This comprehensive workshop service repair manual provides detailed instructions and technical information for maintaining and repairing your KTM 400 450 SX MXC XC models from 2000 to 2007. It covers all models, engines, trim levels, and transmission types. The manual is organized for easy navigation, with detailed information on various systems: * **General Information** provides an overview of your motorcycle. * **Fuel System** details how to inspect, service, and repair your bike's fuel system components. * **Cooling System** guides you through the maintenance and troubleshooting of your cooling system. * **Engine Top End** includes instructions for disassembling, inspecting, and reassembling the engine's top end components. * **Clutch** provides detailed information on clutch inspection, adjustment, and repair. * **Engine Lubrication System** covers the maintenance and repair of your lubrication system. * **Engine Removal/ Installation** offers step-by-step instructions for removing and installing your engine. * **Crankshaft/ Transmission** includes information on inspecting, servicing, and repairing the crankshaft and transmission. * **Wheels/ Tires** details how to maintain and repair your wheels and tires. * **Final Drive** provides detailed information on the final drive system. * **Brakes** guides you through the inspection, adjustment, and repair of your brake system. * **Suspension** includes information on suspension maintenance and repair. * **Steering** details how to inspect and service your steering system. * **Frame** covers the inspection and repair of your motorcycle's frame. * **Electrical System** includes wiring diagrams and troubleshooting and repair information for your electrical system. * **Appendix** offers additional information and specifications. This manual is an invaluable resource for motorcycle owners, mechanics, and enthusiasts who want to perform their own maintenance and repairs. It provides the same information found in service manuals used by professional mechanics and will help you confidently diagnose and repair your KTM motorcycle.

The KTM 400 and 450 SX, MXC, and XC models, produced between the years 2000 and 2007, represent a significant chapter in KTM's history, solidifying their position as a leading force in the off-road motorcycle world. These motorcycles were designed for a variety of uses, from motocross racing (SX) to cross-country racing (XC), offering riders a blend of performance, durability, and versatility. The 400 and 450 models were powered by single-cylinder, four-stroke engines, renowned for their potent power delivery and responsiveness. The SX versions, designed for motocross tracks, were characterized by their lightweight construction, aggressive suspension setup, and powerful engines, tuned for optimal performance on tight, technical circuits. The MXC models, intended for a broader range of off-road riding, featured a more balanced suspension setup and slightly more street-legal features, making them suitable for both racing and recreational riding. The XC models, geared towards cross-country racing and adventure riding, emphasized long-distance comfort, fuel efficiency, and the ability to handle challenging terrain. These KTM models embodied the Austrian manufacturer's commitment to innovation and quality. The development of lightweight yet robust aluminum frames, sophisticated suspension systems, and advanced engine technology, set these motorcycles apart from their competitors. The KTM 400 and 450 SX, MXC, and XC models garnered widespread acclaim from professional racers to recreational riders, earning numerous championships and becoming highly sought-after motorcycles for their performance, reliability, and overall riding experience. The models' enduring legacy continues to inspire riders today, with their impact felt in the design and development of contemporary off-road motorcycles. The detailed workshop service manual, covering these models from 2000 to 2007, provides comprehensive information on maintenance, repair, and troubleshooting, empowering owners to keep these high-performance motorcycles in peak condition for years to come.