Segment:
Lightweight sportbike segment, popular for entry-level riders and urban commuting.
Target Audience:
Young riders, enthusiasts seeking an affordable and engaging riding experience.
Key Competitors:
Derbi Senda, Gilera SMT, Yamaha DT50, Honda CRM50 (regional variations).
Design Philosophy:
Emphasizes sporty styling, performance-oriented chassis for its class.
Engine Type:
Liquid-cooled, two-stroke single-cylinder engine.
Chassis Features:
Upside-down front forks, aluminum alloy swingarm, perimeter frame.
Braking Setup:
Disc brakes front and rear, often with radial-mount calipers on the front.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures.
Cooling System:
Radiator, hoses, water pump, thermostat maintenance and repair.
Fuel System:
Carburetor (e.g., Dell'Orto PHVA), fuel lines, fuel pump (if applicable), fuel tank servicing.
Ignition System:
Spark plug, ignition coil, CDI unit, wiring diagnostics.
Exhaust System:
Exhaust pipe, muffler, lambda sensor (if applicable) maintenance and replacement.
Transmission And Drivetrain:
Gearbox operation, clutch (cable-actuated), chain drive, sprockets inspection and maintenance.
Brakes System:
Front and rear brake caliper servicing, master cylinders, brake lines, brake pad replacement, bleeding procedures.
Suspension System:
Front fork (upside-down type common), rear shock absorber inspection, adjustment, and replacement.
Steering System:
Handlebar, steering stem bearings, fork mounting.
Electrical System:
Battery, charging system, lighting (headlight, taillight, indicators), horn, starter motor, wiring diagrams, fuses.
Chassis And Bodywork:
Frame inspection, body panel removal and installation, seat, fuel tank, fairings.
Routine Maintenance:
Oil changes, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement, brake fluid checks.
Troubleshooting Guides:
Diagnostic charts for common starting, running, and electrical issues.
Component Replacement:
Detailed step-by-step instructions for replacing major and minor components.
Torque Specifications:
Crucial torque values for critical fasteners during assembly and disassembly.
Special Tools:
Identification and usage of specialized tools required for certain procedures.
Engine Tuning:
Carburetor adjustment, jetting recommendations for different conditions.
Depth Level:
Comprehensive: Covers basic maintenance to complete engine and chassis overhauls.
Diagnostic Capability:
Detailed troubleshooting steps, symptom-to-cause analysis.
Electrical Diagrams:
Includes detailed wiring schematics for all electrical systems.
Engine Manufacturer:
Aprilia (often utilizing Minarelli AM6 or similar variants)
Displacement:
49.3 cc (approximately)
Bore X Stroke:
39.5 mm x 40.2 mm (typical for Minarelli AM6)
Cooling System:
Liquid-cooled
Induction System:
Carburetor (e.g., Dell'Orto PHVA 14)
Horsepower:
Approximately 2.45 kW (3.3 hp) at 6,500 rpm (for restricted European models) - may vary with tuning and market.
Torque:
Typically around 3.5 Nm at 6,000 rpm (estimated).
Fuel Type:
Unleaded gasoline (95 RON recommended) mixed with 2-stroke oil.
Fuel Tank Capacity:
Approximately 10 liters
Oil Mixing Ratio:
Typically 1:50 (fuel:oil) for automatic oil injection systems.
Crash Test Ratings:
N/A (motorcycle safety is assessed differently than cars).
Braking System:
Disc brakes front and rear, providing effective stopping power.
Tire Specification:
Sport-oriented tires, typically 110/70-17 front and 130/60-17 rear.
Chassis Construction:
Robust perimeter frame designed for stability and handling.
Lighting:
Headlight, taillight, brake light, and turn signals for visibility.
Oil Change Interval:
Every 2,000 - 3,000 km or annually, depending on usage (engine oil for gearbox).
Spark Plug Replacement:
Every 3,000 - 5,000 km (check and clean more frequently).
Chain Lubrication Adjustment:
Every 500 - 1,000 km and after washing/rain.
Air Filter Service:
Every 3,000 - 5,000 km (clean more frequently in dusty conditions).
Brake Fluid Flush:
Every 2 years or as needed based on inspection.
Gearbox Oil:
API GL-4, SAE 75W/90 or SAE 10W/40 motorcycle gear oil (check manual for exact spec).
Coolant:
Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio).
Two Stroke Oil:
High-quality, JASO FD or API TC rated semi-synthetic or fully synthetic 2-stroke oil.
Common Problems:
Carburetor jetting sensitivity to altitude/temperature, potential for stator/CDI failures, aging rubber components (hoses, seals), exhaust valve sticking on older engines.
Typical Repairs:
Carburetor cleaning and adjustment, spark plug fouling, chain and sprocket replacement, brake pad wear, fork seal leaks.
