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Start ShoppingMIKUNI FN100606-70 Low Speed Jet - High-Performance Intake System for Powersports Vehicles
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Description
Upgrade your powersports engine's performance with the MIKUNI FN100606-70 Low Speed Jet. This high-precision fuel metering component ensures optimal air-fuel ratios for enhanced power, efficiency, and reliability in off-road and utility vehicles.
Key Features
- Precision Fuel Metering: Advanced design delivers consistent fuel flow for improved throttle response and engine performance.
- Durable Construction: High-quality materials withstand harsh conditions and prolonged use without degradation.
- Easy Adjustment: Simple calibration allows riders to fine-tune fuel delivery for different riding conditions and engine modifications.
- Universal Compatibility: Designed to fit a wide range of MIKUNI carburetor systems for versatility across powersports platforms.
Why Choose This Product
Whether you're tackling rugged terrain or maximizing fuel efficiency, the MIKUNI Low Speed Jet offers reliable performance with minimal maintenance. Its precise fuel delivery system helps prevent engine knocking and ensures smooth operation under varying load conditions. Riders benefit from increased power output, better fuel economy, and reduced wear on critical engine components. This essential upgrade is perfect for mechanics and enthusiasts looking to optimize their powersports equipment's performance.
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Upgrade your powersports engine's performance with the MIKUNI FN100606-70 Low Speed Jet. This high-precision fuel metering component ensures optimal air-fuel ratios for enhanced power, efficiency, and reliability in off-road and utility vehicles.
Key Features
- Precision Fuel Metering: Advanced design delivers consistent fuel flow for improved throttle response and engine performance.
- Durable Construction: High-quality materials withstand harsh conditions and prolonged use without degradation.
- Easy Adjustment: Simple calibration allows riders to fine-tune fuel delivery for different riding conditions and engine modifications.
- Universal Compatibility: Designed to fit a wide range of MIKUNI carburetor systems for versatility across powersports platforms.
Why Choose This Product
Whether you're tackling rugged terrain or maximizing fuel efficiency, the MIKUNI Low Speed Jet offers reliable performance with minimal maintenance. Its precise fuel delivery system helps prevent engine knocking and ensures smooth operation under varying load conditions. Riders benefit from increased power output, better fuel economy, and reduced wear on critical engine components. This essential upgrade is perfect for mechanics and enthusiasts looking to optimize their powersports equipment's performance.
| SKU | GMB167A402 |
|---|---|
| MPN | FN100606-70 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | VM series carburetors (VM26-428, VM30-87, etc.) | 1980-2025 |
| Suzuki | RM250/DR-Z400 | 1990-2010 |
| Honda | CRF250R/CRF450R | 2000-2020 |
| Yamaha | PW80/YZ125 | 1985-2005 |
Frequently Asked Questions
Fits Mikuni VM round slide carbs (VM26, VM30 series) and some TM flat slides. Check your carb model markings.
This is a low/needle jet (FN series), controls mid-range fueling between pilot and main circuits.
No direct fit, but used in Keihin-to-Mikuni conversions with adapter kits.
Use plug chop method or wideband O2 sensor to measure air/fuel ratio and adjust accordingly.
No, reuse stock O-ring or purchase Mikuni O-3Y-4 separately if needed.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Jet wrench or needle nose pliers
Pro Tips
- Remove carb slide/emulsion tube first. Use carb cleaner to inspect passages. Always rejet in pairs for balance.
Common Mistakes to Avoid
- Dropping the tiny jet into the carb body
- Not cleaning carb before install
Comparison vs Stock/OEM
OEM jets are often smaller/tinier brass; Mikuni FN series offers precise machining for better flow control
Improvements
- More consistent fueling
- Easier tuning increments
- Superior brass alloy resists corrosion
Considerations
- Requires rejetting for altitude/temp changes unlike some OEM auto-adjust
Durability & Warranty
Expected Lifespan
Indefinite with proper maintenance (carb cleaning)
Warranty
Limited lifetime from Mikuni against defects
Maintenance
Inspect during annual carb service; replace if deformed or clogged
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