Market Position:
The Husqvarna WRE 125 SM was a popular supermoto-styled off-road motorcycle, appealing to riders seeking a versatile machine for both on-road and light off-road use, often favored by younger riders or those looking for an accessible entry into the supermoto segment.
Competitive Analysis:
Competed against other 125cc two-stroke supermotos and enduro bikes adapted for street use from manufacturers like KTM, Yamaha (DT series), and Aprilia.
Key Features:
Lightweight chassis, potent 125cc two-stroke engine, long-travel suspension adapted for supermoto use, capable braking system, and a distinctive streetfighter aesthetic.
Manual Value Proposition:
Enables owners to perform a wide range of maintenance and repair tasks, saving money on labor costs and empowering them to understand and maintain their motorcycle effectively. The step-by-step instructions and visual aids make complex procedures more accessible.
Coverage Areas:
All areas of repair, routine maintenance, electrical systems, wiring diagrams, engine, chassis, suspension, brakes, bodywork, and troubleshooting.
Page Count:
Not explicitly stated, but described as 'full professional quality in depth' and 'complete'.
Manual Type:
WSM Service Manual, Repair Manual
Engine:
Detailed engine overhaul, including cylinder, piston, crankshaft, connecting rod, bearings, seals, and cooling system (if applicable). Carburetor adjustment and repair. Exhaust system.
Transmission:
Gearbox inspection, maintenance, and repair. Clutch assembly, operation, and adjustment. Shift mechanism.
Electrical:
Wiring diagrams for all circuits, ignition system, lighting, charging system, starter motor (if applicable), switches, and controls.
Brakes:
Front and rear brake system servicing, including hydraulic components, pads, discs, and bleeding procedures. Master cylinder and caliper overhaul.
Suspension:
Front fork servicing, including oil changes, seal replacement, and spring inspection. Rear shock absorber maintenance and adjustment.
Chassis And Bodywork:
Frame inspection, steering head bearing maintenance, wheel and tire service, chain and sprocket maintenance, body panel removal and installation, seat, handlebars, and footpegs.
Maintenance:
Routine maintenance tasks such as oil changes, filter replacement, chain lubrication, spark plug inspection, air filter cleaning/replacement, and general inspections.
Troubleshooting:
Diagnostic procedures for common problems and faults, including symptom-based troubleshooting guides.
Repair:
Step-by-step repair instructions for all major and minor components of the motorcycle.
Diagnostics:
Identification of potential issues through visual inspection and systematic checks.
Assembly Disassembly:
Detailed instructions for safely disassembling and reassembling all motorcycle systems.
Technical Depth:
Comprehensive, from basic adjustments to complete engine rebuilds and electrical system diagnostics. Includes detailed torque specifications and clearances.
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Bore X Stroke:
Typically around 54 mm x 54.5 mm for 125cc Rotax engines of this era. Specific figures may vary slightly.
Compression Ratio:
Likely in the range of 8.0:1 to 9.5:1, depending on specific tuning. The manual would provide the exact specification.
Horsepower:
Estimates vary, but typically in the range of 25-35 hp for a 125cc two-stroke enduro/supermoto in this period. The manual would provide the official figure.
Torque:
Specific torque figures are not provided, but generally characterized by strong mid-range power delivery typical of two-stroke engines. The manual would detail this.
Carburetor:
Likely a Mikuni TM-series carburetor, such as a 34mm or 36mm. The manual will specify the exact model and jetting.
Fuel Type:
Unleaded gasoline, typically with a minimum octane rating of 95 RON. Requires 2-stroke oil pre-mix.
Oil Mixture:
Pre-mix ratio, likely 1:30 or 1:40 (fuel to oil), with a high-quality 2-stroke oil. The manual will specify the correct ratio and oil type.
Cooling System:
Liquid-cooled with a radiator and fan (if equipped). Manual will detail coolant type and capacity.
Transmission Type:
6-speed manual transmission
Clutch Type:
Wet, multi-plate clutch
Gear Ratios:
Specific gear ratios are not provided, but the manual will detail each ratio for optimal performance.
Final Drive:
Chain drive. The manual will provide specifications for chain slack and lubrication.
Clutch Adjustment:
The manual will detail lever free play adjustment and cable maintenance.
Length:
Not provided in product information, but typical for a 125cc supermoto.
Width:
Not provided in product information.
Height:
Not provided in product information.
Dry Weight:
Likely around 100-110 kg dry. The manual will provide the exact figure.
Fuel Capacity:
Likely around 8-10 liters. The manual will specify the tank capacity.
Wheelbase:
Not provided, but typically in the range of 1350-1450 mm for this class.
Safety Ratings:
Motorcycle safety is typically assessed through rider skill and adherence to road laws. The manual provides information crucial for safe operation and maintenance.
Brakes:
Disc brakes front and rear for effective stopping power.
Tires:
Street-oriented tires for grip on paved surfaces. Manual provides tire pressure specifications.
Lighting:
Headlight, taillight, brake lights, and turn signals for visibility.
Ergonomics:
Handlebar and seating position designed for control and rider comfort.
Oil Change:
The manual will specify intervals for engine oil changes (if applicable, depending on gearbox oil type) and chain lubrication. Typical for a 2-stroke would be more frequent chain checks and lubrication.
Spark Plug Inspection:
Regular inspection and cleaning/replacement of the spark plug. The manual will recommend intervals and the correct spark plug part number.
Air Filter Maintenance:
Cleaning or replacement of the air filter at recommended intervals, especially crucial for 2-stroke engines. The manual will provide specifications.
Brake Pad Inspection:
Regular inspection of brake pad wear. The manual will provide wear limits and part numbers.
Engine Oil:
Specific 2-stroke engine oil type and pre-mix ratio would be detailed in the manual. High-quality JASO FD or API TC rated oil is recommended.
Coolant:
If liquid-cooled, the manual will specify coolant type and mixture ratio (e.g., 50/50 ethylene glycol and distilled water).
Brake Fluid:
DOT 3 or DOT 4 brake fluid is typically used. The manual will specify the correct type and replacement interval.
Known Issues:
Common issues for 125cc two-strokes of this era can include carbon buildup in the exhaust and cylinder, carburetor jetting sensitivity, and wear on the clutch and transmission components due to aggressive riding. The manual provides solutions and preventative maintenance.
Brand Heritage:
Husqvarna Motorcycles has a long and rich history, originating in Sweden in 1903. It is renowned for its off-road prowess, particularly in motocross and enduro racing, before expanding into street-legal models like the WRE series.
Model Evolution:
The WRE 125 SM represents Husqvarna's venture into the supermoto segment, adapting their off-road chassis and engines for street use with larger wheels, different suspension tuning, and road tires. This model year (1998) falls within a period where Husqvarna was developing its dual-sport and supermoto offerings.
Production Period:
1990s to early 2000s for the 125cc WRE series. Specific production numbers are not readily available.
