This manual covers the Yamaha F100TXRX, a 100 horsepower four-stroke outboard motor manufactured in 1999. Designed for marine propulsion, this gasoline-powered engine is engineered for reliability and performance on the water. Its robust construction and advanced technology ensure efficient operation for a wide range of boating applications, reflecting Yamaha's commitment to quality in marine power solutions. The purpose of this comprehensive Service Repair Maintenance manual is to provide detailed guidance for the upkeep and repair of your Yamaha F100TXRX outboard motor. It includes essential information on disassembly, repair, assembly, and inspection operations, supported by exploded diagrams to aid in understanding complex components. This manual is an indispensable resource for owners, technicians, and mechanics seeking to maintain optimal performance and longevity of their marine propulsion system.