Yamaha - Body, throttle 1 - 6CB-13751-10-00Yamaha Throttle Body 1 Air Intake Component 6CB 13751 10 00 Overview When throttle response starts feeling off, this is one of the first places I look. The throttle body controls how much air your engine gets, and that directly affects how it runs and responds. If its worn, dirty, or not sealing right, youll notice hesitation or uneven power pretty quickly. Getting a clean, properly functioning throttle body back in place makes the motor feel sharp