87533-ZW6-740 Throttle Mark - Overview. The 87533-ZW6-740 Throttle Mark is a specialized component for Honda marine engine systems. This part operates within the control system of the throttle mechanism, providing precise marking to aid in proper assembly and identification. Serving as an essential label for the throttle grip type, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM Genuine Honda part ensuring perfect match to f