The SM 125 is a Supermoto Motorcycle produced in 1998, representing a blend of off-road agility and street performance. Originating from one of the oldest motorcycle manufacturers, this model is known for its sporty handling and robust engineering, suitable for both spirited riding and practical transportation. Its design, typical of the supermoto category, features a powerful two-stroke, single-cylinder engine, liquid cooling, and a responsive chassis with performance-oriented suspension and braking systems. This comprehensive Service and Repair Manual provides detailed guidance for maintaining and repairing the 1998 SM 125. Covering all major vehicle systems, including the engine, fuel system, electrical components, and chassis, it offers step-by-step instructions, hundreds of photos and illustrations, and troubleshooting advice. The manual is designed for do-it-yourself enthusiasts and experienced mechanics, enabling users to perform everything from routine maintenance to complete overhauls, thereby saving on service costs and ensuring the longevity of their vehicle. 🏷️ Basic Information Identification Make: Husqvarna Model: SM 125 Year: 1998 Vehicle Type: Supermoto Motorcycle Codes Manual Product Name: Husqvarna SM 125 1998 Service Repair Manual PDF Download 👋 Introduction Market Position Target Audience: Do-it-yourself enthusiasts and experienced mechanics Competitive Analysis Value Proposition: Inexpensive way to maintain and repair the vehicle, saving on professional service costs Key Features Instructional Method: Step-by-step instructions based on complete disassembly Visual Aids: Hundreds of photos and illustrations Knowledge Building: Enables users to learn about their vehicle and prevent future problems 📋 Manual Details Coverage Areas Manual Type: Service and Repair Manual Language: English Format: PDF File Delivery: Instant Download Page Count Page Count Estimation: Estimated 300-500 pages (typical for comprehensive service manuals) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, internal components, lubrication, cooling, starting systems Fuel System: Carburetor adjustment and overhaul, fuel pump, fuel lines, filters Cooling System: Radiator, coolant, hoses, thermostat, fan operation Electrical System: Ignition system, lighting, charging system, starter motor, battery, wiring diagrams Chassis: Frame, suspension (front forks, rear shock), steering, wheels, brakes, drivetrain (chain, sprockets) Emission Control Information: Relevant emission control systems and their servicing (if applicable to model year) General Information: Vehicle identification, safety precautions, general maintenance guidelines, specifications overview. Services Information: Torque specifications, fastener tightening sequences, special tools required, general repair advice. Procedures Included Maintenance: Periodic maintenance schedules, oil changes, filter replacements, chain adjustment, brake checks Repair: Step-by-step repair instructions for all major vehicle systems Rebuild: Detailed procedures for engine, transmission, and suspension component rebuilding Troubleshooting: Diagnostic procedures for common problems and fault finding Technical Depth Depth: Comprehensive, covering from basic maintenance to advanced repair and rebuilding procedures 📊 Manual Specifications File Format File Format: PDF Print Quality Printability: Fully Printable Zoom Functionality: Zoom IN/OUT enabled Binding Type Binding Type: Digital (printable) Paper Type Paper Type: N/A (Digital) Software Requirements PDF Reader: Adobe PDF Reader Unzipping Tool: WinZIP or compatible archive utility Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder (typical for SM 125) Displacement: 125cc (approximate, specific variant may exist) Performance Horsepower: Typically around 30-35 HP (varies by specific model and tuning) Torque: Not explicitly stated, but expected to be performance-oriented for supermoto use Fuel System Carburetion: Likely a Dell'Orto or similar performance carburetor (e.g., PHBH, VHSB) Fuel Type: Unleaded gasoline with appropriate two-stroke oil pre-mix ratio Cooling System Cooling Method: Liquid-cooled Lubrication Oil Type: High-quality synthetic two-stroke engine oil 🔧 Transmission Standard Transmission Type: 6-speed constant mesh sequential gearbox Clutch Type: Wet multi-plate clutch Features Final Drive: Chain drive 📐 Dimensions Exterior Wheelbase: Refer to specific model year specifications within the manual Weights Dry Weight: Approx. 100-110 kg (typical for this class) Fuel Tank Capacity: Typically 8-10 liters 🛡️ Safety Features Ratings Safety Certification: Not applicable for motorcycle safety ratings in the same manner as cars; focused on operational safety Active Features Braking System: Hydraulic disc brakes front and rear (e.g., Brembo calipers common) Suspension System: Upside-down front forks, adjustable rear monoshock (performance oriented) Passive Features Frame Construction: Steel or aluminum perimeter frame 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer, speedometer, odometer, trip meter, indicator lights (neutral, turn signals, etc.) Driver Assistance ABS: Not typically equipped on this model; ABS was not common on smaller displacement motorcycles of this era. Connectivity Bluetooth: Not applicable 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual; typically every 20-30 engine hours or annually for sporadic use. Spark Plug Replacement: Refer to manual; typically every 5,000-10,000 km or as per manual recommendations. Air Filter Cleaning: Frequent cleaning/replacement recommended based on riding conditions (dusty environments). Fluid Specifications Engine Oil Type: Specific 2-stroke engine oil for premix (e.g., Motul 710, Castrol TTS) and gearbox oil (e.g., SAE 10W-40 API GL-4) Coolant Type: Ethylene glycol-based antifreeze coolant with corrosion inhibitors Known Issues Carburetor Tuning: Can be sensitive to altitude and temperature changes; requires proper jetting for optimal performance. Power Valve Operation: Can...