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 designed for Motocross and Supercross racing, embodying a renowned off-road heritage. They feature powerful LC4 engines, advanced WP suspension, and robust chassis designs, making them a competitive choice for racers and enthusiasts. The models are characterized by their strong performance, durability, and focus on competition-grade engineering, reflecting a commitment to excellence in the off-road segment. This comprehensive service repair workshop manual provides detailed information for the maintenance and repair of your motorcycle. It covers all essential systems, including the engine, transmission, clutch, fuel system, ignition system, chassis, suspension, brakes, and electrical components. The manual includes scheduled maintenance procedures, detailed repair instructions for major overhauls, troubleshooting guides, and information on special tools. With hundreds of pages of detailed photos, diagrams, and explanations, this resource is invaluable for owners, mechanics, and technicians seeking to ensure optimal performance and longevity of their 450 SX-F, 505 SX-F, or 450 SXS-F. 🏷️ Basic Information Identification Make: KTM Model: 450 SX-F / 505 SX-F / 450 SXS-F Model Designation Sx F: Sport Cross-Country Factory Model Designation Sxs F: Sport Cross-Country Supercross Factory Codes Year Coverage: 2007, 2008, 2009, 2010, 2011 Engine Codes Covered: LC4 450 (SX-F, SXS-F), LC4 505 (SX-F) 👋 Introduction Market Position Segment: High-performance Motocross/Supercross Off-Road Motorcycles Target Audience: Motocross Racers, Enthusiasts, Professional Mechanics, DIY Technicians Competitive Analysis Competitors: Yamaha YZ450F, Honda CRF450R, Suzuki RM-Z450, Kawasaki KX450F Key Features Manual Value: Comprehensive, detailed, professional-grade information for maintenance and repair Visual Aid Quality: Hundreds of pages with detailed photos and diagrams, including exploded views Accessibility: Instant download, cross-platform compatibility, lifetime access 📋 Manual Details Coverage Areas Scope: Complete Factory Service Repair Workshop Manual Primary Market: North America, Europe Page Count Estimated Pages: Hundreds Manual Type Type: Service Repair Workshop Manual Language Language: English Format Digital Format: PDF Availability: Instant Download 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Clutch, Fuel System, Ignition System Chassis: Frame, Suspension (Front & Rear), Steering, Brakes, Wheels, Tires Electrical: Wiring Diagrams, Lighting, Battery, Ignition Control, Sensors Bodywork: Fairings, Seat, Fuel Tank, Handlebars Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication Repair: Engine Rebuilds, Transmission Overhaul, Suspension Servicing, Brake Bleeding, Electrical Component Replacement Troubleshooting: Diagnostic Flowcharts, Fault Finding Procedures, Component Testing Special Tools: Identification and Usage of KTM Specific Tools Technical Depth Depth: Comprehensive, from basic checks to complete engine and chassis overhauls Diagnostic Capability: Advanced diagnostic procedures and component testing 📊 Manual Specifications File Format Compatibility: Windows & MAC Computers Searchability: Likely searchable PDF text content Print Quality Print Ability: Print single page or entire manual Print Resolution: High-resolution for clear diagrams and photos Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) Licensing Usage Rights: Unlimited use on multiple devices, lifetime access ⚙️ Engine Specifications Primary Engine Engine Type 450: Single-cylinder, 4-stroke, LC4 engine Engine Type 505: Single-cylinder, 4-stroke, LC4 engine Bore X Stroke 450: Approx. 97 mm x 60.8 mm (Specifics vary slightly by year, consult manual) Bore X Stroke 505: Approx. 102 mm x 60.8 mm (Specifics vary slightly by year, consult manual) Displacement 450: Approx. 449.3 cc (Specifics vary slightly by year, consult manual) Displacement 505: Approx. 503.6 cc (Specifics vary slightly by year, consult manual) Cooling System: Liquid-cooled Performance Horsepower 450: Approx. 50-55 HP (Varies by year and tuning, consult manual for exact figures) Horsepower 505: Approx. 55-60 HP (Varies by year and tuning, consult manual for exact figures) Torque: Significant torque figures appropriate for its class, consult manual for specific Nm values. Fuel System Fuel Delivery: Carbureted (Keihin FCR MX) for most models in this range, potential EFI on later models Carburetor Model: Keihin FCR 41 MX (typical) Recommended Fuel: Unleaded gasoline with Octane rating of 95 RON (or equivalent 91 AKI) Oil Capacity With Filter: Approx. 1.1 Liters (0.75 L for engine, 0.35 L for gearbox/clutch - consult manual for exact quantity and procedure) Lubrication Oil Type: High-performance 4-stroke motorcycle oil, JASO MA/MA2 certified, SAE 10W-40 or 15W-50 (consult manual for specific viscosity and OEM recommendations) 🔧 Transmission Standard Transmission Type: Constant mesh, 5-speed Optional Optional Gear Ratios: Not applicable, standard gear ratios for motocross applications Features Clutch Type: Hydraulically operated, multi-disc wet clutch (APT-C System on some models) Gearbox Oil Capacity: Separate oil for gearbox/clutch, typically 0.35 Liters (integrated with engine oil in some wet-sump designs, verify with manual) Gearbox Oil Type Oil Specification: Same as engine oil (high-performance 4-stroke motorcycle oil, JASO MA/MA2 certified, SAE 10W-40 or 15W-50 - consult manual) 📐 Dimensions Exterior Seat Height: Approx. 970-985 mm (Varies by year and suspension setup, consult manual) Ground Clearance: Approx. 350-370 mm (Varies by year and suspension setup, consult manual) Weights Dry Weight 450: Approx. 108-110 kg (Varies by year and specifications, consult manual)...