This service manual covers the Mercury Mariner Sea Pro 10 HP outboard motor. Designed for reliable performance, these outboard motors are engineered to provide dependable power for a variety of marine applications. The 10 HP rating ensures sufficient thrust for smaller vessels and auxiliary power needs, while the robust construction typical of Mercury Mariner products emphasizes durability and longevity in demanding aquatic environments. This manual addresses various model years within the 10 HP Sea Pro line, offering comprehensive technical information. This comprehensive English-language service repair workshop manual is intended for mechanics and technicians. It provides detailed procedures for engine overhaul, fuel system maintenance, ignition system servicing, lower unit repair, and electrical system diagnostics. The manual includes essential troubleshooting guides, routine maintenance schedules, and specific technical data such as fluid capacities, recommended oil types, spark plug specifications, and water pump impeller replacement intervals. Its purpose is to equip users with the knowledge necessary to maintain, repair, and optimize the performance of their Mercury Mariner Sea Pro 10 HP outboard motor.