Category:
Performance Supermoto Motorcycle
Target Audience:
Enthusiasts, DIY mechanics, service technicians working on Husqvarna SM 125 models.
Competitors 1998:
KTM EXC, Yamaha WR, Suzuki DR-Z, Honda CR/XR (motocross/enduro variants often adapted).
Supermoto Focus:
Designed for on-road performance with supermoto styling, often derived from off-road platforms.
Comprehensiveness:
Covers all aspects of repair and maintenance, aiming to reduce reliance on external service centers.
Usability:
Well-organized with a table of contents for easy navigation.
Primary Coverage:
Service, Repair, Maintenance, Troubleshooting
Secondary Coverage:
Wiring Diagrams, Technical Specifications
Estimated Page Count:
N/A (Digital format, typical for extensive service manuals)
Type:
Factory Service Repair Manual
Engine:
Comprehensive coverage including disassembly, inspection, assembly, timing, lubrication, cooling.
Fuel System:
Carburetor tuning, fuel pump, fuel lines, fuel tank inspection and cleaning.
Ignition System:
CDI unit, spark plugs, ignition timing, stator and rotor inspection.
Transmission:
Gearbox disassembly, inspection, assembly, clutch operation and adjustment, shifting mechanism.
Chassis Suspension:
Front fork (USD forks) servicing, rear shock absorber inspection and adjustment, linkage maintenance.
Brakes:
Hydraulic brake system, caliper servicing, master cylinder repair, brake pad replacement, bleeding procedures.
Electrical System:
Wiring diagrams, lighting system, battery maintenance, charging system, starter motor operation.
Bodywork Frame:
Frame inspection, body panel removal and installation, seat, handlebars, footpegs.
Wheels Tires:
Wheel bearing inspection, spoke tension, tire replacement, balancing.
Maintenance:
Scheduled maintenance intervals, oil changes, filter replacements, chain adjustment, general lubrication.
Troubleshooting:
Diagnostic guides for common and uncommon issues, symptom-based troubleshooting charts.
Repair:
Step-by-step repair instructions for all major components and systems.
Disassembly Assembly:
Detailed procedures for taking apart and putting back together various vehicle parts.
Technical Specifications:
Torque values, clearances, fluid capacities, electrical specifications.
Wiring Diagrams:
Complete electrical system schematics for easy fault finding and component identification.
Depth:
Comprehensive (covers everything from basic maintenance to full engine rebuilds and advanced diagnostics).
Compatibility:
Compatible with all Windows and Mac operating systems.
Software Requirements:
Adobe PDF Reader and WinZip (for potential compression).
Quality:
High-resolution, suitable for printing individual pages or the entire manual.
Binding:
Digital Download (N/A for physical binding)
Paper:
N/A (Digital format)
Type:
Liquid-cooled, 2-stroke, single-cylinder
Displacement:
124.8 cc (approximate)
Bore X Stroke:
54 mm x 54.5 mm (typical for this engine family)
Power Output:
Approx. 16-20 HP (factory detuned for street use, higher in race trim)
Torque Output:
N/A (Specific figures vary, but typically strong low-mid range for its class)
Compression Ratio:
Typically around 8.0:1 to 8.5:1
Carburetor:
Dell'Orto PHBH 28 AS (common for this era and engine size)
Fuel Type:
Unleaded gasoline (minimum 95 RON recommended)
Fuel Mixture:
Pre-mix (1:30 or 1:40 ratio with high-quality 2-stroke oil, consult manual for exact spec)
Type:
Autolube (oil injection system)
Length:
N/A (Consult manual for precise figures, typically around 2000-2100 mm)
Width:
N/A (Consult manual, typically around 800-850 mm)
Height:
N/A (Consult manual, typically around 1100-1200 mm)
Dry Weight:
Approx. 95-105 kg (significant variation based on specific trim/options)
Wet Weight:
N/A (Consult manual)
Payload Capacity:
N/A (Motorcycle, rider weight is the primary consideration)
Crash Test:
N/A (Motorcycles are not subject to automotive crash testing standards)
Brakes:
Hydraulic disc brakes front and rear.
Suspension:
Upside-down (USD) front forks and adjustable rear monoshock for improved handling and stability.
Lighting:
Headlight, taillight, brake light, turn signals (as per street legal regulations).
Frame Construction:
Steel perimeter frame for rigidity and rider feedback.
System:
N/A (Basic motorcycle instrumentation: speedometer, tachometer, neutral indicator, high-beam indicator).
Features:
N/A (No electronic rider aids like ABS or traction control on this model).
Features:
N/A (No integrated connectivity features).
Oil Change:
Every 20-30 hours of riding or annually, depending on usage (consult manual).
Top End Rebuild:
Every 80-120 hours of riding (for optimal performance on a 2-stroke).
Spark Plug:
Inspect every 10-20 hours, replace as needed.
Engine Oil:
High-quality 2-stroke oil suitable for liquid-cooled engines (e.g., Motul 800 2T, Castrol TTS, specified by Husqvarna).
Coolant:
Ethylene glycol-based coolant with anti-corrosion additives (50/50 mix with distilled water recommended).
Brake Fluid:
DOT 4 hydraulic brake fluid.
Transmission Oil:
SAE 75W/90 or SAE 80W/90 gear oil (check manual for specific API GL rating).
2 Stroke Wear:
As with most 2-strokes, regular piston ring and cylinder wear is expected and requires monitoring/rebuilding.
Carburetor Tuning:
Can be sensitive to altitude and temperature changes, requiring occasional adjustments.
Cooling System Leaks:
Inspect hoses and radiator for potential leaks or damage.
Founding:
Husqvarna Motorcycles is one of the oldest motorcycle manufacturers in the world, founded in Sweden in 1903.
Sm Series:
The SM series represents Husqvarna's dedicated foray into the supermoto segment, often adapting their successful enduro platforms.
Era:
1990s and early 2000s were a period of strong growth and development for Husqvarna in the off-road and supermoto markets.
Manufacturing Location:
Primarily Sweden and later Italy under ownership changes.
