Vehicle Segment:
Lightweight, agile dual-sport or supermoto-style motorcycle, popular for urban commuting and light off-road use.
Competitors 1991:
Competed with models like the Yamaha DT series, Honda CRM series, and similar displacement European offerings.
Model Selling Points:
Emphasized its sporty handling, torquey small-displacement engine, and versatile dual-purpose capability.
Manual Coverage Scope:
Comprehensive repair and adjustment procedures for the Cagiva Supercity 75 (1991 model year).
Estimated Page Count:
Estimated 200-300 pages (typical for this era and model type, specific count not provided).
Manual Classification:
Factory Service/Repair Manual
Language:
English (Assumed, based on typical product listings for international markets)
Format:
Likely printed document or PDF digital format.
Engine And Fuel:
Engine disassembly, assembly, tuning, carburetor service, fuel system components.
Transmission And Drivetrain:
Gearbox overhaul, clutch operation, chain drive maintenance.
Brakes:
Front and rear brake system inspection, service, and adjustment.
Suspension And Steering:
Front fork service, rear shock absorber replacement, steering head bearing adjustment.
Electrical System:
Ignition system troubleshooting, lighting, wiring diagrams, battery maintenance.
Chassis And Bodywork:
Frame inspection, fairing removal and installation, seat and tank procedures.
Routine Maintenance:
Oil changes, filter replacements, chain lubrication and adjustment, spark plug service.
Troubleshooting:
Diagnostic flowcharts and symptom-based problem solving.
Repair And Rebuild:
Detailed step-by-step instructions for component disassembly, cleaning, inspection, and reassembly.
Adjustments:
Carburetor synchronization, ignition timing, brake lever play, clutch engagement.
Depth Of Coverage:
Comprehensive, suitable for both novice DIY enthusiasts and experienced mechanics, covering complete teardowns and rebuilds.
Digital Format Specifications:
If PDF, expect searchable text, high-resolution diagrams, and printable pages.
Printed Format Quality:
If printed, expect durable paper stock and clear, legible text and diagrams.
Printed Format Binding:
Likely saddle-stitched or perfect bound for ease of use during repairs.
Printed Format Paper:
Durable, possibly coated paper to withstand workshop environments.
Engine Type:
Two-stroke, single-cylinder
Displacement:
75 cc (approximate, often rounded or specific model variants exist)
Bore X Stroke:
Typical for this era, e.g., 48mm x 40mm (Requires manual verification)
Cooling System:
Liquid-cooled (common for performance-oriented 2-strokes of this size)
Horsepower:
Estimated 10-15 HP (Typical for 75cc 2-stroke sport models, requires manual verification)
Torque:
Torquey low-end delivery for its class.
Carburetor Details:
Likely a single Mikuni or Dell'Orto carburetor, size appropriate for displacement (e.g., 26-28mm). Manual will specify model and jetting.
Fuel Type:
Unleaded gasoline with a specific 2-stroke oil mixture (e.g., 50:1). Manual will specify recommended oil.
Oil Delivery:
Automatic oil injection system or pre-mix.
Wheelbase:
Approx. 1300-1350 mm (Typical for this class, manual confirmation needed)
Seat Height:
Approx. 850-880 mm (Characteristic of a dual-sport/supermoto stance)
Dry Weight:
Approx. 95-105 kg (Lightweight design for agility)
Fuel Tank Capacity:
Approx. 9-12 liters. Manual will provide exact capacity and recommended fuel grade.
Crash Safety Standards:
Motorcycle safety standards of the era, no specific ratings like modern car tests.
Braking System:
Front disc brake, rear drum brake (common for this model and year). Manual details caliper type, pad specs, fluid type (DOT 4).
Tire Specifications:
Front: 80/90-21 or 90/90-21, Rear: 110/90-18 or similar. Manual specifies sizes and recommended pressures.
Lighting System:
Headlight, taillight, brake light, turn signals. Manual details bulb types and specifications.
Instrumentation:
Analog speedometer, tachometer, odometer, neutral indicator, turn signal indicators, headlight high-beam indicator.
ABS Or Traction Control:
None (Not applicable for this model and era).
Electronic Features:
Basic electrical system for ignition, lighting, and charging. No advanced electronic rider aids.
Oil Change Interval:
Every 2,000-3,000 km or annually. Manual specifies exact interval and oil type (e.g., SAE 10W-40, JASO MA).
Spark Plug Replacement:
Typically every 5,000-7,000 km. Manual will list specific plug type (e.g., NGK B8ES or equivalent) and gap.
Chain Maintenance:
Lubricate every 500 km and adjust tension as needed. Manual provides chain slack specifications.
Engine Oil Type:
2-stroke engine oil, pre-mix or auto-lube. Manual specifies brand recommendations and API/JASO rating (e.g., API TC, JASO FD).
Brake Fluid Type:
DOT 4 (typically). Manual will specify exact type and bleeding procedures.
Coolant Type:
Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. Manual will detail capacity and type.
Common Wear Items:
Piston rings, clutch plates, fork seals, carburetor jets, exhaust packing. Manual guides inspection and replacement of these.
Carburetor Tuning Challenges:
Sensitivity to altitude and temperature changes; requires precise jetting and float height adjustments. Manual provides detailed tuning procedures.
Cagiva Legacy:
Cagiva was an Italian motorcycle manufacturer known for its range of sporty and off-road motorcycles, often featuring European design flair.
Supercity Lineage:
The Supercity line represented Cagiva's entry into the competitive lightweight dual-sport/supermoto segment, evolving from their earlier enduro models.
Manufacturing Location:
Italy (Cagiva motorcycles were manufactured in Italy).
Production Period:
The Supercity 75 was produced in the late 1980s and early 1990s. The 1991 model is a specific iteration.
