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Start ShoppingMIKUNI Round Main Jet #70 - Precision Brass Jets for High-Performance Engines
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Description
Upgrade your powersports engine's fuel delivery system with the MIKUNI FVM11/22-70 Round Main Jet. This precision-engineered brass jet ensures consistent fuel flow and optimal engine performance for high-output applications. Ideal for tuners and mechanics seeking reliable, durable fuel system components.
Key Features
- Brass Construction: Durable, corrosion-resistant material for long-lasting performance in harsh environments.
- #70 Jet Sizing: Precisely calibrated for balanced fuel-air mixture in high-revving engines.
- 11mm Outer Diameter: Standard size for easy installation and compatibility with most carburetor setups.
- 22mm Inner Flow: Optimized bore size for enhanced fuel flow and engine responsiveness.
- Lightweight Design: Only 0.5g weight reduces strain on engine components without sacrificing durability.
Why Choose This Product
Engineers and riders rely on MIKUNI jets for their unmatched precision and reliability. This round main jet delivers consistent fuel delivery, improves throttle response, and supports peak engine performance. Its brass construction resists wear and corrosion, ensuring smooth operation in demanding powersports conditions. Whether you're tuning a motorcycle, ATV, or off-road vehicle, this jet provides the accuracy needed for professional-level performance.
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Upgrade your powersports engine's fuel delivery system with the MIKUNI FVM11/22-70 Round Main Jet. This precision-engineered brass jet ensures consistent fuel flow and optimal engine performance for high-output applications. Ideal for tuners and mechanics seeking reliable, durable fuel system components.
Key Features
- Brass Construction: Durable, corrosion-resistant material for long-lasting performance in harsh environments.
- #70 Jet Sizing: Precisely calibrated for balanced fuel-air mixture in high-revving engines.
- 11mm Outer Diameter: Standard size for easy installation and compatibility with most carburetor setups.
- 22mm Inner Flow: Optimized bore size for enhanced fuel flow and engine responsiveness.
- Lightweight Design: Only 0.5g weight reduces strain on engine components without sacrificing durability.
Why Choose This Product
Engineers and riders rely on MIKUNI jets for their unmatched precision and reliability. This round main jet delivers consistent fuel delivery, improves throttle response, and supports peak engine performance. Its brass construction resists wear and corrosion, ensuring smooth operation in demanding powersports conditions. Whether you're tuning a motorcycle, ATV, or off-road vehicle, this jet provides the accuracy needed for professional-level performance.
| SKU | GM7728356F |
|---|---|
| MPN | FVM11/22-70 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | Models with Mikuni VM series carbs (VM26, VM30, VM34, VM36, VM38, etc.) | 1980-2025 |
| Yamaha | XT600, TT600, SR400/500 | 1990-2010 |
| Suzuki | DR350, DRZ400 (early), SP370 | 1985-2005 |
| Kawasaki | KLX300, KDX200/220 | 1995-2020 |
| Honda | XR250R, XR400R, XL600V Transalp | 1980-2015 |
Frequently Asked Questions
Fits Mikuni VM series round main jets (VM20-VM44). Check your carb model for FVM11/22 series.
Use a jet kit recommendation chart based on altitude, mods, and plug reads. Start with stock size +/- 5%.
Universal for both; used in powersports bikes, ATVs with VM carbs.
Yes, available in sets of 10 from some retailers for rebuilds.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Jet wrench or needle nose pliers
Pro Tips
- Remove carburetor float bowl completely. Use jet gauge to verify size. Clean with carb cleaner. Always rejet in pairs (pilot + main) for balance.
Common Mistakes to Avoid
- Not cleaning carb passages before install
- Installing wrong jet size without re-jetting chart
Comparison vs Stock/OEM
Direct OEM equivalent for Mikuni-equipped bikes; identical to factory jets
Improvements
- Precise flow calibration
- Consistent manufacturing tolerances
Considerations
- None; it's the OEM spec part
Durability & Warranty
Expected Lifespan
Indefinite with proper carb maintenance (5+ years typical)
Warranty
Limited lifetime from Mikuni against defects
Maintenance
Inspect during carb cleans (every 20-50 hours). Do not expose to fuel without use.
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