This manual covers the Yamaha 225DET outboard motor from the 2006 model year. Engineered for reliability and performance, this engine is designed to provide dependable power for a variety of marine applications. Its robust construction and advanced systems ensure a superior boating experience, making it a trusted choice for demanding conditions. This comprehensive Service & Repair Manual, written in English, provides detailed information for maintaining and repairing your Yamaha 225DET. It includes complete disassembly and assembly procedures, precise torque specifications, and thorough inspection guidelines for critical components such as the ignition, starting, and charging systems, as well as the power trim and tilt system. A detailed troubleshooting guide is also included to help diagnose and resolve issues efficiently, making it an indispensable resource for both professional mechanics and DIY enthusiasts.