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Start ShoppingMIKUNI #350 Brass Hex Main Jets - High-Performance Fuel Control for Powersports
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Description
Upgrade your powersports engine's fuel delivery system with MIKUNI's precision-crafted #350 Brass Hex Main Jets. These high-performance jets deliver consistent fuel flow for enhanced throttle response, smoother power delivery, and reliable engine operation under demanding conditions.
Key Features
- Brass Construction: Corrosion-resistant brass ensures long-lasting durability in harsh engine environments.
- Hex Head Design: Easy-to-adjust hex head allows precise fuel flow calibration for optimal engine performance.
- M5 x 0.75 Thread: Standard thread size ensures compatibility with most MIKUNI carburetor setups.
- Lightweight Design: Only 0.1 oz per jet reduces engine strain while maintaining structural integrity.
- Precision-Machined: Tight tolerances ensure accurate fuel metering for consistent power output.
Why Choose This Product
These MIKUNI main jets are engineered for riders who demand precision and reliability. The brass material resists clogging and corrosion, while the hex head design simplifies maintenance. Whether you're tuning a motocross bike, ATV, or off-road vehicle, these jets provide the accuracy needed for peak performance. Their lightweight construction minimizes engine load, and the standard thread size ensures hassle-free installation. Perfect for both professional tuners and enthusiasts looking to fine-tune their powersports equipment.
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Upgrade your powersports engine's fuel delivery system with MIKUNI's precision-crafted #350 Brass Hex Main Jets. These high-performance jets deliver consistent fuel flow for enhanced throttle response, smoother power delivery, and reliable engine operation under demanding conditions.
Key Features
- Brass Construction: Corrosion-resistant brass ensures long-lasting durability in harsh engine environments.
- Hex Head Design: Easy-to-adjust hex head allows precise fuel flow calibration for optimal engine performance.
- M5 x 0.75 Thread: Standard thread size ensures compatibility with most MIKUNI carburetor setups.
- Lightweight Design: Only 0.1 oz per jet reduces engine strain while maintaining structural integrity.
- Precision-Machined: Tight tolerances ensure accurate fuel metering for consistent power output.
Why Choose This Product
These MIKUNI main jets are engineered for riders who demand precision and reliability. The brass material resists clogging and corrosion, while the hex head design simplifies maintenance. Whether you're tuning a motocross bike, ATV, or off-road vehicle, these jets provide the accuracy needed for peak performance. Their lightweight construction minimizes engine load, and the standard thread size ensures hassle-free installation. Perfect for both professional tuners and enthusiasts looking to fine-tune their powersports equipment.| SKU | GMC05EB5CE |
|---|---|
| MPN | F4/042-350 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | Carbureted motorcycles/ATVs (e.g., Honda XR, Yamaha YZ, Kawasaki KX) | 1985-2024 |
Frequently Asked Questions
Fits Mikuni VM26-VM34, BS30-VM34, PF series carbs on many 125-500cc bikes/ATVs.
Use plug chop method or wideband O2 sensor to measure air/fuel ratio and adjust accordingly.
Hex jets are easier to remove/install without special tools; same flow rate as round equivalent.
Correct sizing optimizes fuel delivery for your mods/altitude; not a performance part alone.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Jet wrench or hex key
Pro Tips
- Remove float bowl carefully to avoid damaging gasket. Clean jet thoroughly before reuse.
Common Mistakes to Avoid
- Not cleaning carb passages before install
- Incorrect jet size selection
Comparison vs Stock/OEM
Direct replacement for OEM main jets in Mikuni-equipped bikes
Improvements
- Easier hex-head installation
- Consistent flow calibration
- Precision manufacturing tolerances
Considerations
- Must select correct size for your setup
Durability & Warranty
Expected Lifespan
Indefinite with proper cleaning (carb life)
Warranty
Limited manufacturer warranty
Maintenance
Clean with carb cleaner during rebuilds; inspect for wear/clogging
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