This manual covers the British Seagull 45/55/75/80/90/102/125/170 Series Outboard models, produced for all years. These robust, 2-stroke outboard motors are renowned for their reliability and straightforward engineering, making them a trusted choice for various marine applications. The series offers a range of power outputs, from 4.5 HP to 17 HP, suitable for a wide spectrum of small to medium-sized watercraft. Their water-cooled systems and gasoline fuel requirements, mixed with oil for 2-stroke operation, ensure consistent performance on the water. This comprehensive Factory Service Repair Manual provides essential information for the maintenance, repair, and troubleshooting of your British Seagull outboard. It includes detailed step-by-step instructions, clear illustrations, and technical diagrams to guide you through routine maintenance procedures, tune-ups, and advanced diagnostic processes. The manual covers technical specifications, drivetrain information including forward, neutral, and reverse gears, and offers an extensive troubleshooting guide to help resolve common issues, ensuring your outboard motor remains in optimal working condition.