This service repair manual covers the Force 150 hp 5-cylinder, 2-stroke outboard motor manufactured between 1990 and 1994. Engineered for reliability and performance, these gasoline-powered outboard motors are designed for a variety of marine applications. This manual provides comprehensive guidance for maintaining, repairing, rebuilding, refurbishing, and restoring these specific models, ensuring their continued operational excellence on the water. The purpose of this manual is to serve as an authoritative resource for all aspects of the Force outboard motor. It details diagnostic and repair procedures, general maintenance schedules, and specific instructions for the fuel system, ignition and electrical system, lubrication and cooling, powerhead overhaul, lower unit, trim and tilt, remote controls, and starter. With complete step-by-step instructions, included diagrams, illustrations, wiring schematics, and detailed technical data such as sizes, clearances, capacities, and tightening torques, this English-language manual is an essential tool for owners and technicians alike.