This comprehensive service, repair, and maintenance manual is specifically designed for the 1991 Yamaha 90TLRP outboard motor. It provides detailed instructions and guidance for all aspects of servicing and repairing your engine, ensuring a thorough understanding of each procedure. The manual is structured in a clear, step-by-step format, making it easy to follow and understand. Each chapter features exploded diagrams, placed strategically before each disassembly section, for easy identification of parts and accurate disassembly and assembly procedures. With its comprehensive coverage encompassing all aspects of the motor, this manual gives you the knowledge to perform a wide range of maintenance and repair tasks, from basic troubleshooting to complex overhauls.

The Yamaha 90TLRP outboard motor is a powerful and reliable engine designed for a variety of boating applications. This four-stroke, four-cylinder model boasts a displacement of 1402 cc and delivers a maximum power output of 90 horsepower. The 90TLRP features a robust and durable design, incorporating a cast-iron cylinder block and aluminum cylinder head. It is equipped with a digital ignition system for precise spark timing, ensuring smooth and efficient operation. The engine's advanced electronic fuel injection system provides optimal fuel economy and reduced emissions. The 90TLRP is also integrated with a low-maintenance, closed-loop cooling system for consistent and reliable performance. With its compact size and lightweight construction, this outboard motor is easily mounted on a range of boats, from small skiffs to larger fishing vessels.

Yamaha's 90TLRP outboard motor is built to excel in both performance and dependability. It features a gearcase with a large-diameter propeller shaft for increased thrust and efficiency. The engine's variable-pitch propeller allows for optimal performance at various boat speeds and load conditions. The 90TLRP boasts a comprehensive range of features aimed at enhancing user convenience, including an electric start system, a tilt steering system for easy maneuvering, and a remote control unit for intuitive operation. Yamaha's commitment to quality and innovation is evident in the 90TLRP's meticulous design, ensuring exceptional durability and a long service life. This outboard motor is backed by a robust warranty program, providing peace of mind to owners. The 90TLRP is a highly sought-after option for boaters seeking a reliable and powerful engine for a variety of leisure and commercial applications.