This manual covers the YP125D and YP150D models from 2001. A company with a rich heritage in powered products, designed these maxi-scooters to provide a blend of comfort, practicality, and performance suitable for urban commuting and longer journeys. The YP series reflects dedication to quality engineering, ensuring reliability and a satisfying riding experience for owners. This comprehensive service repair manual provides essential information for maintaining and repairing your YP125D or YP150D. It details procedures for engine overhaul, chassis maintenance, and electrical system servicing, including fuel injection, ignition, and lighting. The manual also covers routine maintenance, troubleshooting common issues, and provides detailed technical specifications and wiring diagrams, empowering DIY enthusiasts and professional technicians alike to keep the vehicle in optimal condition.