Yamaha - Float Chamber Assembly Carburetor Component 6C5-14180-22-00. Overview. When a carb isn't feeding fuel right, this is usually where the problem starts. The float chamber assembly controls how fuel is stored and delivered before it enters the engine, so if it's off, everything else is too. I've seen motors run rough, flood, or starve just from issues in this section. Getting a clean, properly functioning assembly in place keeps the engine running smooth and predictable.. Key Features. • Fuel Level Control System - Maintains proper fuel storage and delivery inside the carburetor.. • Consistent Fuel Supply - Helps ensure steady flow for smooth engine operation.. • OEM Fit Accuracy - Matches Yamaha factory specs for proper sealing and alignment.. • 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.. Replaces / superseded