Category:
High-performance Supermoto motorcycle.
Target Audience:
Enthusiasts, home mechanics, professional technicians working on Husqvarna Supermoto motorcycles.
Competitors 2006 2007:
KTM (e.g., 525 EXC/SMC), Yamaha (e.g., YZ450F converted to supermoto), Honda (e.g., CRF450X converted), Suzuki (e.g., RM-Z450 converted), Aprilia SXV series.
Engine Type:
Liquid-cooled, four-stroke single-cylinder.
Chassis Type:
Steel trellis frame (typical for Husqvarna of this era).
Suspension Type:
Upside-down telescopic front forks, monoshock rear suspension with linkage.
Braking System:
High-performance hydraulic disc brakes front and rear, often with larger diameter rotors for supermoto use.
Wheel Size:
Typically 17-inch front and rear wheels for supermoto configuration.
Engine:
Engine disassembly, assembly, tuning, troubleshooting, component identification, specifications.
Transmission:
Gearbox disassembly, assembly, troubleshooting, lubrication, specifications.
Clutch:
Clutch operation, adjustment, service, component specifications.
Fuel System:
Carburetor (likely Keihin FCR or similar for these models) tuning, cleaning, troubleshooting, fuel pump, fuel lines.
Ignition System:
Ignition timing, components (CDI, coil, spark plug), troubleshooting, specifications.
Cooling System:
Radiator, hoses, coolant specifications, fan operation, bleeding.
Electrical System:
Wiring diagrams, battery, charging system (stator/generator), lighting, starter motor, fuses, relays, troubleshooting.
Chassis And Frame:
Frame inspection, reinforcement, steering head bearing service.
Suspension:
Front fork (upside-down, likely Marzocchi or Sachs) service, adjustments, oil types, damping settings. Rear shock absorber service, adjustments, linkage maintenance.
Brakes:
Brake system service (hydraulic), caliper maintenance, master cylinder service, bleeding procedures, pad replacement, rotor specifications.
Wheels And Tires:
Tire pressures, wheel bearing service, spoke tensioning (if applicable), rim specifications.
Exhaust System:
Exhaust system inspection, component replacement, tuning considerations.
Bodywork And Fairings:
Fairing removal and installation, seat, fuel tank, fender service.
Routine Maintenance:
Oil changes, filter replacements, chain maintenance, spark plug service, air filter cleaning/replacement, brake fluid flush.
Troubleshooting:
Step-by-step diagnostic procedures for common and uncommon issues.
Repair And Rebuild:
Complete disassembly and reassembly guides for major components.
Adjustments:
Carburetor synchronization, valve clearance adjustments, suspension adjustments, chain slack adjustment.
Torque Specifications:
Detailed torque values for critical fasteners.
Wiring Diagrams:
Comprehensive electrical system schematics.
Depth:
Complete workshop level, covering everything from basic maintenance to full engine and transmission rebuilds.
Diagrams And Illustrations:
Features exploded views, diagrams, and step-by-step illustrations to aid in understanding.
Type:
Liquid-cooled, 4-stroke, DOHC, single-cylinder
Bore X Stroke 400:
Approximately 84 mm x 72 mm (est. for 400cc class)
Bore X Stroke 450:
Approximately 93 mm x 63.4 mm (est. for 450cc class)
Bore X Stroke 510:
Approximately 97 mm x 70.5 mm (est. for 510cc class)
Compression Ratio:
Varies by model, typically around 11.0:1 to 12.5:1
Horsepower 400:
Approx. 40-45 HP (est.)
Horsepower 450:
Approx. 45-50 HP (est.)
Horsepower 510:
Approx. 50-55 HP (est.)
Torque:
Specific figures vary, but expected to be robust for their displacement.
Carburetor Type:
High-performance flat-slide carburetor (e.g., Keihin FCR MX 39mm or 41mm likely)
Fuel Type:
Unleaded gasoline (Octane rating specified in manual, likely 91+)
Fuel Tank Capacity:
Typically around 7-10 liters (1.8-2.6 gallons)
Crash Test Results:
N/A (Motorcycles are not typically subject to automotive crash testing standards)
Braking:
High-performance hydraulic disc brakes front and rear, radial-mount calipers on some models for improved stopping power.
Suspension Tuning:
Adjustable suspension for optimal handling and rider control.
Lighting:
Headlight, taillight, brake lights, turn signals (as per street-legal requirements in most markets).
Frame Design:
Robust chassis providing stability and rider feedback.
Engine Oil Change:
Typically every 50-100 operating hours or annually, check manual for specifics. (e.g., 3,000 km / 1,800 miles if street ridden frequently)
Air Filter Cleaning:
Regularly, especially in dusty conditions. (e.g., every 10-20 operating hours)
Spark Plug Replacement:
Approximately every 100-150 operating hours or as per manual recommendation.
Valve Clearance Check:
Typically every 100-200 operating hours or annually.
Brake Fluid Change:
Annually or as needed.
Engine Oil Type:
Motorcycle specific 4-stroke engine oil, SAE 10W-40 or 15W-50 recommended (check manual for precise viscosity and API/JASO rating, e.g., JASO MA)
Engine Oil Capacity:
Approx. 1.0-1.5 liters (check manual for exact capacity)
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors (e.g., Motorex M3.0 or equivalent).
Brake Fluid Type:
DOT 4 or DOT 5.1 hydraulic brake fluid.
Fork Oil Type:
Specific fork oil viscosity (e.g., SAE 5W or 7.5W, check manual for exact type and level).
Transmission Oil:
Often shares oil with the engine, or requires a separate transmission oil if so specified (check manual).
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, wheel bearings, fork seals.
Engine Performance Tuning:
Carburetor tuning can be sensitive to altitude and temperature changes; proper jetting is crucial.
Electrical Connections:
Ensure all electrical connectors are clean and secure to prevent intermittent issues.
Suspension Maintenance:
Regular fork oil changes and seal inspection are important for optimal performance and longevity.
Origin:
Husqvarna Motorcycles, founded in Sweden in 1903, is one of the oldest motorcycle manufacturers.
Specialty:
Known for off-road and motocross motorcycles, later expanding into enduro and supermoto.
Supermoto Lineage:
Husqvarna has a strong presence in the supermoto segment, building on their off-road prowess.
Technical Advancements 2006 2007:
These models represent a period of refinement for Husqvarna's single-cylinder platform, with robust engines and advanced chassis components.
Manufacturing Location:
Primarily Italy during this period (under BMW ownership before the KTM acquisition).
