Positioning:
Performance-oriented motocross motorcycle, aimed at enthusiasts and semi-professional riders.
Competitors:
KTM 250 SX, Yamaha YZ250, Honda CRF250X, Suzuki RM-Z250.
Vehicle Highlights:
Lightweight chassis, potent 2-stroke engine, agile handling, designed for competitive motocross use.
Objective:
To enable technicians and owners to perform accurate repairs, maintenance, and overhauls, ensuring optimal performance and longevity of the Husqvarna TC 250.
Engine:
Complete disassembly and reassembly, troubleshooting, performance tuning
Transmission:
Complete disassembly and reassembly, troubleshooting
Fuel System:
Carburetor (jetting, maintenance, overhaul), fuel pump, fuel lines, fuel tank
Ignition System:
Ignition timing, spark plug specifications, coil testing, CDI unit troubleshooting
Lubrication System:
Oil pump, oil filter, oil passages, oil type and capacity specifications
Exhaust System:
Exhaust pipe, muffler inspection and maintenance
Electrical System:
Wiring diagrams, component testing (lights, horn, battery, stator, rectifier/regulator)
Bodywork:
Fairings, seat, handlebars, footpegs, plastics removal and installation
Suspension:
Front forks (rebuild, adjustments, oil levels), rear shock absorber (rebuild, adjustments, spring preload).
Wheels And Tires:
Wheel bearing service, spoke tension, tire pressure, tire replacement.
Brakes:
Front and rear brake caliper service, master cylinder overhaul, brake line replacement, pad replacement, bleeding procedure.
Cooling System:
Radiator inspection, coolant hose replacement, water pump service.
Frame And Body:
Includes procedures for removing and reinstalling body panels, seat, fuel tank, and chassis components.
Routine Maintenance:
Tune-ups, fluid changes, filter replacement, chain adjustment, brake pad inspection
Removal Installation:
Component removal and reinstallation procedures for all major systems
Assembly Disassembly:
Detailed step-by-step instructions for major component disassembly and assembly
Troubleshooting:
Diagnostic procedures for common and complex issues across all systems
Engine Tuning:
Carburetor tuning, ignition timing checks, exhaust system optimization.
Chassis Maintenance:
Steering head bearing service, swingarm pivot bearing service, linkage bearing service.
Depth:
Comprehensive, covering basic maintenance to complete engine and transmission rebuilds, including special tool identification.
Special Tools:
Identifies and illustrates recommended or required special tools for specific adjustments and repairs (e.g., flywheel puller, clutch holding tool).
Type:
2-stroke, single-cylinder
Displacement:
Approx. 250cc (Specific bore/stroke not provided in product description, but standard for the class)
Bore X Stroke:
Specific dimensions would be detailed in the manual, typically around 66.4 mm x 72 mm for a 250cc 2-stroke.
Horsepower:
Estimated 45-50 HP (typical for this class and era, specific figure not in product data)
Torque:
Estimated 25-30 lb-ft (typical for this class and era, specific figure not in product data)
Carburetor Type:
Mikuni VM34 or similar (common for this model, specific type not in product data)
Fuel Type:
Unleaded gasoline with 2-stroke oil premix (specific ratio in manual)
Oil Change:
Recommended every 10-15 hours of operation or as per manual (specifics in manual).
Air Filter Cleaning:
Frequent cleaning, often after every few rides, depending on conditions (detailed in manual).
Top End Rebuild:
Recommended based on hours of use, typically between 40-80 hours for piston/rings (detailed in manual).
Engine Oil:
Specific 2-stroke premix oil and transmission oil type/grade (detailed in manual, e.g., Motorex or equivalent).
Coolant:
Ethylene glycol-based coolant with anti-corrosion additives (specific mix ratio and type in manual).
Transmission Oil Capacity:
Approximately 0.7 - 0.8 liters (specific grade like SAE 75W/90 or 10W-40, as per manual).
Common Wear Items:
Clutch plates, piston rings, spark plug, air filter, chain and sprockets, wheel bearings.
Carburetor Tuning:
May require re-jetting depending on altitude and environmental conditions.
Suspension Maintenance:
Fork seal and shock absorber maintenance/rebuild required periodically.
Electrical Connector Corrosion:
Can be an issue in off-road environments; manual provides inspection and cleaning procedures.
Brand Origin:
Swedish, with a long history dating back to 1903, known for motorcycles and outdoor power products.
Tc Series Evolution:
The TC series represents Husqvarna's commitment to motocross, with continuous development in engine performance, suspension, and chassis dynamics.
Manufacturing Location:
Likely Italy (Husqvarna motorcycles were manufactured in Italy under the Cagiva Group ownership during this period).
