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Start ShoppingMIKUNI FJ8-7DH03 Jet Needle - Precision Fuel Metering for Carburetors
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Description
Upgrade your MIKUNI carburetor's fuel delivery system with this precision-engineered jet needle. Designed for high-performance engines, this critical component ensures accurate fuel metering for smooth throttle response and maximum power output.
Key Features
- Exact Fuel Calibration: Ensures optimal air-fuel ratios for improved engine efficiency and responsiveness.
- High-Quality Construction: Durable materials withstand extreme operating conditions for long-lasting performance.
- Perfect Fit: Precision-machined for seamless compatibility with MIKUNI FJ8-7DH03 carburetor systems.
Why Choose This Product
This jet needle delivers reliable fuel delivery for enhanced engine performance, whether you're racing or riding recreationally. Its precise calibration helps prevent fuel starvation and ensures consistent power delivery across all RPM ranges. The durable design reduces maintenance needs, making it a trusted choice for serious riders seeking peak performance from their powersports equipment.
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Upgrade your MIKUNI carburetor's fuel delivery system with this precision-engineered jet needle. Designed for high-performance engines, this critical component ensures accurate fuel metering for smooth throttle response and maximum power output.
Key Features
- Exact Fuel Calibration: Ensures optimal air-fuel ratios for improved engine efficiency and responsiveness.
- High-Quality Construction: Durable materials withstand extreme operating conditions for long-lasting performance.
- Perfect Fit: Precision-machined for seamless compatibility with MIKUNI FJ8-7DH03 carburetor systems.
Why Choose This Product
This jet needle delivers reliable fuel delivery for enhanced engine performance, whether you're racing or riding recreationally. Its precise calibration helps prevent fuel starvation and ensures consistent power delivery across all RPM ranges. The durable design reduces maintenance needs, making it a trusted choice for serious riders seeking peak performance from their powersports equipment.
| SKU | GM0ADD5789 |
|---|---|
| MPN | FJ8-7DH03 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Yamaha | YZ450F | 2009-2014 |
| Yamaha | WR450F | 2009-2014 |
| Kawasaki | KX450F | 2010-2015 |
| Honda | CRF450R | 2008-2012 |
Frequently Asked Questions
Start with 3rd clip from top for sea level. Adjust richer (lower clip) for higher altitude or colder temps.
This is genuine OEM Mikuni jet needle FJ8-7DH03.
No, designed for Mikuni TM/P series carbs. Check your carb model first.
Controls mid-throttle fuel delivery. Thinner taper = leaner mid-range.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Carburetor rebuild kit (optional)
Pro Tips
- Note original clip position before removal. Test jetting in 1/4 clip first.
Common Mistakes to Avoid
- Not cleaning carb slide before install
- Incorrect clip position for altitude/temp
Comparison vs Stock/OEM
Direct OEM replacement for Yamaha/Kawasaki models with Mikuni carbs
Improvements
- Precision machining for consistent fueling
- Multiple clip positions for tuning
Considerations
- None - identical to factory spec
Durability & Warranty
Expected Lifespan
Indefinite with proper jetting (no wear parts)
Warranty
Mikuni lifetime against manufacturing defects
Maintenance
Inspect during carb cleaning (every 20 hours racing)
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