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Start ShoppingMIKUNI FVM34/50 Throttle Valve Spring - High-Tensile Steel for Carburetor Intake Systems
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Description
Upgrade your MIKUNI carburetor's throttle response with this precision-engineered throttle valve spring. Built for durability and performance, this essential component ensures smooth acceleration and reliable engine operation for powersports enthusiasts.
Key Features
- High-tensile steel construction: Resists fatigue and maintains spring tension under extreme conditions
- Designed for 34mm FVM carburetor: Perfect fit for MIKUNI's FVM34/50 throttle valve systems
- Lightweight 0.5 oz (14g): Reduces moving mass for faster throttle reaction times
Why Choose This Product
This throttle valve spring delivers superior performance with its corrosion-resistant steel alloy and precise engineering. The compact design ensures easy installation while maintaining optimal valve control. Riders will experience improved throttle response and consistent engine performance, making it a must-have upgrade for competitive and recreational powersports applications.
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Upgrade your MIKUNI carburetor's throttle response with this precision-engineered throttle valve spring. Built for durability and performance, this essential component ensures smooth acceleration and reliable engine operation for powersports enthusiasts.
Key Features
- High-tensile steel construction: Resists fatigue and maintains spring tension under extreme conditions
- Designed for 34mm FVM carburetor: Perfect fit for MIKUNI's FVM34/50 throttle valve systems
- Lightweight 0.5 oz (14g): Reduces moving mass for faster throttle reaction times
Why Choose This Product
This throttle valve spring delivers superior performance with its corrosion-resistant steel alloy and precise engineering. The compact design ensures easy installation while maintaining optimal valve control. Riders will experience improved throttle response and consistent engine performance, making it a must-have upgrade for competitive and recreational powersports applications.
| SKU | GM075B067A |
|---|---|
| MPN | FVM34/50 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Suzuki | RM250, RMZ250, RM85 | 2000-2010 |
| Kawasaki | KX250, KX125 | 1998-2008 |
| Yamaha | YZ250, YZ125 | 2001-2009 |
Frequently Asked Questions
Yes, this is the genuine Mikuni replacement spring for FVM34/50 throttle valves found on many 2-stroke MX bikes from 1998-2010.
This is the OEM specification spring - same rate as factory. If worn, it will feel much more responsive.
No, this is just the throttle valve spring. Common replacement when throttle feels sloppy.
Confirm your carburetor is Mikuni FVM34/50 model. Check the stamping on the body.
Installation Guide
Difficulty
Easy
Est. Time
15 min
Tools Required
- Phillips screwdriver
- small flathead screwdriver
- needle nose pliers
Pro Tips
- Mark slide position before disassembly
- Clean carb body while apart
- Lubricate slide with light oil
Common Mistakes to Avoid
- Forgetting to note slide orientation
- Over-compressing spring during removal
Comparison vs Stock/OEM
This is the genuine Mikuni OEM part - identical to factory spring
Improvements
- Restores original crisp throttle response
- Eliminates throttle lag from worn springs
Considerations
- None - direct OEM replacement
Durability & Warranty
Expected Lifespan
3-5 years typical racing use
Warranty
Mikuni 1-year limited warranty
Maintenance
Inspect during annual carb service
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