Yamaha - Float Valve Assembly | Carburetor Fuel Control | YF1-36264-48-40

Overview

If you’ve ever dealt with a carb that’s flooding or starving for fuel, there’s a good chance the float valve was the culprit. I’ve replaced a lot of these on Yamahas where the engine just wouldn’t idle right or kept loading up with fuel. The Yamaha Float Valve Assembly YF1-36264-48-40 helps regulate fuel inside the carb so it stays balanced and predictable. When it’s working right, the engine runs clean and steady without the guesswork.

Key Features

• Precise Fuel Level Control – Regulates fuel flow into the carburetor to maintain proper levels.

• Yamaha Engineered Fit – Designed to meet factory specifications for accurate sealing and operation.

• Smooth Valve Operation – Opens and closes consistently to prevent flooding or fuel starvation.

• Fuel-Resistant Materials – Built to handle constant fuel exposure and engine conditions.

• Direct Replacement Assembly – Installs easily during carburetor service or rebuild.

Engine & Boat Compatibility

The Yamaha Float Valve Assembly YF1-36264-48-40 is designed for Yamaha carbureted engines.

It is commonly used in Yamaha marine and recreational engines where maintaining proper fuel levels inside the carburetor is critical for performance and reliability. Always confirm compatibility using your engine model and parts diagram before installation.

FAQ

Q: What are signs of a bad float valve?
A: Fuel leaking, rough idling, or an engine that floods easily are common signs.

Q: Can a faulty float valve affect starting?
A: Yes, too much or too little fuel can make starting difficult.

Q: Is this part replaced during carb rebuilds?
A: Yes, it’s commonly replaced as part of a full carburetor service.

Q: Is installation difficult?
A: Not usually, but proper adjustment and cleanliness are important.

Q: Can debris cause this valve to fail?
A: Yes, dirt or buildup can prevent it from sealing properly.

• Supersessions
  YF1-36264-48-41