Segment:
Sport 125cc two-stroke motorcycle segment, popular in the late 1980s for its performance and sporty styling.
Target Audience:
Owners and independent mechanics seeking detailed technical information for maintenance and repair of the Cagiva Freccia 125 C9.
Key Competitors:
Competed with other 125cc sportbikes of the era, such as Yamaha TZR125, Aprilia AF1 125, and Honda NSR125.
Vehicle Design:
Known for its aggressive, race-inspired styling, fully faired design, and powerful two-stroke engine for its class.
Manual Value Proposition:
Provides essential, hard-to-find technical data and procedural guidance for maintaining and repairing a classic Italian sportbike.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures for the 125cc two-stroke engine.
Fuel System:
Carburetor tuning and overhaul, fuel tank, fuel lines, and petcock maintenance.
Ignition System:
Spark plug specification, ignition timing, CDI unit, and coil testing.
Cooling System:
Liquid cooling system maintenance, radiator, hoses, and water pump.
Exhaust System:
Expansion chamber and silencer maintenance.
Transmission And Clutch:
Gearbox disassembly, inspection, and repair; clutch operation, adjustment, and replacement.
Chassis And Frame:
Frame inspection, steering head bearing maintenance, and swingarm bearing service.
Suspension Front:
Front fork disassembly, seal replacement, oil level and type specification, and damping adjustments.
Suspension Rear:
Rear shock absorber maintenance, linkage lubrication, and adjustment procedures.
Brakes Front:
Brake caliper overhaul, brake pad replacement, master cylinder service, and hydraulic system bleeding.
Brakes Rear:
Brake drum or caliper maintenance, linkage and cable adjustment.
Wheels And Tires:
Wheel bearing maintenance, tire pressure specifications, and wheel balancing.
Electrical System:
Wiring diagrams, battery maintenance, lighting system service, horn, and indicators.
Bodywork And Plastics:
Fairing removal and installation, seat maintenance, and minor bodywork repairs.
Scheduled Maintenance:
Detailed maintenance schedules for routine checks, oil changes, filter replacements, and component inspections.
Troubleshooting Guide:
Diagnostic procedures for common problems, including starting issues, engine performance problems, and electrical faults.
Engine Rebuild:
Step-by-step instructions for complete engine disassembly, piston and cylinder inspection/replacement, crankshaft service, and bearing replacement.
Carburetor Rebuild:
Detailed instructions for disassembling, cleaning, inspecting, and reassembling the carburetor, including jet sizes and float height specifications.
Fork Seal Replacement:
Complete guide to removing front forks, replacing oil seals, and refilling with correct fork oil and quantity.
Brake System Service:
Procedures for bleeding brake lines, replacing brake pads, and servicing master cylinders and calipers.
Electrical Troubleshooting:
Guidance on using wiring diagrams to diagnose electrical issues, test components like the CDI and stator.
Diagnostic Capabilities:
Advanced diagnostic information for identifying root causes of mechanical and electrical failures.
Rebuilding Procedures:
Detailed instructions suitable for complete engine and component rebuilds, not just basic repairs.
Specifications Data:
Comprehensive torque values, clearances, fluid capacities, and other critical technical data.
Type:
Liquid-cooled, 2-stroke, single-cylinder
Displacement:
124.6 cc (7.6 cu in)
Bore X Stroke:
56.0 mm x 50.6 mm (2.20 in x 1.99 in)
Compression Ratio:
Approximately 7.0:1 (typical for the era, actual may vary)
Induction:
Reed valve induction, typically a single 30mm or 32mm Mikuni or Dell'Orto carburetor.
Lubrication:
Pre-mix or Autolube (oil injection) system.
Horsepower:
Approximately 28-30 HP at 10,500 RPM (manufacturer claimed, may vary based on tune and specific model year variations).
Torque:
Estimated 18-20 Nm (13-15 lb-ft) at approximately 9,000 RPM.
Carburetor Type:
Single Mikuni VM30SC or Dell'Orto PHBH 30 (specific variant dependent).
Fuel Type:
Unleaded gasoline (Octane rating specification provided in manual).
Fuel Tank Capacity:
Approximately 12-14 Liters (3.2-3.7 US gallons).
Oil Change Engine:
Every 3,000-5,000 km (2,000-3,000 miles) or annually. Specifics in manual.
Spark Plug Replacement:
Every 6,000-8,000 km (4,000-5,000 miles). Manual specifies correct plug type and gap.
Chain Lubrication Adjustment:
Every 500-1000 km (300-600 miles) and after washing or riding in rain. Manual details adjustment procedure and slack.
Fork Oil Change:
Recommended every 10,000-15,000 km (6,000-9,000 miles) or as needed based on performance degradation.
Engine Oil Type:
Typically a 10W-40 or 15W-50 motorcycle-specific 2-stroke synthetic or semi-synthetic oil for the autolube system. Pre-mix ratio specified for pre-mix applications.
Fork Oil Type:
Specific viscosity (e.g., SAE 10W, SAE 15W) and volume per fork leg detailed in the manual.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid, as specified by Cagiva.
Coolant Type:
Ethylene glycol based antifreeze mixture with distilled water, typically 50/50 ratio. Manual will specify brand/type if proprietary.
Common Wear Items:
Piston rings, reed valves, clutch plates, fork seals, and exhaust packing (if applicable) are common wear items on 2-stroke performance bikes.
Carburetor Issues:
Can be prone to clogging due to old fuel or debris, requiring regular cleaning and tuning. Jetting may need adjustment with altitude or modifications.
Electrical Reliability:
Older wiring harnesses can develop corrosion or loose connections; CDI units can fail over time.
