This manual covers the 450 SX-F, 505 SX-F, and 450 SXS-F models produced between 2007 and 2011. These high-performance off-road motorcycles are renowned for their lightweight chassis, powerful single-cylinder engines, and advanced suspension systems, embodying a 'Ready to Race' philosophy. Engineered for competitive motocross and supercross, these bikes offer exceptional handling and responsiveness, consistently earning accolades and victories in professional racing. This comprehensive workshop service repair manual provides detailed information necessary for the maintenance and repair of your motorcycle. It covers all essential systems, including the engine, transmission, clutch, chassis, suspension, brakes, and electrical system. With step-by-step instructions, diagnostic procedures, torque specifications, and fluid recommendations, this manual is an invaluable resource for owners and technicians alike, ensuring optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: KTM Model: 450 SX-F, 505 SX-F, 450 SXS-F Covered Years: 2007, 2008, 2009, 2010, 2011 👋 Introduction Market Position Market Segment: High-performance off-road motorcycles (motocross/supercross competition). Competitive Analysis Competitors: Yamaha YZ450F, Honda CRF450R, Kawasaki KX450F, Suzuki RM-Z450 during the 2007-2011 model years. Key Features Key Features Vehicle: Lightweight chassis, powerful single-cylinder engines, advanced suspension systems, focus on competitive motocross performance. 📋 Manual Details Coverage Areas Systems Covered: Engine (including top-end, bottom-end, fuel system, ignition, lubrication, cooling), Transmission, Clutch, Chassis, Suspension (front and rear), Brakes (front and rear), Electrical System (wiring diagrams, components, troubleshooting), Frame, Swingarm, Wheels, Tires, Bodywork, Exhaust System, Airbox, Fuel Tank, Handlebars, Controls, Starting System, Drive System (chain, sprockets). Page Count Page Count: Estimated 300-500 pages (typical for complete workshop manuals of this era and scope) Manual Type Manual Type: Complete Workshop Service Repair Manual Language Language: English Format Format: Digital Downloadable (PDF) 📖 Manual Coverage Systems Covered Engine Systems: Detailed disassembly, inspection, repair, and reassembly of all engine components including cylinder head, valves, camshafts, piston, connecting rod, crankshaft, oil pump, water pump, carburetor (for applicable models), fuel injection system (for applicable models), ignition system, and starting mechanism. Procedures Included General Repair: Step-by-step instructions for routine maintenance, component replacement, troubleshooting of common and uncommon issues, and complete engine rebuilds. Technical Depth Technical Depth: Comprehensive, covering basic maintenance to in-depth mechanical and electrical diagnostics, rebuild procedures, and specifications for internal engine components. Includes torque specifications, clearances, tolerances, and diagnostic procedures. 📊 Manual Specifications File Format File Format: Portable Document Format (PDF), compatible with Adobe Reader Print Quality Print Quality: High-quality, enabling clear reproduction of text and images when printed. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, single-cylinder (Liquid-cooled, DOHC, 4 valves) Displacement 450: 449.3 cc Displacement 505: 504.6 cc Performance Horsepower Range: Approximately 50-55+ HP (estimated, varies by specific year and tuning) Torque Range: Approximately 30-35+ lb-ft (estimated, varies by specific year and tuning) Fuel System Fuel Delivery: Carbureted (Keihin FCR MX series) for earlier models, Fuel Injection (EFI) introduced in later years of this range (specific models need verification, but manual should cover both if applicable). Ignition System Ignition Type: Digital CDI with variable ignition timing Cooling System Cooling Method: Liquid-cooled with dual radiators 🔧 Transmission Standard Transmission Type: Constant mesh, 5-speed Features Clutch Type: Wet multi-plate clutch (Hydraulically actuated) Gear Ratios: Specific gear ratios will be detailed within the manual for each model variant. 📐 Dimensions Exterior Wheelbase Approx: Approximately 1480-1495 mm (58.3-58.9 inches) Seat Height Approx: Approximately 990 mm (39.0 inches) Weights Dry Weight Approx: Approximately 101-103 kg (222.7-227.1 lbs) 🛡️ Safety Features Ratings Safety Features Focus: Designed for off-road competition, safety focus is on rider control, braking performance, and chassis stability. No road-legal safety features like ABS or airbags. Active Features Braking System: Hydraulic disc brakes, front and rear (Brembo calipers typically) Suspension Adjustment: Fully adjustable front forks (e.g., WP USD) and rear shock absorber, allowing for rider-specific tuning for optimal control and impact absorption. 💡 Technology Features Infotainment Infotainment System: N/A (Competition Off-Road Motorcycle - no infotainment system). Driver Assistance Electronic Aids: Primarily mechanical. May include basic handlebar-mounted controls for ignition mapping or engine start/stop. No electronic rider aids like traction control or ABS. Connectivity Connectivity Features: N/A (Competition Off-Road Motorcycle - no connectivity features). 🔧 Maintenance Service Intervals Oil Change Interval: Frequent oil and filter changes are critical for these high-performance engines. Typically recommended every 5-10 hours of riding time, or at least annually. Air Filter Cleaning: Should be cleaned and re-oiled before every riding session or after dusty conditions. Manual will detail specific procedures and recommended cleaning agents. Valve Clearance Check: Recommended check and adjustment intervals typically every 15-25 hours of riding time. Critical for maintaining engine performance and longevity. Fluid Specifications Engine Oil Type: Synthetic motorcycle-specific 10W-40 or 10W-50 is commonly recommended. Manual will specify exact API/JASO ratings and KTM specifications. Coolant Type: Ethylene glycol-based antifreeze/coolant mixture, typically 50/50 with distilled water. Manual will specify required type...