28414-ZY1-000 Starter Case B - Overview. The 28414-ZY1-000 Starter Case B is an essential component within the starter system of Honda marine engine systems. This part serves as a protective housing for the starter assembly, ensuring that critical starter motor parts are securely held and shielded from environmental factors and mechanical wear. Designed to maintain seamless integration with existing engine parts, it ensures optimal starter system functionality and durability, helping to keep you