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Start ShoppingMIKUNI FBN46I/14 Diaphragm Pump Assembly for BN461 Carburetor - High-Performance Fuel System Component
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Description
Upgrade your powersports engine's fuel delivery system with this precision-engineered MIKUNI diaphragm pump assembly. Designed for the BN461 carburetor, this critical component ensures consistent fuel flow, optimal engine performance, and reliable operation in demanding off-road conditions.
Key Features
- Durable Rubber Diaphragm with Metal Housing: Resists wear and tear from fuel and environmental factors while maintaining precise pressure regulation.
- Compatibility with MIKUNI BN461 Carburetor: Direct replacement for original equipment, ensuring seamless integration with existing fuel system components.
- Robust Construction: Metal housing provides structural integrity, while the flexible rubber diaphragm adapts to fuel pressure fluctuations for smooth operation.
Why Choose This Product
Whether you're maintaining a classic powersports vehicle or upgrading a modern rig, this MIKUNI diaphragm pump assembly delivers the reliability and performance riders demand. Its durable design minimizes maintenance needs, while precise fuel regulation helps maximize engine efficiency and power output. As a trusted component in MIKUNI's fuel system lineup, this replacement part ensures your engine runs smoothly under all conditions.
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Upgrade your powersports engine's fuel delivery system with this precision-engineered MIKUNI diaphragm pump assembly. Designed for the BN461 carburetor, this critical component ensures consistent fuel flow, optimal engine performance, and reliable operation in demanding off-road conditions.
Key Features
- Durable Rubber Diaphragm with Metal Housing: Resists wear and tear from fuel and environmental factors while maintaining precise pressure regulation.
- Compatibility with MIKUNI BN461 Carburetor: Direct replacement for original equipment, ensuring seamless integration with existing fuel system components.
- Robust Construction: Metal housing provides structural integrity, while the flexible rubber diaphragm adapts to fuel pressure fluctuations for smooth operation.
Why Choose This Product
Whether you're maintaining a classic powersports vehicle or upgrading a modern rig, this MIKUNI diaphragm pump assembly delivers the reliability and performance riders demand. Its durable design minimizes maintenance needs, while precise fuel regulation helps maximize engine efficiency and power output. As a trusted component in MIKUNI's fuel system lineup, this replacement part ensures your engine runs smoothly under all conditions.| SKU | GME81C1DB4 |
|---|---|
| MPN | FBN46I/14 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
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Frequently Asked Questions
Signs include: fuel leaking from carburetor overflow tubes, difficulty starting, inconsistent fuel delivery, or visible cracks/deterioration in the diaphragm when inspected.
Yes, the FBN46I/14 is designed specifically for BN461 carburetors. Verify your carburetor model number before ordering.
Diaphragms typically cannot be repaired and require replacement. The FBN46I/14 is a complete pump assembly replacement.
Different MIKUNI pump models are designed for specific carburetor sizes and fuel delivery requirements. The /14 designation indicates this is for the BN461 series.
Yes, drain the fuel tank and carburetor bowl completely before beginning work to prevent fuel spillage and safety hazards.
Installation Guide
Difficulty
Medium
Est. Time
45 min
Tools Required
- Small screwdrivers (Phillips and flathead)
- Carburetor cleaning tools
- Gasket scraper
- Torque wrench (small scale)
Pro Tips
- Take photos during disassembly for reference
- Inspect the diaphragm for cracks or deterioration
- Clean all fuel passages thoroughly
- Use new gaskets when reassembling
- Test fuel flow before full reassembly
Common Mistakes to Avoid
- Damaging the diaphragm during removal
- Improper seating of the diaphragm
- Over-tightening pump housing bolts
- Not cleaning carburetor passages before reassembly
Durability & Warranty
Expected Lifespan
5-10 years typical, depending on fuel quality and storage conditions
Warranty
Typically covered under manufacturer warranty; verify with seller
Maintenance
Inspect annually; replace if diaphragm shows cracks or fuel leakage occurs
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