Vehicle Segment:
Performance Off-Road Motorcycle (Enduro/Motocross focus)
Key Competitors:
KTM 125 EXC/SX, Yamaha YZ125, Honda CR125R, Suzuki RM125, Kawasaki KX125.
Vehicle Appeal:
Known for powerful two-stroke engines, agile handling, and robust off-road capability. Targeted at enthusiasts seeking a competitive and engaging riding experience.
Manual Value Proposition:
Provides essential technical data, repair procedures, and troubleshooting guidance to maintain and restore these performance-oriented machines, enabling DIY servicing and cost savings.
Engine Systems:
Engine disassembly/reassembly, top-end (cylinder, piston, rings, head), bottom-end (crankshaft, connecting rod, bearings), lubrication system, cooling system (if applicable), intake and exhaust systems.
Transmission And Drivetrain:
Gearbox overhaul, clutch operation and service, chain and sprocket maintenance, lubrication.
Chassis And Suspension:
Front fork service and overhaul, rear shock absorber and linkage service, swingarm maintenance, wheel bearing service, steering head bearing service.
Brakes:
Hydraulic brake system maintenance (master cylinders, calipers, brake lines), brake pad replacement, brake bleeding procedures, rotor inspection.
Electrical System:
Ignition system, lighting (if applicable), wiring diagrams, component testing, troubleshooting.
Fuel System:
Carburetor identification, disassembly, cleaning, adjustment, jetting information, fuel tank and petcock service.
Cooling System:
Radiator service, coolant checks, water pump maintenance (if equipped).
Bodywork And Frame:
Frame inspection, plastic panel removal/installation, seat, fuel tank mounting.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, chain adjustment, brake checks, spark plug replacement, general inspections.
Repair:
Component-level repairs, troubleshooting guides for common issues, detailed step-by-step repair instructions for all major systems.
Troubleshooting:
Diagnostic procedures for performance issues, starting problems, electrical faults, and mechanical failures.
Overhaul:
Complete engine rebuild procedures, gearbox rebuilds, suspension unit overhauls.
Adjustments:
Carburetor tuning, clutch lever adjustment, brake lever adjustment, chain slack adjustment, suspension sag adjustments.
Depth Of Coverage:
Complete from basic maintenance to full engine rebuilds and troubleshooting. Suitable for home mechanics and professional technicians alike.
Diagnostic Capabilities:
Includes specific diagnostic flowcharts and troubleshooting tips for common problems, leveraging factory knowledge.
Rebuild Procedures:
Detailed, sequential instructions for dismantling and reassembling complex components with torque specifications and critical tolerances.
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Bore X Stroke:
54 mm x 54.5 mm (typical for this era, refer to manual for exact)
Compression Ratio:
Approximately 8.8:1 to 9.2:1 (subject to specific model year/tuning, refer to manual)
Horsepower:
Estimated 30-35 HP at peak (subject to model year and tuning, refer to manual)
Torque:
Estimated 20-23 Nm at peak (subject to model year and tuning, refer to manual)
Carburetor Type:
Mikuni VM Series (e.g., VM28 or similar)
Fuel Type:
Unleaded gasoline with 2-stroke oil premix (typically 30:1 to 50:1 ratio, refer to manual for precise ratio)
Lubrication System:
Premix or Autolube system (verify which system the specific model utilizes from the manual)
Wheelbase:
Approximately 1460 mm (57.5 inches), refer to manual for exact
Ground Clearance:
Approximately 340 mm (13.4 inches), refer to manual for exact
Dry Weight:
Approximately 98 kg (216 lbs), refer to manual for exact
Fuel Capacity:
Approximately 8 liters (2.1 US gallons), refer to manual for exact
Oil Change Interval:
Engine oil (gearbox oil) inspection/change typically every 10-15 hours of riding or as specified in the manual.
Top End Rebuild:
Piston and ring replacement typically recommended every 30-50 hours of hard use, or based on compression testing.
Chain Maintenance:
Regular cleaning, lubrication, and tension adjustment (every few rides).
Gearbox Oil Type:
GL-4 or GL-5 80W/90 gear oil (verify specific viscosity and type in the manual).
Coolant Type:
Ethylene glycol based coolant mixed with distilled water (50/50 ratio is typical, refer to manual for exact specification).
Common Wear Items:
Clutch plates, piston rings, spark plugs, wheel bearings, steering head bearings, swingarm bearings are common wear items on performance off-road bikes.
Carburetor Tuning:
Proper carburetor jetting and adjustment are crucial for optimal performance and can be sensitive to altitude and temperature changes.
Brand Origins:
Husqvarna Motorcycles is one of the oldest motorcycle manufacturers, founded in Sweden in 1903.
Two Stroke Legacy:
Husqvarna has a long and successful history in off-road racing, particularly with its potent two-stroke models, including the WR and CR series.
Manufacturing Period:
Models covered are from the early 2000s, representing a period of refinement in Husqvarna's off-road platform before significant platform changes.
