1989 Yamaha 4 SF Outboard service repair maintenance manual. Factory

The 1989 Yamaha 4SF Outboards manual presents procedures in a step-by-step format, compiled to provide an easy-to-read, handy reference for mechanics. It contains comprehensive explanations of all disassembly, repair, assembly, and inspection operations. Each chapter includes exploded diagrams before each disassembly section for ease in identifying the correct procedures. The manual is completely bookmarked and searchable, covering everything about the motor. It is useful for both professional mechanics and DIY enthusiasts.