The 2010 TXC450 is a competition motocross/off-road motorcycle designed for aggressive riding and closed-course racing. Leveraging extensive heritage in off-road engineering, this model offers a potent combination of power, handling, and durability. Its four-stroke, single-cylinder engine with electronic fuel injection delivers estimated horsepower and torque figures suitable for demanding off-road conditions, while the agile chassis and robust suspension are optimized for stability and control. Manufactured in Italy, the TXC450 embodies the commitment to performance-oriented off-road vehicles. This comprehensive Service Repair Manual provides detailed guidance for the maintenance, repair, and troubleshooting of your 2010 TXC450. It covers all major systems, including the engine, transmission, chassis, brakes, and electrical components, with step-by-step instructions for disassembly, repair, and reassembly. Essential maintenance procedures, diagnostic charts for common issues, and technical specifications are also included to ensure optimal performance and longevity. This manual is an indispensable resource for owners and technicians alike, facilitating everything from routine service to complex repairs. 🏷️ Basic Information Identification Make: Husqvarna Model: TXC450 Year: 2010 Type: Motorcycle Codes Vin Prefix: VHM 👋 Introduction Market Position Category: Competition Motocross/Off-Road Motorcycle Competitive Analysis Key Competitors: KTM EXC-F, Yamaha YZ-F, Honda CRF, Kawasaki KX-F, Suzuki RM-Z. Key Features Off Road Focus: Designed for closed-course competition, offering a balance of power, handling, and durability for off-road racing. Husqvarna Heritage: Leverages Husqvarna's long-standing expertise in off-road motorcycle design and engineering. 📋 Manual Details Coverage Areas Languages Covered: English Regions Covered: Global Page Count Estimated Pages: 300+ Manual Type Type: Service Repair Manual Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, internal components, lubrication system, cooling system, fuel system, ignition system, exhaust system. Transmission: Gearbox inspection, disassembly, assembly, clutch operation, shift mechanism. Chassis: Frame inspection, suspension (front fork, rear shock), steering system, wheels, tires, spokes. Brakes: Hydraulic brake system (front and rear), caliper overhaul, master cylinder, brake lines, fluid specifications. Electrical: Wiring diagrams, lighting system, charging system (stator, regulator/rectifier), battery, starter system, ignition system components. Bodywork: Fairings, plastics, seat, fuel tank, fenders, decals. Procedures Included Maintenance: Regular scheduled maintenance, oil changes, filter replacements, chain adjustment, valve clearance checks. Troubleshooting: Diagnostic charts for common issues, electrical faults, engine performance problems, starting difficulties. Repair: Step-by-step instructions for component disassembly, repair, and reassembly for all major systems. Disassembly Reassembly: Detailed instructions for removing and installing major components, including engine, transmission, and suspension units. Technical Depth Depth: Comprehensive from basic rider maintenance to full engine and gearbox rebuilds, including diagnostic procedures. 📊 Manual Specifications File Format Quality: High-resolution, searchable text, printable pages. Print Quality Readability: Clear text and legible diagrams, optimized for digital viewing and printing. Binding Type Digital: N/A (PDF format) Paper Type Digital: N/A (PDF format) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, single-cylinder, DOHC Displacement: 449.6 cc (27.4 cu in) Bore X Stroke: 95 mm x 63.4 mm Compression Ratio: 12.0:1 Performance Horsepower: Estimated 50-55 HP (specific figures not officially published for competition models, actual dyno results vary) Torque: Estimated 40-45 Nm (specific figures not officially published) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) - Keihin or Mikuni based system Fuel Type: Unleaded gasoline, minimum 95 octane (RON) Cooling System Type: Liquid-cooled Lubrication System Type: Semi-dry sump with integrated gearbox oil. Engine Oil Capacity: Approx. 1.1 Liters (1.16 US qt) for engine and gearbox combined. 🔧 Transmission Standard Type: 6-speed constant mesh Optional Availability: N/A (standard 6-speed) Features Clutch Type: Wet multi-plate, hydraulic actuation Gearbox Oil Capacity: Included in engine oil capacity Final Drive: O-ring sealed chain 📐 Dimensions Exterior Length: Approx. 2170 mm (85.4 in) Width: Approx. 800 mm (31.5 in) (excluding handlebars) Height: Approx. 1280 mm (50.4 in) (seat height approx. 955 mm / 37.6 in) Weights Dry Weight: Approx. 111 kg (244.7 lbs) Wet Weight: Approx. 120 kg (264.5 lbs) (with all fluids) Cargo Capacity: N/A (competition off-road motorcycle) 🛡️ Safety Features Ratings Crash Test Ratings: N/A (competition off-road motorcycle, not subject to road safety regulations) Active Features Braking System: Hydraulic disc brakes front and rear. Suspension Geometry: Designed for stability and control in aggressive off-road conditions. Passive Features Frame Construction: Robust steel or aluminum alloy frame for durability. Handguards: Standard fitment for lever protection and rider comfort. 💡 Technology Features Infotainment Features: N/A (minimalist, performance-focused off-road motorcycle) Driver Assistance Features: N/A (competition off-road motorcycle) Connectivity Features: N/A (no electronic connectivity features) 🔧 Maintenance Service Intervals Oil Change Interval: Recommended every 10-15 hours of riding or annually, whichever comes first. Air Filter Cleaning: Recommended after every few rides or in dusty conditions. Valve Clearance Check: Recommended every 20-30 hours of riding. Chain Lubrication Adjustment: Check and lubricate before every ride, adjust slack as needed. Fluid Specifications Engine Oil Grade: SAE 10W-50, API SG, JASO MA (fully synthetic recommended) Coolant Type: Ethylene glycol-based coolant with corrosion inhibitors, mix 50/50 with distilled water. Brake Fluid Type: DOT 4 hydraulic...