Segment:
        
        
            Lightweight dual-purpose/enduro motorcycle, often used for off-road riding and light street use.
        
     
    
        
            Target Audience:
        
        
            Enthusiasts seeking to maintain and repair their 1998 Husqvarna WRE 125 SM 125, covering both routine maintenance and complex repairs.
        
     
    
    
        
            Competitors:
        
        
            Models from KTM (e.g., EXC series), Yamaha (e.g., WR series), Honda (e.g., CR series), Suzuki (e.g., RM series) during the same era, though Husqvarna occupied a more niche segment.
        
     
    
    
        
            Vehicle Focus:
        
        
            Agile off-road performance with dual-purpose capability, characterized by its lightweight chassis and potent 125cc two-stroke engine.
        
     
    
        
            Manual Value:
        
        
            Essential for preserving the operational integrity and performance of a classic Husqvarna model.
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            Workshop service and repair procedures for the 1998 Husqvarna WRE 125 SM 125 Dual Purpose.
        
     
    
        
            Secondary Coverage:
        
        
            Maintenance, troubleshooting, diagnostics, and component replacement.
        
     
    
    
        
            Estimated Page Count:
        
        
            Likely in the range of 300-500 pages based on typical OEM manuals for this complexity.
        
     
    
    
        
            Type:
        
        
            Workshop Service Repair Manual
        
     
    
        
            Purpose:
        
        
            Comprehensive guide for mechanics and owners performing maintenance and repairs.
        
     
    
    
    
    
 
    
    
    
        
            Engine:
        
        
            Complete engine overhaul, disassembly, assembly, tuning, carburetion, ignition system, cooling system (if applicable), lubrication system.
        
     
    
        
            Transmission:
        
        
            Gearbox inspection, maintenance, disassembly, assembly, clutch operation, shift mechanism.
        
     
    
        
            Chassis:
        
        
            Frame inspection, suspension (front forks, rear shock absorber), steering system, wheels, hubs, spokes, bearings.
        
     
    
        
            Brakes:
        
        
            Hydraulic brake system (front and rear), brake pad replacement, caliper service, master cylinder service, brake fluid specifications.
        
     
    
        
            Electrical:
        
        
            Wiring diagrams, lighting system, battery, charging system (alternator/stator), ignition coil, starter motor, fuses, switches.
        
     
    
        
            Fuel System:
        
        
            Fuel tank, fuel lines, fuel petcock, carburetor model and tuning (e.g., Mikuni VM series), air filter.
        
     
    
        
            Exhaust System:
        
        
            Exhaust pipe, muffler, removal and installation, gasket replacement.
        
     
    
        
            Bodywork:
        
        
            Fenders, side panels, seat, fuel tank cover, handlebars, controls.
        
     
    
    
        
            Maintenance:
        
        
            Regular service checks, oil changes, filter replacements, chain adjustment, lubrication points, spark plug replacement.
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic flowcharts for common problems, symptom-based troubleshooting.
        
     
    
        
            Repair:
        
        
            Step-by-step instructions for component disassembly, repair, and reassembly.
        
     
    
        
            Diagnostics:
        
        
            Procedures for identifying faults in the engine, electrical, and mechanical systems.
        
     
    
        
            Adjustments:
        
        
            Carburetor tuning, ignition timing, clutch and brake lever adjustments, suspension settings.
        
     
    
    
        
            Depth:
        
        
            Comprehensive OEM level detail, suitable for professional mechanics and experienced DIY enthusiasts. Covers everything from basic fluid changes to complete engine rebuilds.
        
     
 
    
    
    
        
            Type:
        
        
            Two-stroke, single-cylinder
        
     
    
        
            Displacement:
        
        
            Approximately 125cc
        
     
    
        
            Bore X Stroke:
        
        
            Specific dimensions would be detailed in the manual, e.g., 54mm x 54.5mm (typical for this era).
        
     
    
        
            Cooling System:
        
        
            Liquid-cooled
        
     
    
        
            Power Output:
        
        
            Estimated 25-35 HP (at crankshaft), depending on tune and specific model variant.
        
