The SM 125, produced in 1998, is a lightweight supermoto motorcycle engineered for agile performance and spirited riding. As part of an esteemed lineage, known for its off-road heritage, this model offers a blend of off-road capability with street-focused supermoto styling. Its 124.8 cc two-stroke, liquid-cooled engine, paired with a 6-speed transmission, delivers responsive power for both recreational trail use and urban navigation. The motorcycle features a robust steel perimeter frame, telescopic front forks, and a rear shock absorber, contributing to its dynamic handling and durability. This comprehensive service manual provides essential information for the maintenance, repair, and troubleshooting of your 1998 SM 125. It covers all critical systems, including the engine, transmission, brakes, electrical system, and chassis. Detailed procedures for scheduled maintenance, component overhauls, and diagnostic tasks are outlined with clarity. The manual also includes vital technical specifications and wiring diagrams, empowering owners and technicians to effectively service and maintain the vehicle, ensuring its optimal performance and longevity. 🏷️ Basic Information Identification Make: Husqvarna Model: SM 125 Year: 1998 Type: Supermoto 👋 Introduction Market Position Segment: Lightweight Supermoto/Off-Road Motorcycle Target Audience: Enthusiasts and owners seeking to perform their own maintenance and repairs Competitive Analysis Competitors: Other 125cc off-road or supermoto models from brands like KTM, Aprilia, Yamaha, Honda, Suzuki Key Features Manual Advantage 1: Empowers owners to perform repairs independently, ensuring quality and saving costs. Manual Advantage 2: Provides in-depth technical knowledge for confident diagnosis and repair. Manual Advantage 3: Convenient PDF format for instant download and access on multiple devices. Manual Advantage 4: Covers all essential systems for complete vehicle care. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service, repair, and maintenance Secondary Coverage: Troubleshooting, electrical diagnostics, wiring diagrams Page Count Estimated Page Count: Varies by specific manual, typically 300-600 pages for comprehensive coverage Manual Type Type: Service Manual / Repair Manual / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete service, repair, and overhaul procedures for the 125cc engine Transmission: Clutch, gearbox, and final drive maintenance and repair Brakes: Front and rear brake system servicing, including hydraulic components and pad replacement Electrical System: Comprehensive electrical system diagnostics, component testing, and wiring diagrams Suspension: Front fork (telescopic) and rear shock absorber servicing, adjustments, and rebuilds Cooling System: Radiator, coolant, and related components service Fuel System: Carburetor (likely Mikuni VM series) tuning, cleaning, and overhaul; fuel tank, lines, and petcock service Emission Control: Procedures related to the emission control system (if applicable for the region/year) Chassis Body: Frame inspection, body panel removal/installation, seat, and luggage components Steering: Handlebar, triple clamps, and steering head bearing maintenance Wheels Tires: Wheel bearing service, tire pressure, and mounting/dismounting procedures Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug service Troubleshooting: Step-by-step diagnostic procedures for common operational issues Repair: Detailed instructions for component disassembly, repair, and reassembly Refurbishment Renovation: Guidance on restoring components and the overall vehicle Wiring Diagrams: Complete electrical system schematics for accurate troubleshooting and repair Technical Depth Depth: Covers from basic user maintenance to in-depth engine rebuilds and electrical diagnostics 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Compatibility: Compatible with all Windows and Mac operating systems Software Requirements: Adobe Acrobat Reader (free) and WinZip or similar utility (for extraction if compressed) Print Quality Quality: High-resolution scans suitable for printing Binding Type Type: N/A (Digital Download - PDF) Paper Type Type: N/A (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder Displacement: 124.8 cc (approximate) Bore X Stroke: Typically 54 mm x 54.5 mm (refer to manual for exact specification) Cooling System: Liquid-cooled Ignition System: CDI (Capacitor Discharge Ignition) Performance Horsepower: Approximately 28-32 hp (varies by tuning and market regulations, refer to manual for exact spec) Torque: Approximately 20-22 Nm (refer to manual for exact specification) Fuel System Carburetor Type: Single Carburetor, likely Mikuni VM28 or similar Fuel Type: Unleaded gasoline (95 RON or higher recommended) Oil Mixture: Premix (specific oil-to-fuel ratio detailed in manual, typically 1:30 to 1:50) 🔧 Transmission Standard Type: 6-speed constant mesh manual transmission Optional Type: N/A (no optional transmissions typically offered for this model) Features Clutch Type: Wet, multi-plate clutch Final Drive: Chain drive Transmission Oil Type: SAE 10W-30 or SAE 10W-40 API SG or higher (refer to manual for exact specification) 📐 Dimensions Exterior Length: Varies by specific SM configuration, typically around 2000-2100 mm Width: Varies, typically around 750-850 mm Height: Varies, typically around 1100-1200 mm Wheelbase: Approximately 1400-1450 mm Weights Dry Weight: Approximately 95-105 kg (refer to manual for exact specification) Fuel Tank Capacity: Approximately 8-10 liters 🛡️ Safety Features Ratings Crash Test Ratings: N/A (Motorcycles are not typically rated by consumer safety organizations like NHTSA or Euro NCAP) Active Features Braking System: Front: Disc brake (single or dual, depending on specific variant), Rear: Disc...