🏷️ Basic Information Identification Make: KTM Model: 400/450 SX, MXC, XC, EXC, SMR, SXS RACING Applicable Years: 2000-2007 Engine Type Covered: 400cc and 450cc Four-Stroke Engines Codes Manual Code: Not specified in product information 👋 Introduction Market Position Target Audience: KTM owners and technicians working on 400/450cc off-road and supermoto models from 2000-2007. Value Proposition: Provides in-depth technical information to enable owners to perform their own maintenance and repairs, saving time and money compared to dealership services. Competitive Analysis Manual Comparison: Essential resource for enthusiasts and mechanics, offering a level of detail often exceeding basic owner's manuals. Key Features Detail Level: High level of detail suitable for complex engine repairs and diagnostics. Accessibility: Digital format offers portability and instant access for troubleshooting or reference. 📋 Manual Details Coverage Areas Primary Coverage: Engine Mechanical, Electrical, Diagnostics, Troubleshooting, Repair, Rebuild, Maintenance Model Variant Coverage: SX (Motocross), MXC (Cross-Country), XC (Cross-Country), EXC (Enduro), SMR (Supermoto), SXS (Racing Special) Page Count Estimated Page Count: Likely extensive, typically 300-600+ pages for detailed workshop manuals Manual Type Type: Digital Workshop Manual / Repair Manual Language Language: English (presumed, standard for technical manuals) Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Top End (Cylinder Head, Valves, Camshafts), Bottom End (Crankshaft, Connecting Rod, Piston), Cylinder Block, Lubrication System, Cooling System (Radiators, Hoses, Water Pump) Engine Management: Fuel Injection System (TPS, Injector, Fuel Pump, Regulator), Ignition System (CDI, Spark Plug), Sensors (MAP, Temperature, Crank Position) Electrical System: Wiring Diagrams, Battery, Charging System (Stator, Rectifier/Regulator), Lighting, Starter System Procedures Included Routine Maintenance: Oil Change Intervals and Specifications, Air Filter Cleaning/Replacement, Spark Plug Replacement, Valve Clearance Checks and Adjustment, Coolant Flush and Replacement Disassembly Reassembly: Complete engine teardown and reassembly procedures, including torque specifications for all fasteners. Troubleshooting: Diagnostic flowcharts for common starting, running, and performance issues. Fault code interpretation (if applicable). Performance Tuning: Information on carburetor/fuel injection adjustments, ignition timing (if adjustable), and basic engine performance tuning principles. Special Tools: Identification and usage instructions for specialized tools required for specific repair procedures. Technical Depth Depth: Comprehensive from basic owner maintenance to full engine rebuilds. Includes detailed specifications, diagrams, and step-by-step instructions. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Likely text-searchable PDF, allowing for quick information retrieval. Print Quality Resolution: Dependent on original source scan quality, typically clear for digital distribution. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Displacement Options: Approximately 398cc (400) and 449cc (450) (specific bore/stroke may vary by sub-model) Engine Configuration: Single Cylinder, Four-Stroke Engine Cooling: Liquid-Cooled Performance Horsepower Range: Typically 50-60+ HP (specific output varies by model and year) Torque Range: Typically 40-45+ lb-ft (specific output varies by model and year) Fuel System Fuel Delivery: Fuel Injection (EFI) for most models in this range, some earlier may have had Carburetion (check specific model year/variant). Ignition Type: Digital CDI Valve Train Valve Actuation: SOHC (Single Overhead Camshaft) or DOHC (Double Overhead Camshaft) depending on specific engine variant within the 400/450 range. 🔧 Transmission Standard Type: Constant Mesh, Sequential, Dog-Shifted Manual Transmission Gear Count: Typically 5 or 6 Speed Features Clutch Type: Hydraulically Actuated Wet Multi-Plate Clutch Gear Ratio Information: Detailed gear ratios and final drive ratios will be provided within the manual. 📐 Dimensions Exterior Body Style: Dirt Bike / Motocross / Enduro / Supermoto Styling Weights Dry Weight: Varies significantly by model, typically between 105-120 kg (230-265 lbs) un-fueled. 🛡️ Safety Features Ratings Crash Test Data: N/A for off-road motorcycles Active Features Braking System: Hydraulic Disc Brakes (Front and Rear). Specific caliper and rotor sizes will be detailed. Suspension System: High-performance, adjustable Upside-Down (USD) front forks (e.g., WP Suspension) and Monoshock rear suspension. Detailed adjustment and maintenance procedures covered. Passive Features Frame Construction: Chromium-Molybdenum Steel Trellis Frame (characteristic of KTM). 💡 Technology Features Infotainment Features: Minimal to none; focus is on performance and off-road capability. Typically a basic digital hour meter/odometer. Driver Assistance Features: N/A (Off-road motorcycle design prioritizes rider control and feedback over electronic aids). Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10-15 hours of riding, or as specified in the manual for different riding conditions. Manual will detail exact intervals. Air Filter Service: Frequent cleaning/replacement recommended, especially in dusty conditions. Manual will provide guidance. Valve Clearance Check: Typically every 20-30 hours of riding. Specific intervals and procedures are critical and found in the manual. Fluid Specifications Engine Oil Type: High-quality motorcycle-specific 4-stroke engine oil, typically SAE 10W-50 or 15W-50 (JASO MA/MA2 certified). Specific recommendations in manual. Coolant Type: Ethylene Glycol based motorcycle coolant, usually a 50/50 mix with distilled water. Manual will specify grade and capacity. Brake Fluid Type: DOT 4 Hydraulic Brake Fluid. Clutch Fluid Type: Mineral Oil (e.g., Magura Blood or equivalent) for hydraulic clutch systems. Manual will...