50343-ZV1-300 Spring - Overview. The 50343-ZV1-300 Spring is a crucial rigging component that supports the mechanical system of Honda marine engines. It functions as a rod adjusting spring, contributing to the precise operation and adjustment of engine linkages. Designed to maintain the integrity of the marine engine's rigging, this spring ensures reliable responsiveness and proper tension within the control systems, helping to keep your equipment operating efficiently and dependably.. Key Featu