This manual covers Mercury FORCE Outboard Motors manufactured between 1984 and 1999. These 2-stroke engines, ranging from 3hp to 150hp across various cylinder configurations, were engineered for reliable performance on the water. The comprehensive coverage extends to specific models such as the FORCE 4HP, 7.5HP, 9.9HP, 15HP, 25HP, 35HP, 40HP, 50HP, 60HP, 70HP, 75HP, 85HP, 90HP, 120HP, 125HP, and 150HP, ensuring detailed support for a wide array of applications. This repair, service, and workshop manual provides detailed, illustrated, step-by-step instructions for maintenance, repair, and troubleshooting. It covers essential systems including the engine, fuel system, lubrication and cooling, transmission, steering, electrical system, and intake/exhaust. With detailed part breakdowns and zoomable illustrations, this manual is an indispensable resource for owners, mechanics, and technicians to effectively maintain and repair their Mercury FORCE outboard motors.