This manual covers the Yamaha F100BET outboard motor, produced for the 2003 and 2004 model years. Designed for propulsion on watercraft, this four-stroke engine represents Yamaha's commitment to engineering quality and reliability. The F100BET is known for its robust performance and dependable operation, making it a premier choice for marine applications. This comprehensive parts catalogue provides detailed diagrams and part numbers for various components of the Yamaha F100BET. It is intended to assist owners, mechanics, and technicians in identifying and sourcing the correct parts for maintenance and repair. Coverage includes critical systems such as the top cowling, cylinder and crankcase, crankshaft and piston, valve train, carburetor, oil pump, fuel system, and starter assembly, ensuring the continued optimal performance of your outboard motor.