Segment:
        
        
            Lightweight sport motorcycle, popular for urban commuting and entry-level performance riding.
        
     
    
        
            Target Audience:
        
        
            New riders, commuters, enthusiasts seeking an agile and economical two-wheeler.
        
     
    
    
        
            Key Competitors:
        
        
            Aprilia RS 125, Yamaha DT 125, Honda CRM 125, Suzuki RM 125 (depending on year and market).
        
     
    
    
        
            Design Philosophy:
        
        
            Emphasizes a sporty, agile streetfighter aesthetic with performance-oriented components for its class.
        
     
    
        
            Handling Characteristics:
        
        
            Lightweight chassis and responsive suspension contribute to nimble handling in urban environments.
        
     
 
    
    
    
        
            Engine Systems:
        
        
            Engine assembly, disassembly, tuning, lubrication, cooling system, valve timing, piston/ring inspection, cylinder head servicing, crankshaft and connecting rod service, gearbox integration.
        
     
    
        
            Fuel System:
        
        
            Carburetor identification, adjustment, cleaning, and overhaul; fuel tank, fuel pump (if applicable), fuel lines, and filter maintenance.
        
     
    
        
            Ignition System:
        
        
            Spark plug specifications, ignition timing, CDI unit, stator, rotor, and wiring diagnostics.
        
     
    
        
            Transmission System:
        
        
            Clutch operation, adjustment, and replacement; gearbox disassembly, inspection, lubrication, and reassembly; shift mechanism.
        
     
    
        
            Chassis And Suspension:
        
        
            Front fork (telescopic) servicing, seals, oil changes, damping adjustments; rear shock absorber maintenance and adjustment; swingarm inspection and lubrication; steering head bearing service.
        
     
    
        
            Braking System:
        
        
            Front and rear brake caliper service, pad replacement, fluid bleeding and replacement (DOT standard), master cylinder overhaul, brake line inspection.
        
     
    
        
            Electrical System:
        
        
            Wiring diagrams, battery maintenance, lighting circuits (headlight, taillight, indicators), horn, starter motor, charging system (alternator/stator), fuses, relays, instrument cluster diagnostics.
        
     
    
        
            Bodywork And Frame:
        
        
            Frame inspection, fairing and body panel removal/installation, seat assembly, fuel tank mounting, exhaust system removal/installation, graphics and trim.
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil changes, filter replacements, chain adjustment and lubrication, spark plug checks, brake fluid flushes, tire pressure checks, air filter cleaning/replacement.
        
     
    
        
            Diagnostic Procedures:
        
        
            Troubleshooting guides for common starting issues, running problems, electrical faults, and braking system irregularities.
        
     
    
        
            Major Repairs:
        
        
            Engine rebuilds, gearbox overhauls, suspension fork rebuilds, brake caliper overhauls, electrical component replacement.
        
     
    
        
            Technical Adjustments:
        
        
            Carburetor jetting and idle speed adjustment, ignition timing verification, clutch cable adjustment, suspension preload and damping settings.
        
     
    
        
            Component Replacement:
        
        
            Step-by-step instructions for replacing parts such as brake pads, clutches, cables, bulbs, batteries, and wear items.
        
     
    
    
        
            Diagnostic Capability:
        
        
            Advanced diagnostics for engine performance issues, electrical system faults, and mechanical wear using specified measurement tools.
        
     
    
        
            Rebuild Capability:
        
        
            Comprehensive engine and gearbox rebuild procedures with torque specifications, clearances, and part tolerances.
        
     
    
        
            Troubleshooting Methodology:
        
        
            Systematic troubleshooting trees and symptom-based diagnostic flows.
        
     
 
    
    
    
        
            File Type:
        
        
            PDF (Portable Document Format)
        
     
    
        
            Searchability:
        
        
            Full text search enabled for keywords and component names.
        
     
    
        
            Printability:
        
        
            Printable on demand, allowing for focused printing of specific sections.
        
     
    
    
        
            Resolution:
        
        
            High-resolution scans and digital typesetting ensuring clarity of diagrams and text.
        
