Yamaha - Throttle Body Assembly Air Intake Component 6P2-13750-00-00. Overview. Throttle response is one of the first things you notice when something's off with an engine. I've worked on setups where the motor felt sluggish or uneven, and it came down to the throttle body not doing its job cleanly. When this assembly is right, airflow stays smooth and the engine reacts exactly how you expect it to. It's a key piece in keeping acceleration crisp and control predictable out on the water.. Key Features. • Complete Throttle Body Assembly - Provides a full replacement for proper airflow control.• Precise Air Intake Regulation - Helps maintain balanced air delivery for efficient combustion.• OEM Fit and Function - Built to Yamaha specifications for seamless integration.• Responsive Throttle Performance - Supports smooth acceleration and consistent engine response.. Engine & Boat Compatibility. Designed for Yamaha outboard engines equipped with electronic fuel injection systems. Commonly use