This comprehensive service manual provides detailed instructions and technical specifications for the Yamaha RX-E400 and NX-E400 electric motorcycles. It serves as an invaluable resource for technicians and mechanics, offering step-by-step guidance on a wide range of maintenance and repair procedures. The manual covers everything from basic troubleshooting and routine maintenance tasks to complex system overhauls. You'll find detailed diagrams, illustrations, and clear explanations to assist you in understanding the motorcycle's intricate systems and components. Whether you're performing a simple oil change or addressing a more complex electrical issue, this manual equips you with the necessary knowledge to confidently diagnose and repair your Yamaha RX-E400 or NX-E400 electric motorcycle.