This comprehensive repair manual covers Kawasaki KX125 and KX250 two-stroke motorcycles manufactured between 2003 and 2005. It provides detailed instructions and information for all aspects of maintenance and repair, empowering you to confidently tackle any project.

From routine maintenance tasks like oil changes and air filter cleaning to complex engine rebuilds, this manual covers it all. You'll find detailed diagrams, step-by-step instructions, and clear explanations for every procedure.

The manual includes sections on:

* **General Information:** Get familiar with your motorcycle's specifications, safety precautions, and important information for proper operation.
* **Routine Maintenance:** Learn how to perform regular maintenance tasks like oil changes, air filter cleaning, and spark plug replacement.
* **Engine Removal and Installation:** Master the process of removing and reinstalling the engine, a crucial procedure for major repairs.
* **Fuel System:** Understand the fuel system's components and learn how to diagnose and repair fuel-related issues.
* **Lubrication and Cooling System:** Gain insight into the lubrication and cooling systems, ensuring optimal performance and longevity.
* **Engine Specifications:** Find detailed engine specifications for your specific model, including valve clearance, ignition timing, and other essential parameters.
* **Transmission, Drive Chain, and Sprockets:** Learn how to maintain and repair the transmission, drive chain, and sprockets, ensuring smooth power transfer.
* **Steering System:** Understand the steering system's components, learn how to adjust steering geometry, and troubleshoot steering issues.
* **Shocks:** Learn about the suspension system, how to adjust shock settings, and diagnose suspension problems.
* **Bodywork:** Find information on removing, reinstalling, and repairing bodywork components for cosmetic maintenance.
* **Intake and Exhaust:** Learn about the intake and exhaust systems, how to maintain them, and troubleshoot performance issues related to airflow.
* **Electrical System:** Understand the electrical system's components, learn to diagnose electrical problems, and perform repairs.
* **Advanced Troubleshooting:** Gain valuable insights into advanced troubleshooting techniques for complex mechanical issues.

This manual is an essential resource for any KX125 or KX250 owner, whether you're a seasoned mechanic or a beginner enthusiast. It provides the knowledge and guidance you need to keep your motorcycle running smoothly for years to come.

The 2003-2005 Kawasaki KX125 and KX250 were high-performance, off-road motocross motorcycles designed for experienced riders seeking speed and agility. These 2-stroke machines were known for their lightweight frames and powerful engines, making them highly competitive in the motocross world. The KX125, with its 124cc motor, offered nimble handling and responsiveness for smaller riders or those seeking a lighter and more manageable ride. On the other hand, the KX250, equipped with a 249cc engine, delivered impressive power and torque, making it a formidable competitor in the 250cc class. Both models featured a robust steel frame, KYB suspension with adjustable settings, and responsive hydraulic disc brakes. Notable features included a progressive linkage rear suspension system, allowing for better traction and control, and a lightweight aluminum swingarm for enhanced maneuverability. The KX125 and KX250 were equipped with a six-speed transmission, providing riders with a wide range of gear ratios for various track conditions.

These motorcycles were designed to be incredibly adaptable and customizable, enabling riders to fine-tune their performance to their specific preferences and riding styles. The use of aftermarket parts and modifications was common among owners, allowing for further improvements in suspension, power, and aesthetics. The 2003-2005 Kawasaki KX125 and KX250 were highly successful machines, garnering respect in the motocross community for their performance and reliability. They were popular choices for both amateur and professional riders, proving their capabilities in competitive environments. However, these models were replaced with newer, more modern iterations in subsequent years. Despite their age, these motorcycles still retain a dedicated following, with many enthusiasts appreciating their classic design and potent handling characteristics. Today, these motorcycles are sought after by collectors and riders looking for a powerful and enduring piece of motocross history.