MIKUNI M-VM36-200K Rubber Mounting Flange Typical Carb FVM36-200-1 40MM 14-1048

( Brand: Mikuni ), ( Manufacturer Part Number: M-VM36-200K ), ( Part Type: Mounting Flange ), ( Oe/oem Part Number: Fvm36-200-1 )

Review MIKUNI Rubber Mounting Flange Typical Carb Size 36 40mm

The **Mikuni FVM36-200-1 Rubber Mounting Flange** is a precision-engineered component designed to enhance the performance, reliability, and longevity of carbureted engines, particularly those equipped with 36mm or 40mm throttle bodies. This high-quality rubber mounting flange serves as a critical interface between the carburetor and the engine, ensuring a secure yet vibration-dampening connection that minimizes stress on both the intake manifold and the carburetor itself. Crafted from durable, heat-resistant rubber, this flange is engineered to absorb engine vibrations and shocks, reducing wear on the carburetor s mounting points and preventing premature loosening or damage to the intake system. Its universal compatibility makes it ideal for a wide range of classic and modern carbureted engines, including those found in vintage Japanese motorcycles, lawn equipment, go-karts, and small off-road vehicles, where smooth operation and durability are paramount.

The **14-1048** designation (or similar variant) indicates a specific model tailored for applications requiring a robust yet flexible connection, often used in high-performance or heavily stressed setups where stock rubber mounts may fail under prolonged use or aggressive driving conditions. The flange s design incorporates a reinforced rubber core surrounded by a durable outer layer, providing both flexibility for vibration absorption and structural integrity to maintain alignment under load. This dual-layer construction helps prevent cracking or degradation over time, even in environments exposed to oil, fuel, or moisture, which can accelerate wear in cheaper, lower-quality alternatives. The smooth, contoured surface of the flange ensures an even seal against the carburetor s mounting face, reducing the risk of leaks while allowing for easy installation and removal without the need for specialized tools.

For enthusiasts and mechanics seeking to upgrade their carbureted engines, the **Mikuni FVM36-200-1** is an excellent choice for restoring or enhancing stock setups, as it eliminates the rattles and flexing associated with worn or missing rubber mounts. Its compatibility with a variety of carburetor models including Mikuni, Keihin, and other aftermarket brands makes it a versatile upgrade for both stock and modified applications. Whether used in a high-revving street bike, a reliable off-road machine, or a performance-oriented go-kart, this flange contributes to a quieter, more stable operation by isolating engine vibrations from the carburetor, thereby extending the life of seals, gaskets, and mounting hardware. Its straightforward installation process often involving the removal of old mounts and the application of a thin layer of adhesive or anti-seize compound ensures that even DIY mechanics can achieve a professional-grade result with minimal effort. In summary, the **Mikuni FVM36-200-1 Rubber Mounting Flange** is a small but indispensable component for anyone looking to optimize the performance and durability of their carbureted engine.

The Mikuni FVM36-200-1 rubber mounting flange is a common aftermarket part designed to replace the stock rubber grommets or flanges on carbureted engines, particularly those with 36mm or 40mm throttle bodies (such as those found on older Honda CBR engines, some Kawasaki models, or other carbureted bikes). Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Mikuni FVM36-200-1 Rubber Mounting Flange**

1. **Improved Vibration Dampening**

The rubber flange is engineered to better isolate engine vibrations from the throttle body and surrounding components. This can reduce rattling, especially in high-revving or high-performance setups where stock metal grommets may fail or wear out prematurely.

2. **Enhanced Durability**

Stock rubber grommets on some bikes are prone to cracking, hardening, or failing under heat and stress, particularly in aggressive riding conditions. The Mikuni flange is designed to last longer, maintaining flexibility and resilience over time.

3. **Better Sealing**

The rubber material provides a more consistent seal between the throttle body and the mounting surface, reducing the risk of air leaks that could affect throttle response or carburetion tuning. This is particularly useful if the stock grommets are worn or deformed.

4. **Compatibility with Aftermarket Carbs**

Many aftermarket carburetors (e.g., Mikuni, Keihin, or Dell Orto) require precise mounting flanges to ensure proper alignment and sealing. The FVM36-200-1 is a standard part for 36/40mm carbs, making it a reliable choice for upgrades or replacements.

