91504D49 |
|---|---|
| MPN | FM28/1001-50 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | TM40 carbureted models (e.g., Yamaha YZ/WR, Honda CR/XR, Kawasaki KX/KLX) | 1980-2024 |
| Suzuki | RM/DR-Z series | 1990-2010 |
Frequently Asked Questions
Fits Mikuni TM24, TM34, TM38, TM40 round slide carbs. Check your carb model stamp.
Bleed pilots have a small air bleed hole for better low-speed throttle response and easier tuning in modern emissions-compliant engines.
Often paired with main jets and needle changes for complete jetting kit.
Used in both, popular for trail and motocross bikes.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Jet cleaning wire or carb cleaner
Pro Tips
- Remove carb, unscrew old pilot with precision screwdriver. Test plug chop after install to verify mixture. Use in conjunction with main jets for full tuning.
Common Mistakes to Avoid
- Not cleaning carb passages before install
- Incorrect jet size selection leading to lean/rich conditions
Comparison vs Stock/OEM
Aftermarket precision-machined brass vs. often soft or clogged OEM pilots
Improvements
- Better low-end throttle response
- Easier tuning
- More consistent fuel delivery
Considerations
- Requires proper jetting knowledge; not plug-and-play
Durability & Warranty
Expected Lifespan
Indefinite with proper maintenance (clean every service)
Warranty
Limited lifetime from Mikuni against manufacturing defects
Maintenance
Remove and clean with carb cleaner every 10-20 hours of riding or annually
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