🏷️ Basic Information Identification Make: KTM Model: 450 SX-F / 505 XC-F Year: 2009 Codes Platform Code: XC/SX Series (Generation 2) 👋 Introduction Market Position Motorcycle Segment: High-performance Motocross and Cross-Country Competition Competitive Analysis Key Competitors: Yamaha YZ450F, Honda CRF450R, Kawasaki KX450F, Suzuki RM-Z450 Key Features Vehicle Design Philosophy: Lightweight, powerful, and agile for competitive off-road racing, emphasizing performance and rider control. Manual Value Proposition: Provides the definitive guide for maintaining and repairing these specialized performance machines, enabling cost savings and optimal performance. 📋 Manual Details Coverage Areas Manual Type: Workshop Repair Service Manual Language: English Format: PDF Download Page Count Estimated Page Count: Hundreds (Exact count not specified, but typical for factory service manuals of this era) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, cylinder head, piston, crankshaft, connecting rod, valve train, timing, lubrication system, cooling system. Fuel System: Fuel injection system, fuel pump, injectors, throttle body, fuel tank, lines, diagnostics. Ignition System: Ignition coil, spark plug, ECU, wiring diagrams, timing adjustments. Transmission: Clutch operation, gear shifting mechanisms, internal transmission components, lubrication. Suspension: Front fork (WP), rear shock absorber (WP), linkage system, adjustments, rebuild procedures. Brakes: Hydraulic brake system (front and rear), master cylinders, calipers, brake lines, pads, rotor specifications, bleeding procedures. Electrical System: Wiring diagrams, battery, starter, lighting, sensors, ECU, troubleshooting. Chassis And Frame: Frame inspection, subframe, steering head bearings, swingarm, wheel bearings. Bodywork And Plastics: Fairings, seat, fuel tank cover, removal, installation, and general care. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug replacement, air filter cleaning. Troubleshooting: Diagnostic charts, common problems, symptom-based troubleshooting for engine, electrical, and chassis issues. Repair: Step-by-step repair instructions for all major components, including complete engine disassembly and reassembly. Installation: Installation procedures for replacement parts and accessories. Diagnostics: On-board diagnostics (OBD) information where applicable, sensor data interpretation, fault code analysis. Technical Depth Depth Level: Comprehensive Factory Level Target Audience: DIY enthusiasts and experienced professional mechanics 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Compatibility: Windows and Mac operating systems Print Quality Printability: All pages are printable 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 450 Sx-F Displacement: 449.3 cc 505 Xc-F Displacement: 505.6 cc Bore X Stroke 450: 97 mm x 60.8 mm Bore X Stroke 505: 97 mm x 67.7 mm Compression Ratio: 11.0:1 (typical for this generation) Valve Train: DOHC, 4 Valves Cooling System: Liquid-cooled Lubrication System: Semi-dry sump, dual oil pumps Performance 450 Sx-F Horsepower: ~53 HP (at crankshaft, estimated) 505 Xc-F Horsepower: ~56 HP (at crankshaft, estimated) 450 Sx-F Torque: ~47 Nm (at crankshaft, estimated) 505 Xc-F Torque: ~50 Nm (at crankshaft, estimated) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI), Keihin 41mm throttle body Fuel Type: Unleaded Premium (95-98 RON / 91-93 AKI) 🔧 Transmission Standard Transmission Type: 5-speed Manual Optional Optional Transmission: N/A Features Clutch Type: Wet, multi-disc clutch (Hydraulically operated) Gear Ratios: Specific ratios available in manual, typical for motocross application (e.g., 1st: ~2.57, 2nd: ~1.84, 3rd: ~1.40, 4th: ~1.13, 5th: ~0.96) Final Drive: Chain 📐 Dimensions Exterior Wheelbase: Approx. 1480 mm (58.3 inches) Seat Height: Approx. 960 mm (37.8 inches) Weights Dry Weight: Approx. 107 kg (235.9 lbs) (varies slightly between models) Fuel Tank Capacity: 7.5 Liters (1.98 US gallons) 🛡️ Safety Features Ratings Safety Certification: N/A (Competition Off-Road Motorcycle - not subject to road safety regulations) Active Features Braking System: Hydraulic disc brakes, front and rear. Passive Features Frame Design: Chromoly steel trellis frame for high strength-to-weight ratio and rigidity. 💡 Technology Features Infotainment Infotainment System: N/A (Pure performance off-road motorcycle, no infotainment features). Driver Assistance Electronic Aids: No electronic rider aids such as ABS or traction control are present on this competition model. Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Every 10-15 hours of riding (or as per manual recommendation, typically after major race events). Air Filter Cleaning: Every 5-8 hours of riding, or more frequently in dusty conditions. Spark Plug Replacement: Every 20-30 hours of riding, depending on plug type and usage. Valve Clearance Check: Every 20-30 hours of riding for precision motocross engines. Fluid Specifications Engine Oil Type: SAE 10W-50, API SJ or higher, JASO MA/MA2 (e.g., Motorex Power Synt 4T 10W/50). Engine Oil Capacity: Approx. 1.1 Liters (1.16 US quarts) with filter change. Cooling System Coolant: Mixture of distilled water and antifreeze (ethylene glycol based), typically 50/50 ratio. Coolant spec: JASO M325 / KG-001. Brake Fluid Type: DOT 4 hydraulic brake fluid. Known Issues Common Wear Items: Clutch plates, piston rings, valve guides, wheel bearings, steering head bearings, swingarm bearings, chain and sprockets. Maintenance Criticality: Due to the high-stress nature of competition, adherence to strict maintenance schedules is paramount for longevity and performance. 📚 Vehicle History Brand Heritage Ktm...