     
    
        
            Torque:
        
        
            Details available in manual, typically peak torque in the mid-range.
        
     
    
    
        
            Carburetor:
        
        
            Likely Mikuni VM series (e.g., VM28 or VM34), with specific jetting and adjustment procedures in the manual.
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline with 2-stroke oil pre-mix (e.g., 40:1 or 50:1 ratio specified).
        
     
    
    
        
            Type:
        
        
            Premix lubrication system.
        
     
    
    
        
            System:
        
        
            Electronic ignition (CDI).
        
     
 
    
    
    
        
            Length:
        
        
            Specific dimensions available in the manual, typical for a 125cc enduro.
        
     
    
        
            Width:
        
        
            Specific dimensions available in the manual.
        
     
    
        
            Height:
        
        
            Specific dimensions available in the manual.
        
     
    
        
            Wheelbase:
        
        
            Specific dimensions available in the manual, typically around 1400-1450 mm.
        
     
    
    
        
            Dry Weight:
        
        
            Estimated 95-105 kg, highly dependent on exact configuration.
        
     
    
        
            Fuel Capacity:
        
        
            Approximately 9-11 liters.
        
     
 
    
    
    
        
            Crash Safety:
        
        
            N/A (Motorcycles are not rated by agencies like NHTSA in the same way as cars).
        
     
    
    
        
            Braking System:
        
        
            Hydraulic disc brakes front and rear.
        
     
    
        
            Lighting:
        
        
            Headlight, taillight, brake light, turn signals (depending on SM designation and market).
        
     
    
    
        
            Chassis Design:
        
        
            Robust frame designed for off-road durability.
        
     
 
    
    
    
        
            Oil Change:
        
        
            Detailed in manual, typically every few hundred kilometers or as per usage (e.g., 10-15 hours of off-road use).
        
     
    
        
            Air Filter Cleaning:
        
        
            Frequent cleaning/replacement recommended, especially for off-road use. Specified intervals in manual.
        
     
    
        
            Spark Plug Replacement:
        
        
            Intervals specified in manual, e.g., 2000-3000 km or based on condition.
        
     
    
        
            Chain Lubrication Adjustment:
        
        
            Regularly recommended, typically every 500-1000 km or after washing/off-road use.
        
     
    
    
        
            Engine Oil:
        
        
            2-stroke oil, specific API TC or JASO FD/FC rated oil as per manual. No crankcase oil as it's a premix.
        
     
    
        
            Coolant:
        
        
            Ethylene glycol-based antifreeze mixed with distilled water. Capacity and type detailed in manual.
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4 hydraulic fluid, depending on system specifications. Manual will specify.
        
     
    
        
            Transmission Oil:
        
        
            Gear oil (e.g., SAE 80W/90) for gearbox lubrication. Capacity and specification detailed in manual.
        
     
    
    
        
            Common Wear Items:
        
        
            Piston rings, cylinder bore wear, clutch plates, wheel bearings, suspension seals, carburetor jets clogging due to fuel quality.
        
     
    
    
        
            Electrical System:
        
        
            Potential for stator or rectifier failure, wiring harness degradation over time.
        
     
    
        
            Engine Performance:
        
        
            Carburetor tuning critical for optimal performance; incorrect jetting or air leaks can cause poor running.
        
     
 
    
    
    
        
            Legacy:
        
        
            Husqvarna Motorcycles has a long and storied history dating back to the early 20th century, with significant success in off-road racing.
        
     
    
    
        
            Wre Series:
        
        
            The WRE (WRE - often denoting 'World Rallycross Endurance' or similar) series represents Husqvarna's commitment to the enduro and dual-purpose market, building on their off-road expertise.
        
     
    
    
        
            Era:
        
        
            Late 1990s, a period of significant development in off-road motorcycle technology.
        
     
    
        
            Manufacturing Location:
        
        
            Sweden (original Husqvarna manufacturing) or potentially Italy during periods of ownership by Cagiva Group.