This manual covers the 1991 Yamaha C55ELRP Outboard Motor, a 2-stroke marine propulsion unit designed for reliable performance. Engineered for durability and efficiency, this outboard motor is built to provide dependable service in marine environments. Its robust construction and specific design ensure optimal operation for various watercraft applications. This Factory Service Repair Maintenance Manual in English provides comprehensive guidance for the Yamaha C55ELRP. It details all disassembly, repair, assembly, and inspection operations in a step-by-step format, enhanced with exploded diagrams. The manual serves as an essential resource for owners, technicians, and mechanics to ensure proper maintenance and repair, covering recommended service intervals, oil types, and capacities.