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Start ShoppingMIKUNI FJ8-6DH02 Jet Needle - Precision Fuel Metering for Carburetors
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Description
Upgrade your carburetor's fuel delivery system with the MIKUNI FJ8-6DH02 Jet Needle. This high-precision component ensures accurate fuel metering, enhancing engine performance, efficiency, and responsiveness across a range of riding conditions.
Key Features
- Exact Fuel Metering: Precisely calibrated to deliver optimal air-fuel ratios for maximum power and fuel efficiency.
- Durable Construction: Made from high-quality materials to withstand harsh environments and prolonged use without degradation.
- Perfect Fit: Specifically designed for MIKUNI carburetor systems to ensure seamless integration and reliable operation.
- Easy Installation: Simple replacement process with minimal tools required, saving time and effort during maintenance.
- Consistent Performance: Maintains stable fuel flow under varying throttle inputs and engine loads.
Why Choose This Product
Whether you're tuning a high-performance motorcycle or maintaining a reliable off-road rig, the MIKUNI FJ8-6DH02 Jet Needle delivers unmatched precision and durability. Its advanced design ensures smooth throttle response, improved fuel economy, and consistent power output, making it an essential upgrade for serious riders and mechanics alike.
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Upgrade your carburetor's fuel delivery system with the MIKUNI FJ8-6DH02 Jet Needle. This high-precision component ensures accurate fuel metering, enhancing engine performance, efficiency, and responsiveness across a range of riding conditions.
Key Features
- Exact Fuel Metering: Precisely calibrated to deliver optimal air-fuel ratios for maximum power and fuel efficiency.
- Durable Construction: Made from high-quality materials to withstand harsh environments and prolonged use without degradation.
- Perfect Fit: Specifically designed for MIKUNI carburetor systems to ensure seamless integration and reliable operation.
- Easy Installation: Simple replacement process with minimal tools required, saving time and effort during maintenance.
- Consistent Performance: Maintains stable fuel flow under varying throttle inputs and engine loads.
Why Choose This Product
Whether you're tuning a high-performance motorcycle or maintaining a reliable off-road rig, the MIKUNI FJ8-6DH02 Jet Needle delivers unmatched precision and durability. Its advanced design ensures smooth throttle response, improved fuel economy, and consistent power output, making it an essential upgrade for serious riders and mechanics alike.
| SKU | GMB66A10D0 |
|---|---|
| MPN | FJ8-6DH02 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Kawasaki | KLX450R | 2008-2012 |
| Kawasaki | KX450F | 2006-2009 |
| Suzuki | RMZ450 | 2009-2012 |
Frequently Asked Questions
The jet needle controls the fuel-air mixture during mid-range throttle openings (approximately 1/4 to 3/4 throttle). It works with the needle jet to taper fuel delivery as the throttle is opened.
Signs include rough idle, hesitation during acceleration, poor fuel economy, or if the needle shows visible wear, scoring, or corrosion. OEM needles should be replaced during carburetor rebuilds.
This needle is designed for Mikuni FJ8 series carburetors. Verify your carburetor model number matches before purchasing. Incompatible needles will not fit properly and can cause performance issues.
Jet needles have fixed tapers and cannot be adjusted. However, many Mikuni carburetors allow needle position adjustment via a clip that holds the needle at different heights in the needle jet.
The jet needle controls mid-range mixture (1/4-3/4 throttle), while the main jet controls full-throttle fuel delivery. Both work together for proper carburetor function across all throttle ranges.
Installation Guide
Difficulty
Medium
Est. Time
15 min
Tools Required
- Carburetor removal tools (varies by application)
- Small screwdrivers
- Needle nose pliers
- Gasket scraper
Pro Tips
- Take photos during disassembly for reference
- Clean the entire carburetor while it's apart
- Verify needle position markings match specifications
- Use a carburetor cleaning kit to remove varnish
- Test idle and throttle response after installation
Common Mistakes to Avoid
- Not properly seating the needle in the needle jet
- Losing the small retaining clip during disassembly
- Over-tightening carburetor bowl bolts
- Not cleaning carburetor passages before reassembly
Durability & Warranty
Expected Lifespan
5-10 years typical with proper maintenance; indefinite if not used
Warranty
Typically covered under OEM warranty (varies by retailer)
Maintenance
No maintenance required; replace only when worn or damaged
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