Vehicle Segment:
High-performance Supermoto, street-legal dirt bike variant.
Target Audience:
Enthusiasts and owners focused on performance, handling, and customization of their Husqvarna Supermoto.
Key Competitors:
KTM EXC/SMC series, Yamaha WRX/YZF, Suzuki DR-Z, Honda CRF (converted).
Manual Value Proposition:
Provides expert guidance for comprehensive repair, maintenance, and restoration, empowering owners to perform complex tasks.
Vehicle Key Selling Points:
Agile handling, powerful single-cylinder engines, off-road heritage adapted for street performance.
Engine Systems:
Engine overhaul, top-end rebuild, lubrication, cooling, fuel system (carburetor), ignition, exhaust, starting system.
Drivetrain Systems:
Clutch, gearbox, final drive (chain and sprockets).
Chassis Systems:
Frame, suspension (forks and rear shock), steering, wheels, tires, brakes (front and rear).
Electrical Systems:
Wiring diagrams, lighting, battery, charging system, control units.
Bodywork And Plastics:
Fairings, seat, fuel tank, fenders, plastics removal and installation.
Maintenance Procedures:
Routine checks, oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement.
Repair Procedures:
Engine teardown and reassembly, carburetor tuning and rebuilding, suspension servicing, brake caliper overhauls, wheel bearing replacement.
Troubleshooting:
Diagnostic guides for common problems, fault finding charts.
Diagnostic Capability:
Detailed diagnostic procedures, component testing, specifications for critical measurements.
Rebuild Capability:
Complete engine and gearbox rebuild instructions, including torque specifications and clearances.
Restoration Support:
Detailed disassembly and reassembly steps suitable for complete refurbishment.
Engine Type:
Liquid-cooled, four-stroke single-cylinder (SOHC or DOHC depending on specific model variant within the series).
Engine Variants:
SM 400 (approx. 398cc), SM 450 (approx. 449cc), SM 510 (approx. 501cc or similar).
Horsepower Range:
Estimated 45-55 HP (varies by model and tuning).
Torque Range:
Estimated 35-45 lb-ft (varies by model and tuning).
Fuel Delivery:
Carbureted (e.g., Keihin FCR).
Fuel Type:
Unleaded gasoline, typically 90+ octane.
Oil Type:
SAE 10W-40 or 15W-50 Synthetic Motorcycle Oil (API SG or higher, JASO MA certified).
Cooling System:
Liquid-cooled.
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors.
Transmission Type:
6-speed constant mesh manual gearbox.
Transmission Options:
N/A (Standard 6-speed manual).
Clutch Type:
Hydraulically operated wet multi-plate clutch.
Transmission Fluid:
API GL-4 or GL-5 SAE 75W/90 or 80W-90 Gear Oil (specific type may vary, refer to manual).
Crash Test Ratings:
N/A (Motorcycle, not subject to automotive crash testing standards).
Braking System:
Hydraulic disc brakes front and rear. Typically dual front discs with multi-piston calipers (e.g., Brembo) and a single rear disc.
Suspension Features:
Adjustable front forks (compression, rebound, preload) and adjustable rear monoshock (preload, rebound, compression).
Lighting:
Headlight, taillight, brake lights, turn signals.
Oil Change Interval:
Every 3,000-5,000 km or annually (refer to manual for exact intervals based on usage).
Air Filter Cleaning Interval:
Every 1,000-2,000 km or as needed based on riding conditions.
Spark Plug Replacement Interval:
Every 6,000-10,000 km (depending on spark plug type).
Valve Clearance Check:
Every 6,000-10,000 km (critical for performance).
Brake Fluid Type:
DOT 4 brake fluid.
Coolant Capacity:
Approx. 1.0-1.5 liters (refer to manual).
Common Wear Items:
Clutch plates, wheel bearings, fork seals, chain and sprockets.
Potential Engine Issues:
Valve guide wear on high-mileage units, carburetor tuning sensitivity.
Maintenance Schedule Detail
Schedule Coverage:
Provides detailed mileage/time-based maintenance schedules for all major systems.
Brand Origin:
Swedish, with a strong legacy in off-road and motocross racing.
Supermoto Development:
Husqvarna adapted its successful off-road platforms (like the EXC) into competitive Supermoto models, blending agility with street legality and performance.
Manufacturing Location:
Likely manufactured in Italy by Husqvarna Motorcycles (at the time, owned by MV Agusta Group).
Motocross Heritage:
Husqvarna's extensive history and success in off-road and motocross competitions lend credibility and performance pedigree to its supermoto models.
Editorial Reviews:
Likely received positive reviews for handling, braking, and engine power from motorcycle publications of the era, praising its aggressive street performance.
Emission Standards:
Meets emissions standards for road legality in its primary markets (e.g., Euro 3).
