The Mercury Outboard 1986 & UP 6HP 8HP 9.9HP 10HP & 15HP Service Manual is a comprehensive guide designed to assist technicians, boat owners, and enthusiasts in maintaining, servicing, and repairing Mercury outboard motors manufactured from 1986 onwards with engine capacities ranging from 6 to 15 horsepower.

This service manual provides detailed instructions, diagrams, and specifications to facilitate various maintenance tasks, troubleshooting procedures, and repairs for Mercury outboard engines within the specified range. It covers a wide array of topics including but not limited to:

1. Engine assembly and disassembly procedures.
2. Routine maintenance tasks such as oil changes, lubrication, and filter replacements.
3. Electrical system diagnosis and repair including ignition systems and wiring diagrams.
4. Fuel system maintenance and adjustments.
5. Cooling system inspection and repair.
6. Propeller and gearcase maintenance.
7. Powerhead and cylinder block servicing.
8. Troubleshooting common issues and malfunctions.
9. Proper storage and winterization procedures.
10. Safety precautions and guidelines for working on Mercury outboard motors.

This service manual is an invaluable resource for individuals looking to maintain peak performance and extend the lifespan of their Mercury outboard engines. Whether you're a seasoned marine technician or a boat owner looking to perform DIY maintenance, this manual provides the necessary information and guidance to keep your outboard motor running smoothly and reliably.