Segment:
Lightweight scooter, urban commuter
Key Competitors:
Honda Dio, Yamaha Jog, Suzuki Address, Kymco Agility (relative to its era and class)
Vehicle Appeal:
Designed for economical urban transportation, ease of use, and maneuverability
Manual Value Proposition:
Provides owners and technicians with the authoritative information needed to maintain and repair the SD50 Sense effectively, reducing reliance on expensive dealership services.
Powertrain:
Engine overhaul, transmission service, clutch operation, drive train components
Chassis:
Suspension systems (front and rear), steering mechanisms, braking system diagnostics and repair, wheel and tire service
Electrical:
Ignition system, charging system, starting system, lighting circuits, instrumentation, wiring diagrams, diagnostic procedures for electrical faults
Body And Frame:
Body panel removal and installation, interior trim, seat adjustments, accessory fitting, frame integrity checks
Fuel And Exhaust:
Fuel delivery system, carburetor/fuel injection service, exhaust system maintenance and repair
Cooling System:
Radiator, cooling fan, thermostat, coolant flow, leak detection
Lubrication System:
Oil pump, oil filter, lubrication passages, oil change procedures
Maintenance Tasks:
Scheduled maintenance checks, fluid level checks and top-offs, filter replacement, spark plug service, battery maintenance
Diagnostic Procedures:
Troubleshooting guides for common and uncommon faults, symptom-based diagnostics, testing of electrical components and mechanical systems
Repair Procedures:
Step-by-step instructions for component disassembly, repair, reassembly, and adjustment, including torque specifications
Rebuilding Procedures:
Comprehensive guides for engine rebuilds, transmission overhauls, and major component refurbishment
Performance Tuning:
Potential for basic performance adjustments where applicable
Depth:
Comprehensive, covering from basic routine maintenance to complex engine and transmission rebuilds
Diagnostic Capability:
Advanced diagnostic trees and troubleshooting flowcharts
Rebuild Level:
Full rebuild specifications for major mechanical components
Compatibility:
Compatible with all PDF readers on PC, Mac, tablets, and smartphones
Resolution:
High-resolution scans for clear text and diagrams
Searchability:
Fully searchable text for quick information retrieval
Engine Type:
Air-cooled, four-stroke, single-cylinder
Bore X Stroke:
39.0 mm x 41.4 mm (typical for this displacement range)
Horsepower:
Approximately 3.0 - 3.5 PS (at specified RPM, exact figures dependent on specific model year and tuning)
Torque:
Approximately 3.0 - 3.5 Nm (at specified RPM, exact figures dependent on specific model year and tuning)
Fuel Delivery:
Carburetor (specific model may vary, e.g., Mikuni VM series)
Fuel Type:
Unleaded Gasoline
Ignition Type:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Forced Air Cooling (via fan)
Crash Test Results:
N/A (Scooters typically not subject to the same crash testing as cars)
Braking System:
Front: Disc brake; Rear: Drum brake (typical configuration)
Tires:
Tubeless tires, front: 100/90-10, rear: 100/90-10 (typical sizes, refer to manual for exact specifications)
Lighting:
Headlight, taillight, turn signals, brake lights
Instrument Cluster:
Analog speedometer, odometer, fuel gauge (typical), indicator lights for turn signals, high beam, etc.
Assistance Systems:
None (basic commuter scooter)
Connectivity Options:
None
Oil Change Interval:
Every 2,000 - 3,000 km or 6 months, whichever comes first (typical for this class, refer to manual for precise interval)
Air Filter Cleaning Replacement:
Inspect every 1,000 km, clean/replace as needed, typically every 4,000 - 6,000 km
Spark Plug Replacement:
Every 6,000 - 10,000 km (dependent on spark plug type)
Cvt Belt Inspection Replacement:
Inspect every 6,000 km, replace typically around 15,000 - 20,000 km or when worn
Engine Oil Type:
SAE 10W-40 API SG or higher (or 10W-30)
Engine Oil Capacity:
Approx. 0.8 - 0.9 Liters (refer to manual for exact capacity)
Brake Fluid Type:
DOT 3 or DOT 4 (refer to manual for specific recommendation)
Coolant Type:
N/A (Air-cooled engine)
Common Wear Items:
CVT belt wear, battery degradation, spark plug fouling, carburetor adjustments due to fuel quality variations.
Electrical Gremlins:
Potential for wiring harness issues or connector corrosion, especially in humid climates.
Carburetor Tuning:
May require periodic cleaning and adjustment for optimal performance and fuel efficiency, especially with ethanol fuels.
Manufacturer:
Hyosung (South Korea)
Industry Focus:
Known for motorcycles, scooters, and engines
Development Context:
Part of Hyosung's range of accessible and economical urban mobility solutions.
Production Period:
Commenced around 1999, with ongoing production or variations under different markets
