Segment:
Lightweight Supermoto/Off-Road Motorcycle
Target Audience:
Enthusiasts and owners seeking to perform their own maintenance and repairs
Competitors:
Other 125cc off-road or supermoto models from brands like KTM, Aprilia, Yamaha, Honda, Suzuki
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.
Primary Coverage:
Comprehensive service, repair, and maintenance
Secondary Coverage:
Troubleshooting, electrical diagnostics, wiring diagrams
Estimated Page Count:
Varies by specific manual, typically 300-600 pages for comprehensive coverage
Type:
Service Manual / Repair Manual / Workshop Manual
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
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
Depth:
Covers from basic user maintenance to in-depth engine rebuilds and electrical diagnostics
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)
Quality:
High-resolution scans suitable for printing
Type:
N/A (Digital Download - PDF)
Type:
N/A (Digital Download - PDF)
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)
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)
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)
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
Dry Weight:
Approximately 95-105 kg (refer to manual for exact specification)
Fuel Tank Capacity:
Approximately 8-10 liters
Crash Test Ratings:
N/A (Motorcycles are not typically rated by consumer safety organizations like NHTSA or Euro NCAP)
Braking System:
Front: Disc brake (single or dual, depending on specific variant), Rear: Disc brake
Lighting:
Headlight, tail light, brake light, turn signals (if equipped)
Frame Construction:
Steel perimeter frame for rigidity and durability
System:
Basic analog instrumentation: speedometer, tachometer, odometer, and indicator lights. No advanced infotainment.
Features:
No electronic driver assistance systems typical of modern vehicles. Focus on rider control and mechanical feedback.
Features:
No electronic connectivity features.
Oil Change:
Every 20-30 hours of operation or annually. Refer to manual for specific mileage/time.
Air Filter Cleaning:
Every 10-15 hours of operation or as needed, depending on riding conditions.
Spark Plug Replacement:
Every 50-100 hours of operation (refer to manual for specific type and gap).
Chain Lubrication Adjustment:
Every 500-1000 km or more frequently in wet/dirty conditions.
Top End Rebuild:
Typically recommended every 100-200 hours of operation for a two-stroke engine, depending on riding style.
Engine Oil:
Not applicable for premix two-stroke; refer to manual for recommended 2-stroke oil for premix.
Transmission Oil:
SAE 10W-30 or SAE 10W-40 API SG or higher
Coolant:
Ethylene glycol based coolant with anti-corrosion additives (50/50 mix with distilled water recommended)
Brake Fluid:
DOT 4 or DOT 5.1 brake fluid (refer to manual for specific type)
Common Issue 1:
Carburetor jetting can require adjustment depending on altitude, temperature, and exhaust modifications.
Common Issue 2:
Two-stroke engines require regular maintenance, including piston ring and top-end inspection.
Common Issue 3:
Clutch wear can occur with aggressive riding or improper usage.
Common Issue 4:
Chain and sprockets require regular inspection and replacement to prevent damage to the drivetrain.
Origin:
Husqvarna Motorcycles is a Swedish brand with a long history dating back to 1903, known for its off-road prowess.
Lineage:
The SM 125 is part of Husqvarna's lineage of lightweight, agile supermoto and motocross-inspired models, built for performance and agility on various terrains.
Manufacturing Period:
The SM 125 model was produced through the late 1990s and early 2000s.
