This Service Manual covers Mercury Outboard Motors with engine variants including 6, 8, 9.9, 10, and 15 HP, starting from the 1986 model year. These robust 2-stroke engines are designed for reliable performance in a variety of marine applications. Their engineering prioritizes durability and ease of operation, making them a trusted choice for boaters. Specific serial number ranges for USA and Belgium production are provided for accurate identification.

This comprehensive manual provides essential information for the maintenance, repair, and troubleshooting of your Mercury Outboard Motor. It details critical procedures for lubrication, cooling system service, and component replacement, including recommended intervals and specifications for oils and parts. With detailed technical specifications and clear instructions, this guide is an indispensable resource for owners, technicians, and mechanics seeking to ensure the optimal performance and longevity of their Mercury outboard engine.