5. **Easier Installation**

Unlike some metal grommets that may require special tools or precise machining, the Mikuni flange is designed for straightforward installation. It typically fits over the stock mounting points without the need for modifications, though some bikes may require minor adjustments.

6. **Reduced Noise Transmission**

By dampening vibrations, the flange can also help reduce noise transfer from the engine to the handlebars or frame, leading to a quieter riding experience.

7. **Heat Resistance**

The rubber compound used in the Mikuni flange is often formulated to withstand higher temperatures, which is beneficial in performance applications where engine heat is elevated.

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### **Cons of the Mikuni FVM36-200-1 Rubber Mounting Flange**

1. **Potential for Over-Dampening**

While the flange reduces vibrations, excessive dampening can sometimes lead to a slightly "mushy" throttle response or a loss of precision in throttle control, especially in high-performance setups where a firmer connection might be preferred.

2. **Compatibility Issues with Some Bikes**

Not all bikes with 36/40mm carbs will have identical mounting points. Some may require additional spacers, shims, or minor modifications to ensure a proper fit. Always verify compatibility with your specific model before purchasing.

3. **Durability Under Extreme Conditions**

While the flange is more durable than stock grommets, extreme conditions (e.g., prolonged high-speed riding, aggressive track use, or exposure to harsh chemicals) can still cause wear or degradation over time. Replacement may be necessary after significant mileage or abuse.

4. **Cost Relative to Stock Parts**

The Mikuni flange is more expensive than stock rubber grommets, though the price difference is often justified by its superior quality and longevity. However, for budget-conscious riders, this may be a consideration.

5. **Potential for Misalignment**

If not installed correctly, the flange could cause the throttle body to sit slightly off-center, leading to uneven carburetion or throttle response. Precision during installation is critical.

6. **Limited Customization**

Unlike metal grommets, which can sometimes be machined or modified, rubber flanges are not easily adjustable. If your bike has unique mounting requirements, you may need to source a custom solution.

7. **Potential for Oil or Grease Contamination**

If oil or grease from the engine or throttle body comes into contact with the rubber flange, it can degrade the material over time. Regular maintenance to keep the area clean is recommended.

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### **Conclusion**

The Mikuni FVM36-200-1 rubber mounting flange is a high-quality upgrade for carbureted engines, offering significant improvements in vibration dampening, durability, and sealing compared to stock parts. It is particularly well-suited for riders who prioritize reliability, reduced noise, and long-term performance. However, it is not without trade-offs, such as the potential for slight throttle response changes or compatibility issues with certain bikes.

For most riders upgrading from worn stock grommets or those looking to enhance their bike s performance and comfort, the benefits of the Mikuni flange outweigh the drawbacks. It is a practical choice for both street and light track use, provided it is installed correctly and maintained properly.

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### **Recommendation**

If you are experiencing issues with rattling, worn grommets, or air leaks in your carbureted bike s throttle body setup, the Mikuni FVM36-200-1 flange is a strong recommendation. Ensure that your bike s model is compatible with this part by checking the mounting points and consulting your bike s service manual or a trusted mechanic if necessary.

- Clean the mounting area thoroughly before installation.

- Follow the manufacturer s installation instructions carefully.

- Consider using a high-quality gasket or sealant (if recommended) to enhance the flange s effectiveness.

- Inspect the flange periodically for signs of wear or damage, especially if you ride aggressively or in extreme conditions.

If you are unsure about compatibility or installation, consult a professional to avoid potential issues. For bikes with unique requirements or those running heavily modified setups, you may need to explore alternative solutions or custom parts.

Details:

8.5MM Bolt Hole - 70. Any damage claims may be exchanged for the identical item only. Flange Throat Depth - 25. Carb Spigot DOA.

Carb Bore Size - 40. Mikuni, 36-38mm Rubber Flange Adapter For Harley-Davidson Spigot-Type Carbs M-VM36-200K, Sold as: Each.

part #: mvm36200k prices

• $30.44-$40.93

specifications intakefuelmotorcycle:

• brand: Mikuni
• mpn: M-vm36-200k
• part type: Mounting Flange
• oe/oem part number: Fvm36-200-1

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• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

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