This comprehensive KTM Engine Service Repair Manual provides detailed instructions and high-quality diagrams for servicing and repairing your 2004 KTM 250 EXC RACING, 450 SX, MXC, EXC RACING, and 525 SX, MXC, EXC RACING motorcycles. The manual covers a wide range of topics, including: * **Service Information:** Essential information to get you started on your repair journey. * **General Information:** An overview of the KTM engine and its components. * **Removing and Refitting Engine:** Detailed instructions on how to remove and reinstall the engine. * **Disassembling the Engine:** Step-by-step guidance for disassembling the engine for repairs. * **Servicing Individual Components:** Instructions for servicing and repairing individual engine components. * **Assembling the Engine:** Clear and easy-to-follow instructions for reassembling the engine. * **Electrical:** A section dedicated to the electrical system of your KTM motorcycle. * **Troubleshooting:** Helpful tips and information for diagnosing and resolving engine problems. * **Technical Specifications:** Essential technical data for your motorcycle. * **Periodic Maintenance Schedule:** A schedule for regular maintenance tasks to keep your KTM running smoothly. * **Wiring Diagrams:** Detailed wiring diagrams for your motorcycle's electrical system. This manual is your go-to resource for all your KTM engine repair needs. The detailed instructions and clear illustrations make it easy to understand and follow, regardless of your experience level.

## The KTM 2004 Lineup: A Peak in Off-Road Dominance The 2004 model year saw KTM, the renowned Austrian motorcycle manufacturer, release a potent trio of off-road machines: the 250 EXC RACING, the 450 SX, MXC, and EXC RACING, and the 525 SX, MXC, and EXC RACING. These motorcycles represented the pinnacle of KTM's dedication to performance and innovation in their respective segments, namely motocross, enduro, and supercross. The 250 EXC RACING, with its nimble handling and potent 250cc engine, was a favorite among enduro riders, offering exceptional agility and responsiveness in challenging off-road conditions. The 450 SX, MXC, and EXC RACING models, powered by a powerful 450cc engine, provided thrilling performance both on the motocross track and in the demanding world of enduro, catering to riders seeking raw power and a competitive edge. Finally, the 525 SX, MXC, and EXC RACING, with their robust 525cc engine, were designed for riders wanting maximum torque and outright power, dominating both motocross and enduro competitions. Each model in the 2004 lineup boasted advanced features that set them apart. The KTM 250 EXC RACING, 450 SX, MXC, and EXC RACING, and 525 SX, MXC, and EXC RACING all featured improved suspension systems, incorporating WP components for optimal handling and rider comfort. The engines were meticulously designed for optimal power delivery and reliability, with advancements in fuel injection and exhaust systems. These bikes also utilized cutting-edge materials like lightweight aluminum frames, which contributed to their responsive handling and exceptional maneuverability. The ergonomic design of the KTM 2004 models prioritized rider comfort and control, featuring adjustable handlebars, footpegs, and seats. The result was a trio of motorcycles that delivered top-of-the-line performance, reliability, and overall rider experience. Whether tackling challenging trails, soaring through motocross tracks, or facing the rigors of enduro competitions, the 2004 KTM models embodied the spirit of true off-road excellence.