Yamaha - Float Carburetor Fuel Control Component 6BX-14985-00-00. Overview. If a carbureted motor is running too rich, too lean, or just inconsistent, the float is usually part of the story. This piece controls the fuel level inside the carb, and when it's off, everything downstream feels it. I've seen engines flood out or struggle to stay running just from a worn float. Getting this dialed in keeps fuel delivery steady and the engine running the way it should.. Key Features. • Fuel Level Regulation - Maintains proper fuel height inside the carburetor.. • Stable Float Operation - Moves smoothly to prevent flooding or fuel starvation.. • OEM Fit Accuracy - Matches Yamaha factory specs for correct alignment and function.. • Fuel Resistant Construction - Built to handle constant fuel exposure and engine heat.. Engine & Boat Compatibility. Verify compatibility with your specific Yamaha outboard model and part number before installation.. FAQs. Q1: What are signs this float is failing?A: Fu