CARBURETOR FLOAT 11489M REC6G1-14985-00

Function and technical context

The carburetor float is an essential component of the fuel delivery system on Mercury and Yamaha outboard engines. Its main function is to regulate the petrol level within the carburetor float chamber, ensuring that the engine receives the exact amount of fuel necessary for optimal operation. Working within the carburetion system, this part maintains the balance between the supply of petrol and the needs of the engine at different rpm regimes. A defective buoy can cause imbalances in the air-fuel mixture, causing loss of power, excessive petrol consumption, difficult starts and intermittent failures during navigation.

When to replace this part?

The most common symptoms of a worn carburetor float include fluctuations in the idle speed, loss of stability in acceleration, abnormal fuel consumption and difficulties in maintaining stable revolutions while cruising. Although there is no specific fixed maintenance interval for this component, it is recommended to inspect its condition during each seasonal service, especially if the engine has been stopped or exposed to prolonged wet conditions. Preventive float replacement is an economical measure that prevents more serious carburetor problems and ensures reliable engine performance in any boating situation.

Engine Compatibility

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers