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Start ShoppingMIKUNI FVM11/22-90 Round Main Jet - Precision Brass Fuel Jet for High-Performance Engines
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Description
Upgrade your carburetor's fuel delivery precision with MIKUNI's FVM11/22-90 Round Main Jet. This meticulously crafted brass jet ensures accurate fuel metering for #90 flow rates, delivering consistent power and performance across a range of riding conditions.
Key Features
- Jet Size: #90 calibration for precise fuel flow control
- Material: Durable brass construction for long-lasting performance
- Dimensions: 5.6mm outer diameter with precision-calibrated inner orifice
- Weight: Lightweight 2-gram design for optimal carburetor balance
Why Choose This Product
Engineers and riders rely on MIKUNI jets for their unmatched accuracy and reliability. This Round Main Jet's brass construction resists corrosion while maintaining precise flow rates, ensuring smooth throttle response and consistent power delivery. The 5.6mm outer diameter and calibrated orifice work seamlessly with MIKUNI FVM11/22 carburetors, making it an essential upgrade for performance enthusiasts seeking fine-tuned fuel metering.
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Upgrade your carburetor's fuel delivery precision with MIKUNI's FVM11/22-90 Round Main Jet. This meticulously crafted brass jet ensures accurate fuel metering for #90 flow rates, delivering consistent power and performance across a range of riding conditions.
Key Features
- Jet Size: #90 calibration for precise fuel flow control
- Material: Durable brass construction for long-lasting performance
- Dimensions: 5.6mm outer diameter with precision-calibrated inner orifice
- Weight: Lightweight 2-gram design for optimal carburetor balance
Why Choose This Product
Engineers and riders rely on MIKUNI jets for their unmatched accuracy and reliability. This Round Main Jet's brass construction resists corrosion while maintaining precise flow rates, ensuring smooth throttle response and consistent power delivery. The 5.6mm outer diameter and calibrated orifice work seamlessly with MIKUNI FVM11/22 carburetors, making it an essential upgrade for performance enthusiasts seeking fine-tuned fuel metering.
| SKU | GM101D35FC |
|---|---|
| MPN | FVM11/22-90 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | VM Series Carbureted Motorcycles/ATVs | 1980-2025 |
| Yamaha | XT600, YZ250, WR250 | 1990-2010 |
| Honda | XR250R, XR400R, CRF450R (pre-PGM-FI) | 1985-2005 |
Frequently Asked Questions
Fits Mikuni VM series round main jets (FVM11/22), typically VM26 through VM34 carbs on 2-stroke and 4-stroke powersports vehicles.
Use jetting charts based on altitude, temperature, mods (exhaust, air filter, bore-up). #90 is common stock for mid-range 250-450cc engines at sea level.
Yes, FVM11/22 are round style; square are BS30/VM30 series. Confirm your carb type.
Only if clean and undamaged; inspect orifice for wear. New jets recommended for precise tuning.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Jet cleaning wire or guitar string
- Carb cleaner
- Compressed air
Pro Tips
- Verify jet size with calipers or stamp
- Clean all passages when rejetting
- Test plug chop method for tuning confirmation
Common Mistakes to Avoid
- Not cleaning jet before install
- Installing wrong size jet
- Overlooking float height adjustment
Comparison vs Stock/OEM
Direct OEM-equivalent for Mikuni-carbed bikes; identical to factory jets
Improvements
- Fresh calibration for precise fueling
- Brass resists corrosion better than worn OEM
Considerations
- No performance gain over stock unless tuning for mods
Durability & Warranty
Expected Lifespan
Indefinite with proper cleaning; 2-5 years typical use
Warranty
Limited manufacturer defect warranty (contact retailer)
Maintenance
Remove and clean with wire/air every 10-20 hours; inspect during rejetting
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