This manual covers the 125 SX, 200 SX, 125 MXC, 200 MXC, 125 EXC, and 200 EXC models from the year 2000. These competition motorcycles are renowned for their lightweight design, agile handling, and potent two-stroke engines, engineered for demanding off-road conditions. A strong heritage in racing and its "Ready to Race" philosophy are evident in the performance and reliability of these machines, making them a popular choice for enthusiast riders and racers alike. This comprehensive service and repair manual provides detailed information for professional technicians and experienced DIY mechanics. It covers all aspects of maintenance, including routine service, major overhauls, troubleshooting, and diagnostics. Key areas include in-depth procedures for the engine, transmission, chassis, suspension, brakes, and electrical system, along with technical specifications and necessary special tools. The manual's goal is to ensure owners can effectively maintain and repair their vehicles, maximizing performance and longevity. 🏷️ Basic Information Identification Make: KTM Model: 125 SX, 200 SX, 125 MXC, 200 MXC, 125 EXC, 200 EXC Year: 2000 Codes Chassis Code Prefix: Various depending on specific model (e.g., SX, EXC, MXC) Engine Code Prefix: Various depending on specific model and displacement 👋 Introduction Market Position Category: Competition Motorcycles (Motocross, Enduro, Cross-Country) Target Demographic: Enthusiast riders, racers, and off-road recreational users Competitive Analysis Key Competitors: Yamaha YZ125, Honda CR125R, Suzuki RM125, Kawasaki KX125; similar displacement models from other European manufacturers Key Features Vehicle Characteristics: Lightweight, agile, potent 2-stroke engines, high-performance suspension, designed for demanding off-road conditions Manual Value Proposition: Provides in-depth knowledge for maintaining peak performance and ensuring longevity of these specialized off-road machines 📋 Manual Details Coverage Areas Primary Coverage: Complete service, repair, and maintenance for KTM 125/200 SX, MXC, EXC models Secondary Coverage: Troubleshooting, diagnostics, specifications, and overhaul procedures Page Count Estimated Page Count: Likely 300-500 pages (typical for comprehensive service manuals of this era) Manual Type Type: Service and Repair Manual Target Audience: Professional technicians and experienced DIY mechanics Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, tuning, lubrication, cooling system, fuel system (carburetor), exhaust system Transmission: Gearbox disassembly, assembly, inspection, clutch operation, lubrication Chassis And Frame: Frame inspection, swingarm, linkage, bearings, headstock bearings Suspension: Front fork (WP) servicing, rear shock absorber (WP) servicing, adjustments, seal replacement Brakes: Front and rear brake system maintenance, bleeding, caliper service, pad replacement, master cylinder service Electrical System: Ignition system, lighting, wiring diagrams, charging system, battery maintenance Fuel System: Carburetor (likely Keihin or Mikuni) disassembly, cleaning, jetting, fuel tank, petcock Cooling System: Radiator, hoses, coolant specifications, thermostat (if applicable) Exhaust System: Exhaust pipe and silencer maintenance, repacking (for 2-stroke expansion chambers) Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment, spark plug inspection/replacement, air filter cleaning Major Overhaul: Top-end rebuild (piston, rings, cylinder), bottom-end rebuild (crankshaft, bearings), gearbox overhaul Troubleshooting: Diagnosis of common problems, fault finding charts Component Replacement: Step-by-step guides for replacing various parts and sub-assemblies Suspension Tuning: Sag adjustment, compression and rebound damping adjustments Carburetor Tuning: Jetting procedures, idle speed adjustment, mixture screw settings Technical Depth Depth: Comprehensive, covering everything from basic checks to complete engine and transmission rebuilds Diagnostic Capabilities: Detailed troubleshooting guides, wiring diagrams, component testing procedures Special Tools: Identification of required special tools for specific procedures 📊 Manual Specifications File Format Format: PDF Searchable: Likely searchable text (common for professional PDF manuals) Print Quality Quality: High-resolution, suitable for printing clear diagrams and text Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: 2-stroke, single-cylinder Displacement 125: 124.8 cc Displacement 200: 193 cc Bore Stroke 125: 54 mm x 54.5 mm (approximate) Bore Stroke 200: 62.5 mm x 65 mm (approximate) Cooling: Liquid-cooled Power Delivery: Aggressive, high-revving powerband characteristic of 2-stroke performance engines Performance Horsepower 125: Approximately 30-35 HP (varies by model and tuning) Horsepower 200: Approximately 38-42 HP (varies by model and tuning) Fuel System Carburetor Type: Likely Keihin PWK or Mikuni VM series (specific size varies by model) Fuel Type: Unleaded gasoline (91-98 RON), mixed with 2-stroke oil Mixing Ratio: Typically 1:30 to 1:50 (oil:fuel), refer to manual for exact specification 🔧 Transmission Standard Type: 6-speed constant mesh Optional Optional Transmission: N/A Features Clutch: Wet multi-disc clutch (hydraulic actuation) Gear Ratios: Specific ratios detailed within the manual, crucial for performance tuning Transmission Oil Spec: Specific gear oil type (e.g., SAE 80 or 10W-40 motorcycle gear oil), consult manual for exact specification and capacity 📐 Dimensions Exterior Wheelbase: Varies by model (approx. 1440-1455 mm) Seat Height: Varies by model (approx. 950-960 mm) Weights Dry Weight: Varies by model (approx. 95-105 kg) Fuel Tank Capacity: Approximately 7-9 liters 🛡️ Safety Features Ratings Safety Ratings: N/A (Off-road motorcycles are not typically subjected to road vehicle safety crash tests) Active Features Braking System: Hydraulic disc brakes front and rear (component supplier...