This manual covers the CR125 and WR125 models from the 2007 model year. With its rich heritage in off-road racing, these motorcycles have been engineered for performance and reliability. The CR series represents a motocross focus, while the WR series typically denotes enduro or cross-country variants. These 125cc 2-stroke machines are designed for demanding off-road use, offering a competitive edge through their potent engines and agile handling. This manual provides comprehensive information for owners and technicians working with these respected off-road motorcycles. This complete service repair manual provides detailed guidance for the maintenance, troubleshooting, and repair of your CR125 or WR125. It covers all essential systems, including the engine, cooling system, exhaust valve, frame, suspensions, wheels, brakes, and electrical system. The manual includes procedures for scheduled maintenance, routine checks, fluid changes, and component rebuilds, along with diagnostic steps for common issues and necessary adjustments. With hundreds of detailed illustrations, diagrams, and wiring schematics, this 418-page English language manual is an indispensable resource for both do-it-yourself enthusiasts and experienced mechanics seeking to maintain their vehicle's optimal performance.