Category:
Lightweight sport/supermoto-style moped
Target Audience:
Young riders, urban commuters, DIY enthusiasts
Key Competitors:
Aprilia SR 50, Beta Ark 50, Malaguti F10, Piaggio Zip 50, Yamaha Jog 50
Vehicle Design:
Agile handling, sporty styling reminiscent of larger Cagiva motorcycles, suitable for urban environments.
Primary Coverage:
Mechanical, Electrical, Bodywork, and Maintenance for Cagiva Supercity 50 (1991)
Secondary Coverage:
Troubleshooting, Diagnostics, Specifications, Diagrams
Estimated Page Count:
200-300 (estimated based on typical factory service manuals for this era and type of vehicle)
Type:
Factory Service Repair Manual
Format:
Printed (as indicated by 'handy, easy to read reference book')
Engine:
Complete disassembly, assembly, inspection, and repair of the 50cc 2-stroke engine, including carburetor, ignition, cooling, and exhaust systems.
Transmission:
Clutch, gearbox operation, adjustment, and overhaul procedures.
Chassis:
Frame inspection, fork and shock absorber service, wheel bearing maintenance, steering head bearing service.
Brakes:
Front and rear brake system service, including caliper, master cylinder, brake lines, and pad replacement.
Electrical:
Wiring diagrams, lighting system, ignition system, battery, charging system, and instrumentation service.
Bodywork:
Fairing removal and installation, seat, fuel tank, and panel servicing.
Maintenance:
Scheduled maintenance checks, lubrication, filter replacement, spark plug service, chain adjustment.
Repair:
Detailed step-by-step repair instructions for all major vehicle components and systems.
Troubleshooting:
Diagnostic procedures for common problems, symptom-based troubleshooting guides.
Assembly Disassembly:
Complete guidance on component removal, disassembly, reassembly, and installation.
Depth:
Comprehensive, from basic adjustments and routine maintenance to complete engine and transmission rebuilds, and electrical system diagnostics.
Digital Format Support:
Not explicitly stated, but typical for this era's manuals to be printed. If a digital version exists, it would likely be a scanned PDF.
Print Quality Standard:
Factory standard, typically black and white line drawings, exploded views, and text.
Binding:
Likely spiral-bound or saddle-stitched for lay-flat usability in a workshop environment.
Paper Quality:
Durable paper suitable for workshop environments, possibly a matte finish to reduce glare.
Engine Type:
Air-cooled, 2-stroke, single-cylinder
Displacement:
49.3 cc (approx.)
Bore X Stroke:
39.0 mm x 41.4 mm (typical for this engine type)
Power Output:
Approx. 5-7 hp (depending on tuning and regulations)
Cooling System:
Forced air cooling
Carburetor:
Dell'Orto PHVA 12 or similar 12mm carburetor
Fuel Type:
Unleaded gasoline (minimum 95 octane recommended), mixed with 2-stroke oil
Oil Mixture Ratio:
Typically 1:50 (1 part oil to 50 parts gasoline), or per Cagiva recommendation
Ignition System:
Electronic ignition (CDI)
Length:
Approx. 1800 mm (estimate)
Width:
Approx. 700 mm (estimate)
Height:
Approx. 1100 mm (estimate)
Dry Weight:
Approx. 80-90 kg (estimate)
Fuel Capacity:
Approx. 5.5 - 6.5 Liters (estimate)
Safety Certification:
European Moped Regulations (CE, etc.)
Braking System:
Front disc brake, rear drum brake (typical configuration)
Lighting:
Headlight, taillight, brake light, turn signals
Frame Construction:
Steel tubular frame for rigidity and rider protection.
Oil Change Frequency:
As per manual: typically every 3,000-5,000 km for gearbox oil, and regular checks for 2-stroke oil injection system (if equipped).
Spark Plug Replacement:
Every 5,000-10,000 km, or as specified by plug manufacturer.
Air Filter Cleaning:
Every 1,000-2,000 km, or more frequently in dusty conditions.
Gearbox Oil:
SAE 80W/90 API GL-3 or GL-4 gear oil (typical specification)
Brake Fluid:
DOT 3 or DOT 4 brake fluid (as per manual)
Coolant:
N/A (air-cooled)
Common Wear Items:
V-belt wear, carburetor gumming, spark plug fouling, aging electrical connectors, exhaust leaks, wear on suspension bushings.
Typical Repairs:
Carburetor cleaning/rebuilding, V-belt replacement, exhaust gasket replacement, fork seal replacement, brake pad/shoe replacement.
