Segment:
Lightweight sport-oriented motorcycle, popular in the 70cc class during its production era.
Competitors Era:
Competed with other 75cc class motorcycles from brands like Aprilia, Beta, and other European manufacturers.
Performance Focus:
Designed for agile handling and spirited performance within its displacement class.
Design Heritage:
Reflected Cagiva's sportbike styling and engineering approach of the period.
Engine Mechanical:
Disassembly, assembly, inspection, repair of engine components (cylinder, piston, crankshaft, valves, etc.)
Fuel System:
Carburetor adjustment, cleaning, and overhaul; fuel tank and line maintenance.
Ignition System:
Spark plug specifications, ignition timing, coil and CDI unit testing and replacement.
Cooling System:
Air-cooled engine specifications; radiator (if applicable) and coolant checks.
Exhaust System:
Muffler and pipe inspection and replacement.
Transmission:
Gearbox disassembly, assembly, inspection, and lubrication specifications.
Clutch System:
Clutch plate inspection, adjustment, and replacement procedures.
Suspension Front:
Fork oil change, seal replacement, spring inspection, and general fork maintenance.
Suspension Rear:
Shock absorber inspection, adjustment, and linkage maintenance.
Braking System Front:
Disc brake caliper overhaul, pad replacement, fluid change, bleeding procedures.
Braking System Rear:
Drum brake adjustment and inspection.
Wheel And Tire:
Tire pressure specifications, wheel bearing inspection and replacement.
Electrical System:
Wiring diagrams, battery maintenance, lighting system checks, fuse identification.
Frame And Bodywork:
Chassis inspection, fairing removal and installation, seat adjustment.
Preventive Maintenance:
Scheduled maintenance checks, lubrication points, fluid level checks.
Troubleshooting:
Diagnostic guides for common running issues, electrical faults, and mechanical problems.
Repair Procedures:
Step-by-step instructions for component removal, disassembly, cleaning, inspection, reassembly, and installation.
Adjustments:
Carburetor idle speed, clutch engagement, brake lever free play, chain tension.
Specifications Data:
Torque values, clearance measurements, fluid capacities, electrical resistances.
Depth Level:
Comprehensive, covering all major mechanical and electrical systems for repair and maintenance.
Detail Level:
Detailed exploded views, diagrams, and step-by-step procedural text.
File Type:
Likely PDF. Searchable text for ease of use is a common feature.
Print Quality Digital:
High resolution, suitable for screen viewing and printing individual pages.
Binding Type Physical Analogy:
Analogous to a professional workshop manual, typically perfect bound or spiral bound for lay-flat use.
Paper Type Physical Analogy:
Durable, matte finish paper suitable for workshop environments.
Engine Type:
Two-stroke, single-cylinder
Displacement:
74.9 cc (approx.)
Bore X Stroke:
Specific dimensions available in manual, typically around 49.5 x 41.2 mm.
Cooling System:
Air-cooled
Compression Ratio:
Refer to manual for precise value (likely around 7.5:1 - 8.5:1).
Horsepower Output:
Approximately 9-11 HP at specified RPM. Exact figures in manual.
Torque Output:
Refer to manual for specific torque figures.
Carburetor Model:
Likely a Dell'Orto PHBN or similar 19-21mm carburetor. Specific model in manual.
Fuel Type:
Unleaded gasoline (min 91 RON recommended)
Fuel Mixture:
Two-stroke oil mixed with gasoline (typically 1:50 ratio unless specified otherwise).
Fuel Tank Capacity:
Refer to manual (typically 5-7 liters).
Safety Standards Era:
Met European safety standards of the early 1990s. Specific certifications not usually detailed in service manuals.
Braking System Type:
Front: Hydraulic disc brake; Rear: Drum brake.
Lighting:
Headlight, taillight, brake light, turn signals.
Frame Construction:
Steel perimeter frame for rigidity and handling.
Oil Change Interval:
Refer to manual. Typically every 3,000-5,000 km for gearbox oil. Two-stroke oil is mixed with fuel.
Spark Plug Replacement:
Refer to manual. Typically every 5,000-10,000 km.
Air Filter Cleaning:
Refer to manual. Frequent checks recommended, especially in dusty conditions.
Chain Lubrication Tension:
Regular checks and lubrication are crucial, typically every 500-1000 km or after riding in wet conditions.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (check manual for precise specification).
Fork Oil Type:
Refer to manual for viscosity and type (e.g., SAE 10W fork oil).
Coolant Type:
N/A (Air-cooled engine).
Common Wear Items:
Clutch plates, piston rings, fork seals, carburetor diaphragms (age-related).
Electrical Reliability:
Older electrical systems can sometimes experience issues with connectors, grounds, or aging components. Manual aids diagnosis.
Manufacturer Origin:
Cagiva is an Italian motorcycle manufacturer, founded in 1978.
Prima Series:
The Prima series represented Cagiva's offerings in the smaller displacement, sporty street bike segment.
1992 Context:
Represents a specific iteration of the Prima 75 model during the early 1990s, a period of evolving motorcycle technology.
Production Period:
The Prima 75 was produced through the late 1980s and early 1990s. Specific production years of the 75cc model range are detailed in historical resources.
Manufacturing Location:
Italy
