🏷️ Basic Information Identification Make: Husqvarna Model: SM 125 S Model Code Prefix: SM Vehicle Type: Supermoto Generation Generation: First Generation Covered Model Years: 2000, 2001, 2002, 2003, 2004 👋 Introduction Market Position Market Position: Lightweight, agile supermoto aimed at urban riding and spirited performance. Competitive Analysis Competitors: Yamaha DT125X, Aprilia SX125, KTM 125 EXC Supermoto conversion. Key Features Key Features: Compact 125cc two-stroke engine, agile chassis, powerful braking for its class, distinctive supermoto styling. Target Audience Target Audience: Beginner to intermediate riders, urban commuters, those seeking a fun, accessible supermoto experience. Manual Value Proposition Manual Value Proposition: Provides essential technical knowledge for self-maintenance and repair, reducing reliance on costly dealership services. 📋 Manual Details Coverage Areas Coverage Areas: All major mechanical and electrical systems Page Count Page Count: Not specified, but comprehensive Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, troubleshooting, and repair Fuel System: Carburetor system, fuel lines, fuel tank, and related components Cooling System: Radiator, coolant hoses, thermostat, and fan operation Ignition System: Ignition coil, spark plug, CDI unit, and wiring Transmission Drivetrain: Gearbox inspection, repair, clutch service, and final drive maintenance Suspension: Front forks (oil type, level, seal replacement), rear shock absorber, linkage systems Brakes: Front and rear brake systems, caliper service, pad replacement, fluid flush, hydraulic lines Electrical System: Wiring diagrams, battery service, lighting, starter motor, charging system Chassis Frame: Frame inspection, steering head bearing service Bodywork: Fairings, seat, fuel tank cover removal and installation Procedures Included Maintenance: Regular servicing, lubrication, filter changes, fluid checks Troubleshooting: Diagnostic charts and procedures for common problems Repair: Detailed step-by-step instructions for all components and systems Disassembly Assembly: Exploded views and instructions for component removal and reinstallation Adjustments: Carburetor tuning, chain slack adjustment, clutch and brake lever adjustments Overhauls: Complete engine and gearbox rebuild procedures Technical Depth Technical Depth: Comprehensive, from basic maintenance to complete engine rebuilds 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Searchability: Likely text-searchable PDF Print Quality Print Quality: Designed for clear printing of text and diagrams Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Compatibility Operating Systems: Windows (95, 98, 2000, NT, XP, Vista, 7, 8), Mac OS ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder Bore X Stroke: 54 mm x 54.5 mm (typical for this era 125cc Husqvarna 2-stroke) Displacement: 124.8 cc Compression Ratio: Approx. 8.0:1 to 8.5:1 (may vary slightly by specific market version) Carburetor: Mikuni VM28 (common for this model) Performance Horsepower: Approximately 15-20 HP (depending on model year and emissions tuning) Torque: Not specifically detailed, but adequate for class performance. Fuel System Fuel Type: Unleaded gasoline (RON 95 recommended) Fuel Mixture: Pre-mix oil/fuel or automatic oil injection system (check specific model variant) Fuel Tank Capacity: Approx. 9-10 Liters 🔧 Transmission Standard Transmission Type: 6-speed manual Clutch Type: Wet multi-plate Features Gear Ratios: Specific ratios not provided in product info, but designed for a balance of acceleration and top speed. Final Drive: Chain drive 📐 Dimensions Exterior Wheelbase: Approx. 1430-1440 mm Seat Height: Approx. 880-900 mm Weights Dry Weight: Approx. 105-110 kg Kerb Weight: Approx. 115-120 kg (with fluids) 🛡️ Safety Features Ratings Safety Ratings: Not applicable to motorcycles in the same way as cars. Active Features Active Safety Features: Responsive braking system, agile handling, good visibility. Passive Features Passive Safety Features: Robust frame construction, standard handguards. 💡 Technology Features Infotainment Infotainment System: N/A (Basic motorcycle instrumentation) Driver Assistance Driver Assistance Features: N/A Connectivity Connectivity Features: N/A Lighting Lighting Type: Halogen headlight, standard taillight and indicator bulbs. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 km or 12 months (typical for 2-stroke). Spark Plug Replacement: Every 5,000-8,000 km (depending on plug type and usage). Air Filter Cleaning: Every 1,500-3,000 km, depending on riding conditions. Top End Rebuild: Recommended every 15,000-20,000 km for optimal performance in 2-stroke engines. Fluid Specifications Engine Oil Type: High-quality 2-stroke premix oil (JASO FD or TCW3 rated). Gearbox Oil Type: API GL-3 or GL-4, SAE 80W/90 hypoid gear oil. Coolant Type: Ethylene glycol-based antifreeze coolant (50% mixture with distilled water). Brake Fluid Type: DOT 4 brake fluid. Known Issues Known Issues: Potential for carburetor jetting issues if not properly maintained, occasional clutch wear with hard use, typical 2-stroke wear on piston and rings over extended mileage. Common Repairs: Piston ring replacement, exhaust port cleaning, carburetor cleaning and adjustment, fork seal replacement. 📚 Vehicle History Brand Heritage Brand Heritage: Husqvarna Motorcycles has a long and rich history dating back to 1903, renowned for its off-road prowess. Model Evolution Model Evolution: The SM 125 S is part of Husqvarna's expansion into the supermoto segment, building on their dirt bike expertise. This generation represents a key period for the brand under...