Category:
Light-duty scooter, urban mobility
Target Audience:
Commuters, younger riders, city dwellers seeking economical and practical transportation.
Competitors:
Honda PCX, Yamaha NMAX, Kymco Agility, SYM Fiddle, Vespa Primavera/Sprint (segment competitors in terms of utility and price point).
Design Philosophy:
Italian design heritage, practical maxi-scooter styling in a smaller package, focus on urban maneuverability and comfort.
Value Proposition:
Provides a comprehensive resource for maintaining and repairing the Aprilia Quasar 50 and 100, essential for owners looking to preserve the longevity and performance of their vehicle.
Engine Mechanical:
Engine disassembly, assembly, overhaul, timing, lubrication system, cooling system, fuel delivery, exhaust system, engine tuning, diagnostics.
Engine Electrical:
Ignition system, starting system, charging system, electronic control unit (ECU), sensors, wiring diagrams.
Transmission:
Automatic transmission (CVT) operation, maintenance, disassembly, assembly, final drive.
Chassis:
Frame inspection and repair, suspension system (front and rear), steering system, wheel alignment.
Braking System:
Brake system components (discs, calipers, pads, master cylinder, lines), hydraulic system bleeding, maintenance, troubleshooting.
Electrical System:
Lighting system (headlights, taillights, indicators), battery, charging system, starter motor, fuses, relays, horn, electrical component testing, comprehensive wiring diagrams.
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel injection system (if applicable), carburetor (if applicable), fuel lines.
Bodywork And Trim:
Body panel removal and installation, fairings, seat, handlebars, mirrors, interior trim.
Cooling System:
Radiator, coolant, fan, hoses, thermostat operation and replacement.
Exhaust System:
Muffler, pipes, catalytic converter (if applicable), mounting hardware.
Maintenance Procedures:
Oil changes, filter replacements, spark plug service, drive belt inspection/replacement, brake fluid changes, coolant flushes, general inspections.
Repair Procedures:
Complete engine rebuilds, transmission overhaul, suspension component replacement, brake caliper rebuild, electrical component diagnosis and replacement, body panel repair.
Troubleshooting Diagnostics:
Step-by-step diagnostic procedures for common and uncommon issues, fault code interpretation (if applicable).
Technical Data Specs:
Torque specifications for all fasteners, fluid capacities, clearances, engine timing procedures, electrical resistance values.
Wiring Diagrams:
Detailed and comprehensive electrical wiring schematics for all vehicle systems.
Depth:
Comprehensive A-Z coverage, suitable for professional mechanics and experienced DIY enthusiasts. Includes both routine maintenance and major overhaul procedures.
Engine Type:
Four-stroke, single-cylinder, liquid-cooled
Displacement 50:
Approximately 50cc (specific model may vary slightly)
Displacement 100:
Approximately 100cc (specific model may vary slightly)
Horsepower 50:
Typically in the range of 3-5 HP (varies by specific model and tuning)
Horsepower 100:
Typically in the range of 6-8 HP (varies by specific model and tuning)
Torque:
Torque figures specific to each engine variant, detailed in the manual.
Fuel Delivery:
Fuel Injection (EFI) or Carbureted, depending on the specific model year and variant. Manual will detail applicable system.
Ignition System:
Electronic Ignition (CDI or ECU controlled)
Lubrication Type:
Wet sump, forced circulation (details on oil type and capacity in manual).
Cooling System:
Liquid-cooled
Wheelbase:
Dimensions vary by specific model variant, detailed in the manual.
Length:
Dimensions vary by specific model variant, detailed in the manual.
Width:
Dimensions vary by specific model variant, detailed in the manual.
Height:
Dimensions vary by specific model variant, detailed in the manual.
Dry Weight:
Approximate dry weight around 110-125 kg (varies by model and engine size, refer to manual for exact figures).
Curb Weight:
Approximate curb weight around 120-135 kg (varies by model and engine size, refer to manual for exact figures).
Max Load Capacity:
Refer to manual for specific load capacity and Gross Vehicle Weight Rating (GVWR).
Front Tire Size:
Commonly 110/90-13 or similar, refer to manual for exact specification.
Rear Tire Size:
Commonly 130/70-13 or similar, refer to manual for exact specification.
Wheel Bolt Pattern:
N/A (Scooter, typically fixed hub)
Instrument Panel:
Analog/digital combination instrument cluster displaying speed, RPM, fuel level, odometer, trip meter, and indicator lights.
ABS:
Anti-lock Braking System (ABS) was an optional feature on some later models or specific market variants. Manual will clarify presence and operation.
Charging Port:
Some models may feature a 12V power outlet or USB charging port under the seat for accessory charging.
Headlight Type:
Typically halogen, though later models may have adopted LED lighting for certain elements.
Engine Oil Change:
Typically every 3,000-5,000 km or annually, refer to manual for exact mileage and time interval.
Air Filter Inspection:
Inspect every 3,000 km, replace as needed.
Spark Plug Replacement:
Typically every 6,000-10,000 km, refer to manual for specific plug type and gap.
Drive Belt Inspection:
Inspect every 6,000 km, recommended replacement between 12,000-20,000 km. Refer to manual for exact interval and inspection procedure.
Brake Fluid Change:
Typically every 2 years or as recommended by manufacturer, refer to manual for specific interval and fluid type (e.g., DOT 4).
Engine Oil Type Capacity:
Refer to manual for specific API/JASO rating (e.g., API SG or higher, JASO MA) and capacity (likely around 0.8-1.0 liters).
Coolant Type:
Ethylene glycol-based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water. Refer to manual for specific type and capacity.
Common Wear Items:
Drive belt, rollers, brake pads, tires, and suspension bushings are common wear items on scooters of this age and type. Electrical connections can also be a point of concern if not maintained.
Potential Failures:
Water pump seal leaks, stator coil failures, and exhaust system corrosion can occur over time and are typically covered in troubleshooting sections.
Aprilia Heritage:
Aprilia is an Italian manufacturer known for its performance-oriented motorcycles and scooters, with a strong racing pedigree.
Quasar Introduction:
The Quasar line was introduced to offer a more practical and comfortable maxi-scooter experience within Aprilia's lineup, blending sporty handling with urban utility.
Key Innovations:
The Quasar platform aimed to provide a stable ride, under-seat storage, and a more aerodynamic body than smaller scooters, making it suitable for longer commutes.
Manufacturing Location:
Primarily manufactured in Italy by Aprilia.
