```html
KTM 250-400-525 RS4 Engine Repair Manual: Years 2000 to 2003
The KTM 250-400-525 RS4 is a series of high-performance, off-road motorcycles designed for aggressive riding in challenging terrain.
Engine:
The RS4 series is powered by a potent, single-cylinder, four-stroke engine that delivers exceptional power and torque.
Frame and Suspension:
The motorcycle features a lightweight, tubular steel frame that provides exceptional torsional rigidity and handling precision. The advanced WP suspension system, with adjustable front and rear forks, ensures optimal damping and control in all riding conditions.
Chassis:
The RS4 boasts a sleek and aerodynamic chassis that reduces weight and enhances maneuverability. The ergonomic design, including adjustable handlebars and footpegs, allows riders to tailor the bike to their specific needs.
Brakes:
The high-performance Brembo brakes provide ample stopping power and control. The front brake features a 260mm disc, while the rear brake utilizes a 220mm disc.
Transmission:
The RS4 series is equipped with a reliable five-speed transmission that delivers smooth and precise shifting for optimal performance.
Fuel System:
The fuel-injected engine ensures optimal air-fuel mixture for improved power and fuel efficiency. The 250 RS4 has a 9.8-liter fuel tank, while the 400 and 525 RS4 models have 11-liter fuel tanks.
Electronics:
The RS4 models include a digital instrument panel that provides essential information such as speed, RPM, and fuel level. The advanced electronic ignition system ensures reliable starting and optimal performance.
Performance:
The KTM 250-400-525 RS4 series delivers exhilarating performance with a top speed of over 100 mph. The responsive handling and lightweight chassis allow for agile maneuvering and precise control.
Additional Features:
The RS4 models are equipped with a variety of additional features, including:
- Handguards for protection from flying debris
- Skid plate for underbody protection
- 18-inch front and 19-inch rear wheels for optimal off-road performance
The KTM 250-400-525 RS4 series is the ultimate choice for riders seeking an off-road motorcycle that combines power, agility, and durability. Whether racing through rugged terrain or navigating technical obstacles, the RS4 delivers an unparalleled riding experience.
```
KTM 250-525 SX-MXC-EXC engine repair manual.2000 to 2003.
Note, this is engine only, not the chassis.
Contents
1 SERVICE-INFORMATIONS
2 GENERAL INFORMATION
3 REMOVING AND REFITTING ENGINE
4 DISASSEMBLING ENGINE
5 SERVICING INDIVIDUAL COMPONENTS
6 ASSEMBLING ENGINE
7 ELECTRICAL
8 FUEL SYSTEM
9 TECHNICAL SPECIFICATIONS
10 PERIODIC MAINTENANCE SCHEDULE
11 WIRING DIAGRAMS
Models covers
2000 400 SX RACING 520 SX RACING 400/520 EXC RACING 400/520 EXC RACING USA
2001 400 SX 400 MXC 400 EXC 520 SX 520 MXC 520 EXC
2002 250 EXC 400 SX 400 MXC 400 EXC 520 SX 520 MXC 520 EXC
2003 250 EXC 450 SX 450 MXC 450 EXC 525 SX 525 MXC 525 EXC
