Yamaha - Float Chamber Body Carburetor Fuel Reservoir 69W-14381-20-00. Overview. This is the part of the carb that actually holds your fuel before it gets pulled into the engine. When it's clean and sealed right, the motor runs smooth and steady without any hesitation. But if the chamber gets warped, corroded, or clogged up, you'll start chasing fuel issues that don't make much sense at first. It's one of those components that has to be right for the whole carb to do its job properly.. Key Features. Fuel Reservoir Function - Holds and regulates fuel supply within the carburetor for consistent operation.. Precision Internal Design - Built to maintain proper fuel level and flow inside the carb system.. Durable Marine Construction - Designed to withstand fuel exposure, vibration, and harsh environments.. OEM Fitment Accuracy - Matches Yamaha specifications for correct alignment and sealing.. Engine & Boat Compatibility. Designed for Yamaha outboard engines equipped with carbureted fuel sy