Target Audience:
Owners of Husqvarna TE, TC, and SM models seeking to perform maintenance, repairs, or restoration
Value Proposition:
Provides comprehensive, actionable information to reduce reliance on professional servicing and enhance vehicle longevity
Comparison To Others:
Offers a level of detail often exceeding basic owner's manuals and generic repair guides, specifically tailored to Husqvarna models
Completeness:
Extensive coverage from routine maintenance to complete engine rebuilds
Organization:
Includes a detailed table of contents for efficient navigation
Clarity:
Utilizes clear language and illustrations for understandable procedures
Engine:
Detailed engine overhaul, tuning, diagnostics, lubrication system, cooling system, fuel injection system, ignition system
Transmission:
Gearbox inspection, repair, rebuild, clutch system, drive shafts
Chassis And Suspension:
Frame inspection, fork service, shock absorber adjustment and rebuild, swingarm, steering head bearings, wheel bearing replacement
Brakes:
Brake system overhaul, hydraulic system bleeding, pad and rotor replacement, caliper service
Electrical System:
Wiring diagrams, battery maintenance, starter system, lighting system, charging system, electronic control unit (ECU) diagnostics
Fuel System:
Fuel tank service, fuel pump operation, fuel filter replacement, fuel injection cleaning and diagnosis
Cooling System:
Radiator service, coolant replacement, thermostat inspection, water pump maintenance
Exhaust System:
Exhaust component inspection, replacement, gasket service
Body And Fairings:
Panel removal and installation, seat servicing, graphic application
Maintenance:
Scheduled maintenance intervals, routine checks, fluid changes, filter replacements, chain adjustment and lubrication
Troubleshooting:
Diagnostic procedures for common faults, symptom-based troubleshooting guides
Repair:
Step-by-step repair instructions for all major components and systems
Rebuild:
Detailed procedures for engine, transmission, and suspension component rebuilds
Disassembly And Assembly:
Complete guides for component disassembly and reassembly
Depth:
In-depth technical information suitable for professional mechanics and experienced DIY enthusiasts
Diagnostic Focus:
Advanced diagnostic techniques and fault code interpretation (where applicable)
Torque Specifications:
All critical torque specifications for engine, chassis, and fasteners
Clearances And Tolerances:
Precise specifications for internal component clearances and wear tolerances
Special Tools:
Identification and usage of specialized tools required for specific procedures
Engine Sizes:
250cc, 400cc, 450cc (specific displacements may vary by model year and variant within the covered range)
Bore And Stroke:
Varies by specific model and engine size; detailed specifications found within the manual
Valve Train:
DOHC (Double Overhead Camshaft) with 4 valves per cylinder typical for this era
Horsepower:
Varies by specific model and engine size; typical ranges from mid-30s to mid-40s HP for these displacements, depending on tuning and model.
Torque:
Varies by specific model and engine size; torque figures are essential for proper engine tuning and are detailed in the manual.
Fuel Delivery:
Fuel Injection (FI) systems, likely Keihin or Mikuni components, with detailed diagnostic and adjustment procedures in the manual.
Fuel Type:
Unleaded gasoline (Octane rating recommendations will be specified in the manual, typically 91+ AKI).
Oil Type:
Synthetic motorcycle-specific engine oil, likely SAE 10W-40 or 10W-50, with exact specifications and capacities provided.
Cooling Method:
Liquid-cooled via radiator and fan system
Transmission Type:
6-speed sequential manual transmission
Optional Gearbox:
N/A (Standard for this type of motorcycle)
Clutch Type:
Hydraulic-actuated wet multi-plate clutch
Gear Ratios:
Specific gear ratios for each model and year are detailed within the manual.
Transmission Oil:
Dedicated transmission oil or engine oil as per manufacturer's specification, with specific grades and capacities provided.
Wheelbase:
Varies by model (TE - Enduro, TC - Motocross, SM - Supermoto), typically around 57-60 inches.
Seat Height:
Varies by model, typically high for off-road variants.
Dry Weight:
Varies by model and engine size, typically in the range of 230-260 lbs.
Infotainment System:
N/A (Performance-oriented motorcycles of this era typically feature minimal electronics focused on engine management and basic instrumentation).
Rider Aids:
None (These are performance off-road/supermoto motorcycles without electronic rider aids like ABS or traction control).
Connectivity Features:
N/A
Display Type:
Digital LCD instrument cluster displaying speed, RPM, odometer, trip meter, and basic indicator lights.
Oil Change Interval:
Typically every 15-20 hours of riding or annually, whichever comes first. Specifics in manual.
Air Filter Cleaning:
Regular cleaning recommended, especially after dusty riding conditions. Frequency detailed in manual.
Spark Plug Replacement:
Recommended every 100-150 hours of riding or as needed based on inspection.
Valve Clearance Check:
Critical periodic maintenance, typically every 50-100 hours. Manual provides exact intervals and procedures.
Engine Oil Spec:
SAE 10W-40 or 10W-50 Motorcycle 4-Stroke Synthetic (specific API and JASO MA/MA2 rating will be detailed).
Coolant Spec:
Ethylene glycol-based antifreeze/coolant mixture (50/50 ratio with distilled water). Specific brand recommendations may be in the manual.
Brake Fluid Spec:
DOT 4 or DOT 5.1 hydraulic brake fluid (check manual for exact specification).
Fork Oil Spec:
Specific grade of suspension fork oil (e.g., KYB 01M, Motorex Fork Oil) with specified level and quantity.
Common Wear Items:
Clutch plates, chain and sprockets, wheel bearings, steering head bearings, fork seals, piston rings, valve guides.
Potential Electrical Issues:
Wiring harness chafing, stator or rectifier issues (less common but possible, covered in diagnostics).
Heritage:
Husqvarna Motorcycles has a long and storied history dating back to 1903, originally in Sweden, known for its off-road and performance motorcycles.
Evolution 250 450:
The TE (Enduro), TC (Motocross), and SM (Supermoto) lines represent Husqvarna's diversification into various off-road and street-legal performance categories. The four-stroke engines in this era marked a significant technological advancement for the brand.
Manufacturing Origin:
Prior to KTM acquisition, production was primarily in Sweden, then later in Italy under ownership by Cagiva Group (MV Agusta parent).
