The TXC449, produced in 2011, is a high-performance, single-cylinder, four-stroke off-road motorcycle engineered for competition motocross and cross-country racing. Building on a rich Swedish heritage, this model incorporates advanced WP Suspension components and a robust chassis designed for durability in demanding terrain. Its liquid-cooled 449cc engine, featuring DOHC and 4 valves, delivers an estimated 50-55 horsepower, with a 6-speed sequential manual transmission and wet, multi-plate clutch providing precise control. The TXC449 represents a significant development in off-road racing lineage, competing with established brands in its segment. This workshop service manual provides comprehensive coverage for the TXC449 (2011), encompassing all aspects of service and repair. It details engine mechanicals, fuel and cooling systems, transmission, drivetrain, brakes, suspension, and the electrical system, along with bodywork and frame maintenance. The manual includes step-by-step procedures for disassembly, assembly, adjustments, and diagnostics, alongside essential technical specifications, torque values, and special tool requirements. Its purpose is to empower owners and technicians with the knowledge necessary for routine maintenance, troubleshooting, and complete overhauls, ensuring the optimal performance and longevity of the motorcycle. 🏷️ Basic Information Identification Make: Husqvarna Model: TXC449 Year: 2011 Codes Product Code: HUSQ-TXC449-2011-SM 👋 Introduction Market Position Segment: Competition Motocross / Off-road Racing Competitive Analysis Competitors: KTM EXC, Yamaha YZ-F, Honda CRF-X, Kawasaki KX-F, Suzuki RM-Z Key Features Bike Type: High-performance off-road motorcycle designed for competition Engine Layout: Single-cylinder, four-stroke Suspension Design: Advanced WP Suspension components Manual Purpose: Empowering owners and technicians with comprehensive repair knowledge for optimal performance and longevity. 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Troubleshooting, Diagnostics, Overhaul Page Count Estimated Page Count: 300+ Manual Type Type: Workshop Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, cylinder head, piston, crankshaft, camshaft, valve train, timing Fuel System: Fuel injection system, fuel pump, injectors, fuel filter, throttle body Cooling System: Radiator, water pump, coolant hoses, thermostat Exhaust System: Exhaust manifold, muffler, catalytic converter (if applicable) Transmission: Clutch assembly, gearbox, gear selection, lubrication Drivetrain: Chain drive, sprockets, swingarm, rear suspension linkage Brakes: Front and rear brake calipers, master cylinders, brake lines, pads, rotors, bleeding procedures Suspension: Front forks (compression, rebound, oil level), rear shock absorber, linkage maintenance Electrical System: Battery, charging system (stator, regulator/rectifier), ignition system, starter motor, lighting, wiring diagrams Cooling Fan: Cooling fan operation and troubleshooting Bodywork And Frame: Body panels, seat, fuel tank, frame inspection, handlebars Wheels And Tires: Wheel bearing replacement, tire pressure, wheel balancing Controls: Throttle control, clutch lever, brake levers, gear shifter Troubleshooting: Diagnostic charts for common problems and solutions Procedures Included Preventive Maintenance: Regular service checks, lubrication points, filter replacements Corrective Maintenance: Step-by-step repair instructions for all major components Disassembly And Assembly: Detailed procedures for dismantling and reassembling all vehicle systems Adjustment Procedures: Carburetor synchronization (if applicable), chain tension, clutch free play Diagnostic Procedures: Troubleshooting guides, fault code interpretation (if applicable) Torque Specifications: Precise torque values for all critical fasteners Special Tool Requirements: Identification of specific tools needed for certain repairs Technical Depth Depth: Comprehensive: Covers routine maintenance to full engine rebuilds and advanced diagnostics. 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Print Quality Quality: High resolution, clear text and diagrams, printable Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, single-cylinder Displacement: 449cc (approximately) Bore X Stroke: Refer to manual for exact specifications Compression Ratio: Refer to manual for exact specifications Valve Train: DOHC, 4 valves Cooling System: Liquid-cooled Performance Horsepower: Estimated 50-55 HP (Varies with tuning and exhaust) Torque: Refer to manual for exact specifications Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline, minimum 90 octane Fluid Specifications Engine Oil Type: Synthetic 4-stroke motorcycle oil, SAE 10W-50 (Refer to manual for precise specification and capacity) Coolant Type: Permanent Antifreeze/Coolant (Ethylene Glycol based, 50/50 mix with distilled water) 🔧 Transmission Standard Transmission Type: 6-speed sequential manual Optional Optional Gear Ratios: Refer to manual for different gearing options or aftermarket considerations Features Clutch Type: Wet, multi-plate Fluid Specifications Transmission Oil Type: Refer to manual for specific transmission lubricant (often shared with engine oil or a dedicated gear oil) 📐 Dimensions Exterior Wheelbase: Refer to manual for exact specifications Seat Height: Refer to manual for exact specifications Weights Dry Weight: Refer to manual for exact specifications (typically around 240-250 lbs) Fuel Tank Capacity: Refer to manual for exact specifications (typically around 2.2-2.5 gallons) Wheels And Tires Front Tire Size: 80/100-21 (typical) Rear Tire Size: 110/90-19 (typical) Wheel Bolt Pattern: N/A (Spoked wheels, hub mounting) 🛡️ Safety Features Ratings Safety Certifications: N/A (Competition Off-Road Vehicle) Active Features Braking System: Hydraulic disc brakes (front and rear) for superior stopping power Passive Features Frame Construction: Robust chassis designed for off-road durability 💡 Technology Features Infotainment Infotainment...