90504-ZS9-000 Recoil Starter Colr - Overview. The 90504-ZS9-000 Recoil Starter Colr is an essential component within the recoil starter system of Honda marine engine systems. It supports the starter mechanism by facilitating smooth and efficient engine ignition. Engineered to meet exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Specifically designed as a recoil starter collar to play a critical role