This manual covers the KTM 400 SMR, a high-performance supermoto motorcycle produced between 2000 and 2007. Known for its Austrian engineering and racing heritage, the 400 SMR blends the agility of a competition dirt bike with street-legal capabilities. Its four-stroke, single-cylinder engine, typically around 397cc and liquid-cooled, delivers robust power and torque suitable for enthusiastic riders. The model features a sophisticated SOHC valvetrain, a 6-speed sequential gearbox, and hydraulic disc brakes, all built upon a durable chromium-molybdenum steel trellis frame. This specialized machine is engineered for performance and demands precise maintenance to uphold its capabilities.

The purpose of this comprehensive English-language service repair manual is to provide detailed information for the engine and related powertrain components of the KTM 400 SMR. It covers essential areas including engine mechanicals, fuel and ignition systems, routine maintenance procedures, troubleshooting guides, and engine rebuild instructions. Technical specifications, torque values, and required special tools are also included. This manual is designed to assist owners, mechanics, and technicians in effectively maintaining, diagnosing, and repairing the engine, ensuring optimal performance and longevity of this specialized motorcycle.