Category:
Competition/Motocross Motorcycle
Competitors 2011 2012:
KTM 450 SX-F, Yamaha YZ450F, Honda CRF450R, Kawasaki KX450F, Suzuki RM-Z450
Engine Layout:
Single-cylinder, four-stroke
Frame Design:
Steel CrMo steel frame
Unique Selling Point:
Often featured advanced technology for its time, including sophisticated fuel injection and chassis designs derived from road-racing heritage.
Engine:
Complete engine teardown, assembly, diagnostics, and repair
Cooling System:
Radiator, hoses, thermostat, coolant specifications, bleeding procedures
Fuel System:
Fuel injection system, fuel pump, injectors, troubleshooting, cleaning
Transmission:
Gearbox, clutch, shifting mechanisms, lubrication, disassembly and reassembly
Drive Chain And Sprockets:
Inspection, adjustment, lubrication, replacement procedures, torque specifications
Electrical System:
Wiring diagrams, ignition system, lighting, battery, starter, charging system, troubleshooting
Steering System:
Handlebars, triple clamps, steering bearings, inspection and maintenance
Suspension And Shocks:
Front forks (internal components, oil changes, seal replacement), rear shock absorber (service, adjustments)
Body Work And Plastics:
Fairings, seat, fenders, graphics, removal and installation procedures
Intake And Exhaust:
Airbox, filter, exhaust system, gasket replacement
Routine Maintenance:
Oil changes, filter replacements, chain adjustments, spark plug service, air filter cleaning
Periodic Checks And Adjustments:
Valve clearance checks, clutch lever free play, brake lever free play
Troubleshooting:
Advanced diagnostic procedures for common and uncommon issues
Engine Rebuild:
Complete engine disassembly, component inspection, reassembly, and tuning
Wiring Diagram Interpretation:
Detailed electrical schematics with component identification
Depth:
Comprehensive, from basic maintenance to complete engine and chassis overhauls
Target Audience:
Home mechanics with basic to intermediate skills, professional technicians
Engine Type:
4-stroke, single-cylinder
Displacement:
Approximately 449.5 cc
Bore X Stroke:
Approximately 95 mm x 63.4 mm (Specific to engine variant, refer to manual for exact)
Valve Train:
DOHC, 4 valves
Horsepower:
Estimated 50-55 HP (Varies with tuning and specific model year, refer to manual for exact)
Torque:
Estimated 45-50 Nm (Varies with tuning and specific model year, refer to manual for exact)
Fuel Delivery:
Electronic Fuel Injection (EFI) with Keihin throttle body (specific size may vary)
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2
Oil Type:
High-performance motorcycle specific 4-stroke engine oil, JASO MA rated (e.g., Motul 3000 10W-40, Bel-Ray EXS 4T 10W-40 - refer to manual for exact specifications)
Coolant Type:
Ethylene glycol based antifreeze mixture (50/50) with distilled water (refer to manual for specific part numbers or types)
Type:
Constant-mesh, 5-speed sequential gearbox
Optional Gearing:
N/A (Standard configuration)
Clutch Type:
Wet, multi-plate, hydraulic actuation
Transmission Oil Type:
Same as engine oil (JASO MA rated 4-stroke motorcycle oil, refer to manual for exact specifications)
Safety Certification:
N/A (Off-road competition motorcycle, not typically road-registered or crash tested for passenger safety standards)
Brakes Front:
Hydraulic disc brake, Brembo caliper, approximately 260mm rotor
Brakes Rear:
Hydraulic disc brake, Brembo caliper, approximately 240mm rotor
Frame Material:
Steel CrMo
Handlebar Type:
Fatbar (28.6mm) aluminum handlebar
Engine Oil Change:
Every 10-15 hours of riding or annually (whichever comes first, refer to manual for precise recommendations based on usage)
Air Filter Cleaning:
Every 5-10 hours of riding, or more frequently in dusty conditions
Chain Lubrication And Adjustment:
Every ride or every 5-10 hours
Valve Clearance Check:
Every 20-30 hours of riding (critical for performance and longevity)
Engine Oil Capacity:
Approximately 1.2 liters (1.27 US quarts) with filter change (refer to manual for exact capacity and fill procedure)
Transmission Oil Capacity:
Integrated with engine oil system in many configurations, refer to manual for clarification
Fork Oil Type And Volume:
Specific viscosity grade (e.g., SAE 5W or 7.5W) and volume per fork leg (refer to manual for exact specifications and procedures)
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, wheel bearings, fork seals
Potential Problems 2011 2012:
Some early models may have experienced specific EFI mapping or cooling system minor leaks; the manual will detail troubleshooting for these.
Manufacturer Origin:
Sweden
Motorcycle Specialization:
Known for off-road, enduro, and motocross motorcycles.
Tc Series Development:
The TC series represents Husqvarna's commitment to motocross competition, with the 449 model evolving from previous iterations, often incorporating Italian engineering influence following BMW's acquisition.
Manufacturing Location:
Italy (during the BMW ownership period)
