Market Segment:
Entry-level to mid-range 125cc sport motorcycle, targeting younger riders and those seeking a stylish, performance-oriented machine for commuter and recreational use.
Competitors 1988:
Yamaha TZR 125, Honda NSR 125, Aprilia AF1 125, Suzuki RG 125 Gamma. Known for its aggressive styling and performance, often competing on aesthetics and handling.
Distinctive Features:
Aerodynamic full fairing, aggressive sportbike styling reminiscent of larger Cagiva models, capable 125cc two-stroke engine, capable chassis and suspension for its class.
Manual Utility:
Essential for owners to perform routine maintenance, diagnostics, and repairs, preserving performance and longevity. Crucial for enthusiasts looking to restore or customize the machine.
Systems Covered Summary:
Engine, Fuel System, Ignition System, Cooling System, Exhaust System, Transmission, Clutch, Chassis, Suspension, Brakes, Electrical System, Bodywork, Maintenance, Troubleshooting, Technical Data.
Page Count:
Approx. 200-250 Pages
Manual Type:
Service Repair Workshop Manual
Format:
Digital (Likely PDF), potentially also available in print.
Engine Systems:
Top-end overhaul, bottom-end rebuild, cylinder head, piston, crankshaft, connecting rods, lubrication, cooling system (radiator, water pump), fuel delivery (carburetor tuning and overhaul), exhaust system.
Transmission Drivetrain:
Gearbox disassembly and reassembly, clutch operation and adjustment, chain drive maintenance, shift mechanism.
Electrical Systems:
Wiring diagrams, ignition system (CDI, spark plugs, coils), lighting (headlight, taillight, indicators), battery, starter motor, charging system (alternator).
Chassis Suspension Brakes:
Frame inspection, front fork service (seals, oil), rear shock absorber adjustment/replacement, front and rear brake system (disc brakes, calipers, master cylinders, fluid replacement), wheel bearings.
Bodywork Controls:
Fairing removal and installation, seat, handlebars, control cables (throttle, clutch), levers, footpegs.
Steering Head:
Steering head bearing inspection, adjustment, and replacement.
Wheels Tires:
Wheel balancing, tire inspection, replacement, and related components like spokes if applicable.
Maintenance Procedures:
Oil changes, filter replacements, spark plug checks, chain adjustment and lubrication, brake fluid flush, coolant checks, carburetor cleaning, air filter service.
Repair Procedures:
Engine rebuild, gearbox repair, suspension fork overhaul, brake caliper rebuild, electrical component replacement, body panel repair.
Troubleshooting:
Diagnostic flowcharts for common performance issues, starting problems, electrical faults, braking irregularities.
Engine Assembly Disassembly:
Detailed instructions for complete engine removal, disassembly, inspection, repair, and reassembly, including torque values for all critical fasteners.
Carburetor Tuning:
Specific guidance on jetting, float height adjustment, idle speed settings, and troubleshooting common carburetor issues.
Electrical Troubleshooting:
Detailed wiring diagrams with explanations of circuit functions and common fault finding techniques.
Depth Of Information:
Comprehensive, covering routine maintenance to full engine and chassis overhauls. Includes detailed step-by-step instructions, exploded diagrams, and torque specifications.
Diagnostic Capabilities:
Extensive troubleshooting guides for identifying the root cause of mechanical and electrical problems, often with specific symptom-to-cause mappings.
Diagrams Illustrations:
Features exploded view diagrams for all major components and systems, aiding in identification and assembly/disassembly procedures.
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Displacement:
124.5 cc (7.6 cubic inches)
Bore X Stroke:
56.0 mm x 50.6 mm
Compression Ratio:
Approx. 7.0:1 (may vary by market/tuning)
Horsepower Claimed:
Approx. 28-30 HP (19-22 kW) at 9,000-10,000 RPM (specific to market regulations)
Torque Claimed:
Approx. 19-20 Nm (14-15 lb-ft) at 8,000-9,000 RPM
Carburetor Model:
Dell'Orto PHBH 28 AS or similar
Fuel Type:
Unleaded gasoline (95 RON recommended), requires 2-stroke oil pre-mix or separate oil injection system.
Fuel Capacity:
Approx. 12-14 Liters (3.2-3.7 US gallons)
Ignition Type:
Electronic CDI (Capacitor Discharge Ignition)
Cooling Method:
Liquid-cooled with fan assist
Lubrication System:
Pre-mix or automatic oil injection (check specific model variant)
Oil Change Interval:
Every 3,000-5,000 km (1,800-3,000 miles) or annually, depending on usage. Check gearbox oil level more frequently.
Spark Plug Replacement:
Every 5,000-10,000 km (3,000-6,000 miles), depending on plug type and usage.
Chain Maintenance:
Lubricate and adjust chain every 500-1,000 km (300-600 miles) or after washing/heavy rain.
Brake Fluid Flush:
Every 2 years or as per manual recommendation.
Engine Oil Type:
2-stroke engine oil, specific grade as per manual (e.g., API TC, JASO FD rated, or specific Cagiva recommendation).
Gearbox Oil Type:
SAE 80W/90 API GL-4 (check manual for precise capacity and specification).
Coolant Type:
Ethylene glycol-based coolant (typically 50/50 mix with distilled water).
Brake Fluid Type:
DOT 3 or DOT 4 (check specific caliper and master cylinder requirements).
Common Wear Items:
Crankshaft seals, piston rings, carburetor jets clogging, exhaust port carbon buildup, aging electrical connectors, fork seal leaks.
Performance Quirks:
Two-stroke engines require diligent maintenance for optimal performance. Carburetor tuning can be sensitive to atmospheric conditions and altitude.
Part Notes:
As a vintage model, genuine Cagiva parts may be scarce. Specialist suppliers or aftermarket options are often necessary. Manual is key for identifying correct part numbers.
