This workshop service repair manual covers the 450 SX ATV and 505 SX ATV models manufactured in 2010. These high-performance sport ATVs are engineered for competitive riding and aggressive off-road use, embodying a 'Ready to Race' philosophy. Known for their robust construction and powerful engines, these models are designed to deliver exceptional agility and control across demanding terrains, making them a strong contender against rivals like the Yamaha YFZ450, Suzuki LT-R450, and Honda TRX450R. This comprehensive manual provides detailed information for maintaining and repairing your ATV. It covers all essential systems, including the engine, transmission, chassis, suspension, brakes, and electrical system, along with bodywork and plastics. Within its 500+ pages, you will find step-by-step instructions for routine maintenance, major repairs, troubleshooting, and component disassembly/assembly. This resource is invaluable for owners and technicians seeking to preserve the performance and longevity of their 2010 450 SX ATV or 505 SX ATV. 🏷️ Basic Information Identification Make: KTM Model: 450 SX ATV / 505 SX ATV Year: 2010 Vehicle Type: All-Terrain Vehicle (ATV) 👋 Introduction Market Position Segment: High-performance sport ATVs Target Audience: Competitive riders, off-road enthusiasts, and DIY mechanics Competitive Analysis Competitors: Yamaha YFZ450, Suzuki LT-R450, Honda TRX450R Key Features Vehicle Performance Focus: Designed for racing and aggressive off-road riding Key Features Manual Value Proposition: Inexpensive way to maintain and repair the vehicle, saving on labor costs 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Chassis: Yes Suspension: Yes Brakes: Yes Electrical System: Yes Bodywork And Plastics: Yes Cooling System: Yes Fuel System: Yes Exhaust System: Yes Lubrication System: Yes Troubleshooting: Yes Wiring Diagrams: Yes Page Count Estimated Pages: 500+ Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Complete disassembly, inspection, assembly of engine components (pistons, rings, cylinders, crankshaft, camshaft, valves, etc.) Engine Management: Ignition system, fuel injection system, sensors, ECU operations, diagnostic codes Transmission Manual: Clutch operation, gear shifting mechanisms, internal transmission component inspection and repair Drivetrain: Chain drive, sprocket inspection and replacement, axle and bearing service Suspension Front: Fork service (seals, oil, springs), steering knuckle, ball joint inspection and replacement Suspension Rear: Shock absorber service, swingarm inspection, linkage maintenance, bearing service Braking System Front: Caliper service, rotor inspection and replacement, brake line maintenance, master cylinder service Braking System Rear: Caliper service, rotor inspection and replacement, brake pedal linkage, master cylinder service Electrical Components: Lighting system, starter motor, battery service, stator, regulator/rectifier, ignition coil Cooling System: Radiator maintenance, fan operation, coolant hose inspection, water pump service Fuel Delivery: Fuel tank inspection, fuel pump operation, fuel filter replacement, fuel line maintenance Exhaust System: Muffler inspection, header pipe maintenance, exhaust gasket replacement Procedures Included Preventative Maintenance: Regular service checks, fluid changes, filter replacements, lubrication points Routine Maintenance: Oil changes, spark plug replacement, air filter cleaning/replacement, chain adjustment Major Repairs: Engine rebuilds, transmission overhaul, suspension component replacement Troubleshooting Diagnostics: Step-by-step guides for identifying and resolving common and complex issues Component Disassembly Assembly: Detailed instructions for removing, inspecting, and reinstalling all major and minor components Wiring Schematics: Comprehensive electrical diagrams for fault finding and component identification Torque Specifications: Precise torque values for all critical fasteners to ensure proper assembly Technical Depth Depth: Comprehensive factory-level detail suitable for both DIY enthusiasts and professional mechanics Illustrations: Hundreds of detailed illustrations and diagrams for visual guidance Step By Step Instructions: Clear, sequential instructions for every repair and maintenance task Troubleshooting Charts: Diagnostic flowcharts to quickly identify the root cause of problems 📊 Manual Specifications File Format Format: PDF Compatibility: Windows and Mac OS Print Quality Printability: All pages printable Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) Completeness Completeness: 100% complete and intact ⚙️ Engine Specifications Primary Engine 450Sx Engine Type: Single-cylinder, 4-stroke, SOHC Displacement: 449.4 cc Bore X Stroke: 95 mm x 63.4 mm Compression Ratio: 12.5:1 Primary Engine 505Sx Engine Type: Single-cylinder, 4-stroke, SOHC Displacement: 505 cc Bore X Stroke: 97 mm x 68 mm Compression Ratio: 12.5:1 Performance Horsepower 450Sx: Approx. 45-50 HP (at crank, estimated) Torque 450Sx: N/A (Specific figures not readily available, but high torque output for class) Horsepower 505Sx: Approx. 50-55 HP (at crank, estimated) Torque 505Sx: N/A (Specific figures not readily available, but higher torque output than 450) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Carburetor Type: N/A (EFI equipped) Fuel Type: Unleaded gasoline Lubrication System Oil Type: Synthetic 4-stroke motorcycle oil (e.g., Motorex, Castrol, Yamalube) meeting API SG or higher, JASO MA specification Oil Capacity Engine Only: Approx. 1.6 Liters (Refer to manual for precise capacity with filter change) Cooling System Type: Liquid-cooled 🔧 Transmission Standard Type: Manual transmission Gears: 5-speed forward Optional Transmission Type: N/A (Standard manual transmission) Features Clutch Type: Wet multi-plate clutch Final Drive: O-ring sealed chain 📐 Dimensions Exterior Length: Approx. 70.5 inches (1790 mm) Width: Approx....