     
    
    
        
            Physical Format Description:
        
        
            Not applicable for digital PDF, but implies professional layout for potential printing.
        
     
    
    
        
            Physical Format Description:
        
        
            Not applicable for digital PDF, but original manuals often used durable, matte finish paper.
        
     
 
    
    
    
        
            Type:
        
        
            Liquid-cooled, 2-stroke, single-cylinder
        
     
    
        
            Displacement:
        
        
            124.8 cc (approx.)
        
     
    
        
            Bore X Stroke:
        
        
            56 mm x 50.6 mm (typical for M2 engine)
        
     
    
        
            Compression Ratio:
        
        
            7.4:1 (approx.)
        
     
    
        
            Power Output:
        
        
            11 kW (15 hp) @ 7,500 rpm (typical for European A1 license regulations), some versions may be de-restricted.
        
     
    
        
            Torque Output:
        
        
            13.5 Nm @ 7,000 rpm (typical)
        
     
    
        
            Reed Valve Induction:
        
        
            Yes, typically rotary disc valve or reed block induction.
        
     
    
    
        
            Carburetor Type:
        
        
            Dell'Orto PHBH 28 AS or similar (28mm slide carburetor)
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline, minimum 95 RON (Octane Rating)
        
     
    
        
            Oil Mixture:
        
        
            Pre-mix or automatic oil injection system (check specific model year).
        
     
    
    
        
            System:
        
        
            Petter oil injection system or manual pre-mix
        
     
    
        
            Engine Oil Type:
        
        
            2-stroke engine oil meeting API TC, JASO FD, or ISO-L-EGD standards.
        
     
 
    
    
    
        
            Crash Test Data:
        
        
            Not applicable for this type of motorcycle; safety is based on design, handling, and braking capabilities.
        
     
    
    
        
            Braking System:
        
        
            Hydraulic disc brakes front and rear for effective stopping power.
        
     
    
        
            Suspension Design:
        
        
            Telescopic front forks and monoshock rear suspension for stability and control.
        
     
    
    
        
            Lighting:
        
        
            Full lighting system including headlight, taillight, brake light, and turn signals.
        
     
    
        
            Frame Construction:
        
        
            Steel perimeter frame offering rigidity and durability.
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Every 2,000-3,000 km or annually, depending on usage (refer to manual for precise intervals).
        
     
    
        
            Air Filter Cleaning:
        
        
            Every 1,000-2,000 km or as needed based on operating conditions (dusty environments require more frequent checks).
        
     
    
        
            Spark Plug Check:
        
        
            Every 2,000-4,000 km, replace as needed.
        
     
    
        
            Chain Lubrication:
        
        
            Every 500 km and after riding in rain or washing.
        
     
    
        
            Brake Fluid Replacement:
        
        
            Every 2 years or as recommended by manufacturer.
        
     
    
    
        
            Engine Oil:
        
        
            2-stroke, API TC, JASO FD/FD approved, 100% synthetic or semi-synthetic recommended.
        
     
    
        
            Transmission Oil:
        
        
            Not applicable for 2-stroke; gearbox lubrication is via separate oil in some designs, check manual. If applicable, SAE 80W-90 gear oil.
        
     
    
        
            Brake Fluid:
        
        
            DOT 4 hydraulic brake fluid.
        
     
    
        
            Coolant:
        
        
            Ethylene glycol based coolant mixture with distilled water (50/50 ratio), or specific motorcycle coolant.
        
     
    
    
        
            Carburetor Tuning:
        
        
            Can be sensitive to altitude and temperature changes, requiring periodic adjustment for optimal performance and fuel economy.
        
     
    
        
            Exhaust Port Fouling:
        
        
            Common in 2-stroke engines, requires periodic cleaning of exhaust ports and power valve (if equipped).
        
     
    
        
            Clutch Wear:
        
        
            Clutch plates can wear over time, especially with aggressive riding, leading to slipping.
        
     
    
        
            Electrical Connections:
        
        
            Corrosion or loose connections in wiring harnesses can cause intermittent electrical issues.