🏷️ Basic Information

Make:

Aprilia

Model:

Leonardo 125

Year:

1997

Model Code:

AP06

👋 Introduction

Market Segment:

125cc Scooter Segment, aimed at urban commuting and light touring.

Target Audience:

Owners and independent mechanics seeking detailed technical information for maintenance and repair.

Competitors 125Cc Scooters 1997:

Honda Pantheon 125, Piaggio Liberty 125, Vespa ET4 125, Yamaha Majesty 125.

Design Philosophy:

Sporty styling combined with practicality for urban mobility. Focus on Italian design flair.

Manual Value Proposition:

Provides the definitive technical resource for maintaining and repairing the Aprilia Leonardo 125, enabling owners to perform tasks themselves or understand complex repairs.

📋 Manual Details

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

Digital (likely PDF)

Page Count Estimated:

Approximately 200-300 pages (typical for this era and type of manual)

📖 Manual Coverage

Engine Mechanical:

Complete engine overhaul, disassembly, assembly, component inspection, torque specifications, timing, valve adjustment

Fuel System:

Carburetor tuning and overhaul, fuel pump, fuel lines, fuel tank maintenance

Ignition System:

Ignition coil, spark plug, CDI unit, wiring diagrams, timing checks

Cooling System:

Radiator, coolant, water pump, fan (if applicable), thermostat

Exhaust System:

Muffler, exhaust pipe inspection and replacement

Transmission Drivetrain:

Automatic transmission (CVT) operation, maintenance, belt replacement, roller inspection, clutch operation

Suspension Front:

Fork assembly, seals, oil replacement, spring specifications, steering head bearings

Suspension Rear:

Shock absorber, swingarm, bushings, bearings, linkage maintenance

Braking System Front:

Brake caliper, master cylinder, brake pads, brake fluid, brake lines, rotor inspection

Braking System Rear:

Brake caliper, master cylinder, brake pads, brake fluid, brake lines, rotor inspection (if disc) or drum brake servicing

Wheels Tires:

Wheel bearing inspection, tire pressure recommendations, wheel balancing (if applicable)

Electrical System:

Wiring diagrams, battery, charging system (stator, rectifier/regulator), lighting, starter motor, horn, fuses

Bodywork Chassis:

Fairing removal and installation, seat, storage compartment, frame inspection, body panel alignment

Controls:

Handlebars, levers, cables (throttle, brake), footpegs, switchgear maintenance

Routine Maintenance:

Oil changes, filter replacement, spark plug replacement, air filter cleaning/replacement, chain adjustment (if applicable), brake fluid flush, coolant flush, valve clearance checks

Troubleshooting:

Diagnostic charts, common problems and their solutions, symptom-based troubleshooting

Repair Rebuild:

Step-by-step instructions for component disassembly, repair, and reassembly

Diagnostics:

Electrical system testing, ignition system diagnostics, engine performance troubleshooting

Installation:

Guidance on replacing common wear items and components

Depth:

Comprehensive, covering all aspects from routine maintenance to major overhaul and diagnostics.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution scans of original factory documentation, ensuring clarity of text and diagrams.

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

Four-stroke, single-cylinder, liquid-cooled

Displacement:

124.9 cc (7.62 cubic inches)

Bore X Stroke:

57.0 mm x 48.6 mm

Compression Ratio:

10.0:1 (typical for this engine family)

Valve Train:

SOHC, 2 valves per cylinder

Horsepower Estimated:

Approximately 12-15 HP @ 8000-9000 RPM

Torque Estimated:

Approximately 10-12 Nm @ 7000-8000 RPM

Carburetor:

Mikuni VM26SS or similar (specific model to be confirmed in manual)

Fuel Type:

Unleaded gasoline, minimum 91 RON

Oil Type:

API SG or higher, SAE 10W-40 motorcycle oil (check manual for exact specification)

Oil Capacity With Filter:

Approximately 0.9 - 1.1 Liters (check manual for exact specification)

🔧 Transmission

Transmission Type:

Automatic Continuously Variable Transmission (CVT)

Clutch Type:

Automatic centrifugal clutch

Belt Drive:

V-belt drive for transmission

Final Drive:

Gear drive

📐 Dimensions

Length:

Approx. 1900 mm (subject to variation)

Width:

Approx. 720 mm (subject to variation)

Height:

Approx. 1290 mm (subject to variation, including windscreen)

Wheelbase:

Approx. 1340 mm (subject to variation)

Dry Weight:

Approx. 140 kg

Fuel Tank Capacity:

Approx. 10 Liters

Underseat Storage:

Sufficient for one full-face helmet and small items.

🛡️ Safety Features

Braking:

Front disc brake, Rear disc brake (or drum on some variations). ABS was not a common feature on 125cc scooters of this era.

Lighting:

Halogen headlight, taillight, turn signals. Reflective elements.

Frame Construction:

Steel underbone frame providing structural integrity.

💡 Technology Features

Dashboard:

Analog speedometer, odometer, fuel gauge, and indicator lights (turn signals, high beam, oil pressure).

ABS:

Not typically equipped on this model.

Connectivity Features:

N/A for this model and era.

🔧 Maintenance

Oil Change:

Every 3,000 km or 6 months, whichever comes first (typical recommendation, check manual).

Air Filter Cleaning:

Every 3,000 km or 6 months.

Spark Plug Replacement:

Every 6,000 km or 12 months.

Cv Belt Inspection:

Every 6,000 km or 12 months. Replacement recommended around 12,000-18,000 km depending on usage.

Valve Clearance Check:

Every 6,000 km or 12 months.

Brake Fluid:

DOT 4 (check manual for confirmation).

Coolant:

Ethylene glycol-based antifreeze, 50/50 mix with distilled water (check manual for specific type).

Gear Oil:

SAE 80W-90 hypoid gear oil (check manual for exact specification).

Common Wear Items:

CV transmission belt, variator rollers, brake pads, fork seals, exhaust system corrosion.

Electrical Gremlins:

Wiring harness connections can sometimes degrade over time, leading to intermittent electrical faults.

Carburetor Issues:

Can become clogged if fuel is left sitting for extended periods, requiring cleaning and synchronization.

📚 Vehicle History

Manufacturer:

Aprilia S.p.A., a renowned Italian manufacturer of motorcycles and scooters, known for performance and sporty design.

Leonardo Lineup:

The Leonardo line was introduced in the mid-1990s as Aprilia's premium scooter offering, competing with established Italian and Japanese brands. It evolved with larger engine capacities (e.g., 150cc, 250cc) in later years.

Production Period:

The first generation Leonardo 125 was produced from approximately 1996 through the early 2000s.

Manufacturing Location:

Italy

🏆 Awards & Recognition

Market Perception:

The Leonardo was generally well-received for its Italian styling and decent performance in its class. Often seen as a stylish alternative to more utilitarian scooters.