24221-ZV4-010 Click Assist Spring - Overview. The 24221-ZV4-010 Click Assist Spring is a vital component within Honda marine engine systems, specifically working in the rigging assembly to improve the gear shifting experience. This spring provides a tactile clicking feedback that aids in smooth and positive gear engagement, supporting the mechanical motion system of your outboard engine to ensure reliable and precise operation. Carefully crafted to meet Honda's exact factory specifications, it i