Vehicle Segment:
Lightweight Cruiser Motorcycle (125cc class)
Target Audience:
Beginner riders, commuters, enthusiasts seeking a stylish and affordable cruiser experience.
Competitors:
Honda Rebel 125, Suzuki Marauder 125, Yamaha Virago 125 (historically), Keeway K-Light 125.
Styling:
Classic American V-twin cruiser aesthetics, chrome accents, teardrop fuel tank, comfortable rider triangle.
Engine Type:
V-twin, air-cooled (typically SOHC)
Performance Focus:
Torque-rich low-end power delivery, suitable for relaxed cruising.
Benefit To Owner:
Empowers owners to perform routine maintenance, troubleshoot issues, and undertake repairs, saving time and money.
Benefit To Technician:
Provides definitive factory-level procedures for efficient and accurate servicing.
Engine Mechanical:
Full engine disassembly, inspection, overhaul, and reassembly procedures for the V-twin engine.
Engine Electrical:
Ignition system, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), lighting, and wiring diagrams.
Fuel System:
Carburetor (likely Mikuni BS30 or similar dual carburetors) tuning, cleaning, and repair; fuel tank, fuel lines, and petcock service.
Transmission Drivetrain:
Clutch operation, gear shifting mechanisms, drive chain adjustment and replacement, internal transmission component inspection.
Chassis Frame:
Frame inspection, welding points, steering head bearing maintenance and replacement.
Suspension:
Front telescopic fork servicing (oil change, seal replacement), rear shock absorber adjustment and replacement.
Brakes:
Front and rear brake system maintenance, including hydraulic fluid replacement, caliper service, pad replacement, and disc inspection.
Wheels Tires:
Wheel bearing inspection and replacement, tire pressure recommendations, and wheel balancing procedures.
Electrical Components:
Battery maintenance, fuse box layout, switchgear operation, and indicator light troubleshooting.
Bodywork Trim:
Fender removal/installation, seat adjustment, fuel tank mounting, and cosmetic component care.
Preventative Maintenance:
Scheduled maintenance intervals for oil changes, filter replacements, chain lubrication, brake checks, and general inspections.
Troubleshooting:
Diagnostic procedures for common performance issues, electrical faults, and starting problems with fault code identification (if applicable).
Repair Overhaul:
Step-by-step instructions for engine rebuilds, transmission overhauls, suspension component replacement, and brake system repairs.
Adjustments:
Carburetor synchronization, clutch cable adjustment, throttle cable adjustment, and idle speed setting.
Lubrication:
Specific lubrication points and recommended lubricants for various components.
Wiring Diagrams:
Detailed, color-coded electrical wiring schematics for comprehensive diagnostic and repair.
Depth Level:
Comprehensive: Covers basic maintenance to full engine and transmission rebuilds, including diagnostics.
Diagnostic Focus:
Detailed troubleshooting trees and symptom-based diagnosis for common issues.
Specification Detail:
Includes torque specifications, clearances, fluid capacities, and electrical resistance values.
Engine Type:
4-stroke, V-twin, air-cooled, SOHC
Bore X Stroke:
Approx. 49.0 mm x 66.0 mm (typical for this displacement V-twin)
Compression Ratio:
Typically around 9.0:1 to 10.0:1
Valve Configuration:
SOHC, 2 valves per cylinder (typical)
Horsepower:
Approx. 11-13 HP @ 9000-10000 RPM (governed by licensing)
Torque:
Approx. 9-10 Nm @ 7000-8000 RPM
Carburetion:
Dual Carburetors (likely Mikuni BS30 or similar) or EFI on later models.
Fuel Type:
Unleaded Gasoline (91-95 RON)
Oil Type:
SAE 10W-40 Motorcycle Oil (API SG or higher, JASO MA certified)
Ignition System:
CDI (Capacitor Discharge Ignition)
Crash Safety:
N/A (Motorcycles are not rated by NCAP or similar automotive bodies)
Braking System:
Front Disc Brake, Rear Drum Brake (or dual discs on some variants). ABS not typically standard on this model.
Lighting:
Halogen Headlight, LED Tail Light, Incandescent Turn Signals.
Frame Design:
Steel double cradle frame for stability.
Ergonomics:
Low seat height and forward-mounted footpegs contribute to rider confidence and control.
Infotainment System:
N/A (Basic motorcycle instrumentation)
ABS:
Not typically equipped as standard on this model; check specific year/variant.
Dashboard:
Analog speedometer, tachometer (optional), odometer, trip meter, indicator lights (turn signals, high beam, neutral).
Engine Oil Change:
Every 3,000 - 5,000 km or 6 months, whichever comes first.
Oil Filter Replacement:
Recommended at every oil change or every other oil change (refer to manual).
Air Filter Cleaning Replacement:
Inspect every 5,000 km, clean/replace as needed. Replacement typically every 10,000-15,000 km.
Spark Plug Replacement:
Every 10,000 - 15,000 km, depending on plug type.
Brake Fluid Flush:
Every 12-24 months.
Chain Lubrication Adjustment:
Every 500 - 1,000 km and after washing/rain.
Engine Oil Viscosity:
SAE 10W-40
Engine Oil Standard:
API SG or higher, JASO MA certified
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid
Fork Oil Type:
SAE 10W or equivalent suspension fluid (refer to manual for exact spec and quantity)
Common Complaints:
Potential for carburetor tuning sensitivity, occasional electrical connection issues, rear brake wear (drum).
Wear Items:
Clutch plates, brake pads/shoes, tires, chain and sprockets.
Carburetor Sync:
Crucial for smooth V-twin operation; detailed sync procedure in manual.
Manufacturer:
Hyosung Motors (South Korea), now part of KR Motors.
Introduction Year:
Launched in the early 2000s, with various updates throughout its production run.
Key Updates:
Potential updates to emissions, styling, braking systems, and fuel delivery (carburetor to EFI).
Manufacturing Location:
South Korea
Production Status:
Production ongoing, though specific model availability may vary by region.