This manual covers the KTM LC4, a line of high-performance off-road motorcycles known for their robust, high-torque, liquid-cooled single-cylinder engines. Developed with a 'Ready to Race' philosophy, the LC4 platform has been a cornerstone for KTM since the late 1980s, evolving through numerous iterations to enhance performance and durability across various disciplines including Enduro, Motocross, and Supermoto. The 2003 model year, in particular, features LC4 engines ranging from 400cc to 660cc, celebrated for their versatility and strong mid-range power delivery, making them competitive against contemporaries from Honda, Yamaha, Suzuki, and Kawasaki.
This comprehensive factory service repair manual provides detailed information for the maintenance, repair, and overhaul of KTM 400cc to 660cc LC4 engines. It covers essential areas including engine mechanicals, fuel and ignition systems, lubrication, cooling, exhaust, and electrical components. Within its pages, you will find routine maintenance procedures, troubleshooting guides for common issues, step-by-step repair instructions, engine rebuild procedures, and critical technical specifications. This manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance and longevity of their KTM LC4 motorcycle.
KTM 400-660 LC4 ENGINE 2003 Factory Service Repair Manual Download PDF.
This is the COMPLETE official full factory service repair manual for the KTM 400-660 LC4 ENGINE 2003.
DOWNLOAD NOW KTM 400-660 LC4 ENGINE 2003 SERVICE MANUAL!
The workshop manual assumes knowledge of the contents of the operation manual. This applies especially for the safety regulations. The workshop manual describes repairs to the engine and components for which more effort and appropriately qualified technicians are required.
The engines are developed for a wide range of applications. A wide range of variants ensures that the respective special requirements are met.
The engine is equipped according to the installation case, i. e. not all the parts and components described in this documentation are installed in your engine necessarily.
The engine may only be used, maintained and repaired by persons who are familiar with this and are aware of the risks involved.
The documentation of the workshop manual has been created based on the engine available at the time of going to press.
There may be deviations in the descriptions, illustrations and parts due to further developments.
The maintenance work described in the operation manual and in the workshop manual must be carried out on schedule and completely. The maintenance personnel must have the necessary technical knowledge to perform the work. Safety and protection devices which are removed during maintenance work must be replaced again afterwards.
KTM 400-660 LC4 ENGINE 2003 Factory Service Repair Manual Download PDF.
This is the COMPLETE official full factory service repair manual for the KTM 400-660 LC4 ENGINE 2003.
DOWNLOAD NOW KTM 400-660 LC4 ENGINE 2003 SERVICE MANUAL!
The workshop manual assumes knowledge of the contents of the operation manual. This applies especially for the safety regulations. The workshop manual describes repairs to the engine and components for which more effort and appropriately qualified technicians are required.
The engines are developed for a wide range of applications. A wide range of variants ensures that the respective special requirements are met.
The engine is equipped according to the installation case, i. e. not all the parts and components described in this documentation are installed in your engine necessarily.
The engine may only be used, maintained and repaired by persons who are familiar with this and are aware of the risks involved.
The documentation of the workshop manual has been created based on the engine available at the time of going to press.
There may be deviations in the descriptions, illustrations and parts due to further developments.
The maintenance work described in the operation manual and in the workshop manual must be carried out on schedule and completely. The maintenance personnel must have the necessary technical knowledge to perform the work. Safety and protection devices which are removed during maintenance work must be replaced again afterwards.
