🏷️ Basic Information Identification Make: KTM Model: 450 SX Type: All-Terrain Vehicle (ATV) Year: 2009 Sub Model: SX (Sport Cross Country) 👋 Introduction Market Position Product Category: Performance Off-Road ATV Parts Target User: KTM 450 SX ATV owners, mechanics, and parts suppliers. Competitive Analysis Value Proposition: Provides essential OEM part identification and numbers for accurate maintenance and repair, crucial for preserving the performance of a high-performance off-road vehicle. Key Features Illustrated Diagrams: Clear, exploded view diagrams that visually break down complex assemblies. Part Number Listing: Essential for sourcing correct, genuine replacement parts. Assembly Guidance: Facilitates correct reassembly of components after maintenance or repair. 📋 Manual Details Coverage Areas Primary Coverage: Exploded Parts Diagrams, Part Numbers Secondary Coverage: Disassembly, Repair, Assembly Guidance Page Count Estimated Page Count: Varies based on specific edition, typically 100-300 pages for a comprehensive parts catalog of this nature. Manual Type Type: OEM Replacement Parts Manual / Parts Catalog Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine (450cc), Transmission, Drivetrain (Chain/Sprockets), Clutch Assembly Chassis And Suspension: Frame, Front Suspension (A-Arms, Shocks, Steering), Rear Suspension (Swingarm, Shock, Linkage), Wheels, Tires Brakes: Front and Rear Brake Calipers, Rotors, Master Cylinders, Lines, Levers/Pedals Electrical System: Ignition System, CDI Unit, Wiring Harness, Battery, Starter Motor, Lighting (if applicable) Fuel System: Carburetor Assembly, Fuel Tank, Fuel Lines, Fuel Filter Cooling System: Radiator, Cooling Fan, Hoses, Coolant Exhaust System: Exhaust Pipe, Muffler, Heat Shields Bodywork And Controls: Plastic Body Panels (fenders, shrouds), Seat, Handlebars, Footpegs, Levers, Cables Procedures Included Component Identification: Detailed identification of every component via exploded diagrams. Part Number Lookup: Comprehensive listing of all OEM part numbers for ordering replacements. Assembly Disassembly Guidance: Visual aids and part orderings assist in proper disassembly and reassembly sequences. Technical Depth Level Of Detail: Highly detailed for parts identification and placement, enabling accurate replacement and repair. Diagnostic Capability: Indirectly aids diagnostics by identifying correct components for replacement. Does not include troubleshooting steps. Repair Scope: Focuses on parts replacement rather than in-depth repair procedures or specifications. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Searchability: Typically searchable if the PDF is text-based, allowing for quick part number or component name searches. Print Quality: Depends on the source, but generally designed for clear printing of diagrams and text. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, 4-stroke, Liquid-cooled, DOHC Displacement: Approximately 450cc (specific bore/stroke for 2009 model may vary slightly) Bore X Stroke: Likely around 95 mm x 63.4 mm (refer to specific service manual for exact figures) Compression Ratio: Typically in the range of 11.1:1 to 12.5:1 for performance engines of this era. Performance Horsepower Estimate: Estimated 40-50 HP (at crankshaft), specific rating varies. Torque Estimate: Estimated 35-40 lb-ft (at crankshaft), specific rating varies. Fuel System Fuel Delivery: Carbureted (likely Keihin FCR series, e.g., FCR-MX) Carburetor Size: Likely 40mm or 41mm Fuel Type: Unleaded Gasoline (Octane rating specified in owner's manual, typically 91+) Ignition System Ignition Type: Digital CDI with adjustable ignition advance Cooling System Cooling Method: Liquid Cooling Lubrication Oil Type: Typically SAE 10W-50 or 10W-40 motorcycle-specific synthetic oil with JASO MA/MA2 certification. Oil Capacity: Approx. 1.2 - 1.5 Liters (including filter change, refer to manual for exact capacity) 🔧 Transmission Standard Type: 5-speed manual gearbox with wet multi-disc clutch Clutch Type: Hydraulically operated, wet multi-plate Features Gear Ratios: Specific ratios will be detailed in a full service manual, but designed for aggressive off-road performance. Final Drive: Chain drive (DID or similar quality), typically 520 pitch. Transmission Fluid Fluid Type: Engine oil (shared with engine lubrication, see engine oil specs) 📐 Dimensions Exterior Wheelbase: Approx. 1280 mm (50.4 inches) Seat Height: Approx. 830 mm (32.7 inches) Ground Clearance: Approx. 260 mm (10.2 inches) Weights Dry Weight: Approx. 170 kg (375 lbs) Curb Weight: Not typically published for ATVs, but would be dry weight plus fluids. Fuel Capacity Tank Capacity: Approx. 8 Liters (2.1 Gallons) 🛡️ Safety Features Ratings Atv Safety: As an off-road vehicle, safety is highly dependent on rider skill, protective gear, and adherence to safe operating practices. No crash test ratings apply. Active Features Brakes: Hydraulic disc brakes front and rear for strong stopping power. Throttle Limiter: Not typically present on performance SX models, but may have been an option or regional variation. Passive Features Frame Construction: Robust steel or aluminum frame designed for off-road abuse. Handlebar Protection: Often includes knuckle guards or handguards. Footpegs: Aggressive grip footpegs for secure footing. 💡 Technology Features Infotainment Features: N/A. Performance ATVs of this era focus on pure riding capability, not infotainment systems. Driver Assistance Features: N/A. Focus is on rider control and mechanicals. Connectivity Features: N/A. No electronic connectivity features. 🔧 Maintenance Service Intervals Oil Change Interval: Recommended every 15-25 hours of operation...