Basic Information Identification Make: KTM Model: 450 SX-F / SXS-F Year: 2007 Codes Engine Code: LC4-based 4-stroke single-cylinder (specific codes vary by sub-model) Chassis Code: SX-F / SXS-F series Introduction Market Position Segment: High-performance Motocross/Off-road Competition Motorcycles Competitive Analysis Competitors: Yamaha YZ450F, Honda CRF450R, Suzuki RM-Z450, Kawasaki KX450F Key Features Design Philosophy: Lightweight, powerful, agile, track-focused performance Manual Advantage: Official factory content provides authoritative and accurate repair information, crucial for performance tuning and longevity. Manual Details Coverage Areas Covered Models: KTM 450 SX-F, KTM 450 SXS-F, KTM 505 SX-F, KTM 505 SXS-F Page Count Estimated Pages: Hundreds (as stated in product description) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Download Manual Coverage Systems Covered Engine: Full disassembly, assembly, tuning, diagnostics, lubrication, cooling system, fuel system (carburetor specifications, jetting guidance) Transmission: Clutch operation, gearbox inspection, lubrication, common issues Chassis: Frame inspection, suspension (forks, rear shock), steering, swingarm, wheel bearings Electrical: Wiring diagrams, ignition system, lighting, troubleshooting, battery maintenance Braking: Brake system maintenance, fluid replacement, pad inspection, caliper service Bodywork: Plastic panel removal/installation, seat, fuel tank Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug replacement Repair: Engine rebuilds, transmission overhauls, suspension repairs, electrical diagnostics and repair, brake system repairs Troubleshooting: Engine starting issues, performance problems, electrical faults, handling difficulties Technical Depth Depth: Comprehensive; covers routine maintenance to complete engine and chassis overhauls. Includes detailed diagnostic procedures and specifications. Manual Specifications File Format File Type: PDF Print Quality Printability: Fully printable, unrestricted Binding Type Binding: Digital Download (printable) Paper Type Paper Format: N/A (Digital) Software Requirements Reader: Adobe PDF Reader Engine Specifications Primary Engine Type: 4-stroke, single-cylinder, DOHC (Double Overhead Camshaft), 4 valves Displacement 450: Approx. 449cc Displacement 505: Approx. 505cc Performance Horsepower Estimate: Likely in the 50-55 HP range (stock, unconfirmed without specific manual data) Torque Estimate: Significant torque delivery for class-leading acceleration (specifics not in product description) Fuel System Carburetor: Keihin FCR carburetor (specific size varies by model, typically 41mm) Fuel Type: Unleaded gasoline (minimum 95 RON) Cooling System Type: Liquid-cooled Lubrication System: Integrated engine and transmission oil lubrication system (common for KTMs of this era) Transmission Standard Type: Constant-mesh, 5-speed Optional Gear Ratios: Specific ratios provided in manual (e.g., 1st: 2.46, 2nd: 1.75, 3rd: 1.33, 4th: 1.13, 5th: 0.91) Features Clutch: Hydraulically operated, multi-disc wet clutch Final Drive: Chain drive Dimensions Exterior Length: Varies by model, typically around 2140 mm Width: Varies by model, typically around 800 mm Height: Varies by model, typically around 1260 mm Weights Dry Weight: Approx. 100-105 kg (highly competitive for the era) Fuel Tank Capacity: Approx. 7.5 liters (1.98 US gal) Safety Features Ratings Crash Test Ratings: Not applicable for off-road competition motorcycles Active Features Brakes: Hydraulic disc brakes front and rear (Brembo components often used) Suspension Performance: High-performance adjustable suspension for optimal control and safety Passive Features Frame Construction: Chromoly steel trellis frame for strength and rigidity Technology Features Infotainment Features: Minimal to none; primarily focused on performance and function. May include basic hour meter. Driver Assistance Features: None. Focus is on rider skill and machine capability. Connectivity Features: None. Maintenance Service Intervals Oil Change Recommendation: Every 15-20 hours of operation or annually (refer to manual for specific guidelines) Air Filter Cleaning: After every few rides, or more frequently in dusty conditions Valve Clearance Check: Typically every 20-30 hours of operation (critical for performance) Fluid Specifications Engine Oil Type: High-quality 4-stroke motorcycle oil, SAE 10W-50 or 10W-40 recommended (e.g., Motorex Power Synt M). Engine Oil Capacity: Approx. 1.1 liters (refer to manual for exact capacity) Coolant Type: Ethylene glycol-based coolant with corrosion inhibitors (e.g., Motorex Coolant M3.0) Brake Fluid Type: DOT 4 hydraulic brake fluid Clutch Fluid Type: Mineral oil (e.g., Magura Blood) for hydraulic clutch systems Known Issues Engine Vibration: Some models may experience increased vibration due to their high-performance nature; manual will address balancing and mounting. Clutch Wear: Heavy use can lead to clutch plate wear; manual covers inspection and replacement. Suspension Maintenance: Regular fork seal inspection and rear shock service are crucial for optimal performance and longevity. Vehicle History Brand Heritage Specialization: KTM is renowned for its off-road racing heritage, particularly in motocross, enduro, and rally racing. Model Evolution Sx Series Development: The SX-F series represents KTM's push towards lightweight, high-performance 4-stroke motocross machines, evolving from earlier designs and competition. Sxs Variant: The SXS-F variant typically signifies a factory-supported or 'special' version, often with enhanced components or tuning for competition. Production Manufacturing Location: Austria (KTM AG) Awards & Recognition Recognitions Motocross Wins: KTM SX-F models have a strong history of winning championships in national and international motocross events. Ratings Performance Reviews: Generally lauded for strong engines, capable chassis, and premium suspension components.