16211-ZG0-010 Carb Insulator - Overview. The 16211-ZG0-010 Carb Insulator is an essential part of the Honda marine engine fuel system. This genuine OEM component functions as a thermal barrier between the carburetor and the engine block, preventing heat transfer that can lead to fuel vaporization issues and engine performance problems. Designed to rigorous factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. G