31110-ZY1-800ZA Flywheel *tblack* - Overview. The 31110-ZY1-800ZA Flywheel *tblack* is an essential component within Honda marine engine systems. This flywheel plays a crucial role in storing rotational energy and delivering smooth engine operation, particularly designed for self-starter functionality in Honda outboard engines. Manufactured to meet strict factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Th