Market Segment:
Lightweight, entry-level performance motorcycle (sport-style commuter).
Target Audience:
Young riders, commuters, those seeking an affordable and nimble motorcycle.
Key Competitors:
Yamaha DT 125, Honda MTX 125, Suzuki RM 125, Aprilia MX 125 (though Cagiva often positioned itself as more premium).
Design Philosophy:
Italian flair combined with robust performance for everyday use and light off-roading.
Performance Orientation:
Emphasized sporty handling and spirited acceleration for its class.
Primary Coverage:
Service and Repair
Secondary Coverage:
Maintenance, Troubleshooting, Diagnostics
Estimated Page Count:
Approx. 200-300 pages (typical for comprehensive service manuals of this era)
Manual Type:
Service Manual / Repair Manual
Language:
Likely English, potentially with other European languages depending on original publication
Engine:
Comprehensive coverage including disassembly, inspection, repair, and reassembly of the 125cc two-stroke engine, cooling system, lubrication system.
Fuel System:
Carburetor tuning, cleaning, rebuilding; fuel tank and lines inspection and maintenance.
Ignition System:
Spark plug selection and gap, ignition timing, coil and wiring checks.
Transmission:
Gearbox operation, clutch service, chain maintenance and adjustment, gear shift mechanism.
Chassis And Frame:
Frame inspection, fork and suspension servicing, steering head bearing maintenance.
Brakes:
Front and rear brake system maintenance, including hydraulic components (if applicable), brake pad replacement, bleeding procedures.
Electrical System:
Wiring diagrams, lighting system, battery maintenance, charging system inspection, starter operation (if applicable).
Bodywork And Trim:
Fairing removal and installation, seat maintenance, general body panel adjustments.
Routine Maintenance:
Oil changes, filter replacements, chain lubrication and adjustment, tire pressure checks, brake adjustments.
Troubleshooting:
Diagnostic charts for common problems, symptom-based fault finding.
Engine Rebuild:
Detailed step-by-step instructions for major engine overhauls, including piston, ring, and cylinder replacement.
Suspension Servicing:
Fork seal replacement, oil changes, shock absorber adjustments and rebuilds.
Electrical Diagnostics:
Testing of electrical components, continuity checks, voltage measurements.
Clutch Adjustment And Replacement:
Friction plate replacement and proper adjustment of clutch cable or hydraulic system.
Depth Of Coverage:
Comprehensive, covering routine maintenance to complete engine and component overhauls. Includes detailed torque specifications and diagnostic procedures.
File Format:
N/A (Printed)
Print Quality:
Likely standard print quality for technical manuals of the era, with clear diagrams and text.
Binding Type:
Likely saddle-stitched or perfect bound
Paper Type:
Standard newsprint or coated paper stock, common for motorcycle service manuals.
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Displacement:
124.5 cc (approx.)
Bore X Stroke:
Likely around 56 mm x 50.6 mm (typical for 125cc 2-strokes of this period)
Compression Ratio:
Typically in the range of 7.0:1 to 8.0:1 for 2-stroke performance engines.
Horsepower:
Approximately 20-25 HP (depending on tuning and market regulations)
Torque:
Estimated 1.5 - 1.8 kgf-m (or equivalent Nm)
Carburetor Model:
Likely a Dell'Orto PHBH or similar 28-30mm carburetor.
Fuel Type:
Unleaded gasoline with 2-stroke oil mix (premix or oil injection system, depending on exact model variant).
Oil Type:
High-quality 2-stroke engine oil (specific API TC or JASO FD/FD ratings recommended).
Safety Ratings:
No formal crash ratings for motorcycles of this era. Safety relies on design and rider skill.
Braking System:
Front disc brake, rear drum brake (common configuration for the time).
Lighting:
Headlight, tail light, brake light, turn signals.
Tires:
Tubed tires, likely with sizes like 80/90-21 front and 100/90-18 rear for a dual-sport feel.
Instrumentation:
Analog speedometer, tachometer, odometer, neutral indicator, turn signal indicators, high beam indicator.
ABS:
Not applicable for this model and era.
Usb Charging:
Not applicable for this model and era.
Oil Change Interval:
Typically every 2,000 - 3,000 km or annually, whichever comes first.
Spark Plug Replacement:
Every 5,000 - 10,000 km, or as per manual recommendations.
Air Filter Cleaning:
Regular inspection and cleaning, replacement every 10,000 - 15,000 km or as needed.
Chain Maintenance:
Lubrication and adjustment every 500-1000 km, inspection for wear at similar intervals.
Cooling System Coolant:
Mixture of distilled water and ethylene glycol-based antifreeze. Specific type and ratio to be confirmed in manual.
Gearbox Oil Type:
API GL-4 or GL-5, SAE 80W-90 gear oil. Capacity typically around 0.8-1.0 liters.
Engine Wear:
Two-stroke engines of this era can experience cylinder and piston ring wear if not properly maintained, especially with aggressive use. Overheating can be an issue if cooling system is neglected.
Carburetor Issues:
Varnishing of fuel leading to clogged jets and unstable idling is common if the bike sits for extended periods. Carburetor synchronization may be required.
Electrical Gremlins:
Corrosion on electrical connectors and wiring faults can develop over time, requiring careful inspection and cleaning.
Suspension Leaks:
Fork seals can degrade, leading to oil leaks, which is a common maintenance item.
Manufacturer Origin:
Cagiva is an Italian motorcycle manufacturer, known for its performance and stylish designs.
Super City Line:
The Super City line represented Cagiva's offering in the lightweight, sporty dual-purpose segment, often featuring liquid-cooled engines and modern styling for its time.
Production Period:
The early 1990s was a period of significant development for Cagiva, with the Super City 125 being part of their broader range of small-displacement motorcycles.
