Segment:
Lightweight scooter segment, designed for urban commuting and recreational use.
Competitors:
Competed with models like the Honda SH125, Yamaha Majesty 125, and Vespa ET4 during its production run.
Design Philosophy:
Combines Italian styling with practical scooter ergonomics, offering a balance of performance and comfort for its class.
Target Audience:
New riders, urban commuters, and those seeking an accessible and stylish European-branded scooter.
Overall Coverage:
Comprehensive repair and maintenance for the 1997 Aprilia Leonardo 125.
Specific Systems:
Engine, fuel system, cooling system, transmission, chassis, suspension, brakes, electrical system, bodywork, and troubleshooting.
Page Count:
Approximately 300 pages (estimated based on typical service manuals of this era).
Manual Type:
Factory Service Manual / Workshop Manual
Engine Mechanical:
Detailed disassembly, inspection, repair, and reassembly of engine components including cylinder, piston, crankshaft, connecting rod, valves, camshaft, timing system.
Fuel System:
Carburetor tuning and overhaul, fuel tank, fuel lines, fuel pump inspection and maintenance.
Cooling System:
Radiator, cooling fan, thermostat, coolant hoses, flushing and refilling procedures.
Transmission Drivetrain:
Automatic transmission operation, maintenance, and common repair procedures. Drive belt inspection and replacement.
Chassis Frame:
Frame inspection, welding repair guidelines (if applicable), subframe maintenance.
Suspension Steering:
Front fork overhaul, rear shock absorber inspection and replacement, steering column and linkage maintenance.
Brake System:
Front and rear brake caliper service, brake pad replacement, brake fluid bleeding and replacement, master cylinder inspection.
Electrical System:
Wiring diagrams, battery maintenance, charging system (stator, regulator/rectifier), starter motor, ignition system (CDI, spark plug), lighting system, horn, instrumentation.
Bodywork Exterior:
Fairing removal and installation, seat maintenance, panel fitment, luggage options (if applicable).
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, chain/belt adjustments, brake fluid checks, tire pressure checks.
Troubleshooting:
Diagnostic charts and common problem-solving guides for starting issues, running problems, electrical faults, and braking anomalies.
Major Repairs:
Engine rebuilds, transmission overhauls, suspension component replacement, electrical system diagnosis and repair.
Diagnostic Procedures:
Step-by-step instructions for diagnosing faults using visual inspection, electrical testing, and component testing.
Depth Of Coverage:
Highly detailed, covering everything from basic adjustments to complete engine and transmission disassembly and reassembly, suitable for professional mechanics and experienced DIY enthusiasts.
Digital Format:
PDF (Portable Document Format)
Image Resolution:
High-resolution scans for clear diagrams and text.
Digital Accessibility:
Accessible on computers, tablets, and smartphones.
Digital Searchability:
Searchable text for quick access to specific information.
Engine Type:
Four-stroke, single-cylinder, liquid-cooled
Displacement:
124.9 cc (7.62 cubic inches)
Bore X Stroke:
52.4 mm x 57.9 mm (2.06 x 2.28 inches)
Compression Ratio:
10.8:1 (typical for this engine type)
Horsepower:
Approximately 13.6 HP @ 8,500 RPM (Manufacturer specific, may vary slightly)
Torque:
Approximately 11.0 Nm @ 7,000 RPM (Manufacturer specific, may vary slightly)
Carburetor:
Mikuni VM20SS or similar (specific model may vary, manual will detail)
Fuel Capacity:
Approx. 7.0 Liters (1.85 US gallons)
Oil Type:
SAE 10W-40 API SG or higher (specified in manual)
Oil Capacity:
Approx. 0.9 Liters (0.95 US quarts) without filter change / 1.0 Liter with filter change (specified in manual)
Length:
Approx. 1,950 mm (76.8 inches)
Width:
Approx. 740 mm (29.1 inches)
Height:
Approx. 1,300 mm (51.2 inches)
Wheelbase:
Approx. 1,340 mm (52.8 inches)
Dry Weight:
Approx. 135 kg (297.6 lbs)
Gross Vehicle Weight Rating:
Not explicitly specified, but rider + cargo capacity is implied.
Underseat Storage:
Sufficient for one full-face helmet (typical for this class).
Crash Test Data:
Not applicable as scooters are not typically subject to formal crash testing in the same manner as automobiles.
Braking System:
Front disc brake, Rear drum brake (standard configuration).
Lighting:
Halogen headlight, taillight, brake lights, turn signals.
Frame Construction:
Steel frame designed for stability and rider support.
Instrument Panel:
Analog speedometer, tachometer (may be integrated or separate), fuel gauge, coolant temperature warning light, turn signal indicators, high beam indicator.
ABS:
Not available on this model.
Smartphone Integration:
Not available on this model.
Engine Oil Change:
Every 3,000 km or 6 months, whichever comes first.
Air Filter Cleaning:
Every 3,000 km or annually.
Spark Plug Replacement:
Every 6,000 km or 12 months.
Transmission Belt Inspection:
Every 6,000 km or 12 months.
Brake Fluid Replacement:
Every 2 years, regardless of mileage.
Engine Oil:
SAE 10W-40, API SG or higher.
Coolant:
Ethylene glycol based coolant, 50/50 mix with distilled water.
Carburetor Issues:
Can be prone to clogging if fuel is not fresh or if left sitting for extended periods. Requires regular cleaning.
Cv Belt Wear:
CVT drive belts can wear over time and require timely replacement to prevent slipping and potential drivetrain damage.
Electrical Connector Corrosion:
As with many scooters of this era, electrical connectors can be susceptible to corrosion, leading to intermittent faults. Regular inspection and cleaning are recommended.
Aprilia History:
Aprilia, an Italian manufacturer, has a long-standing history in motorcycle racing and production, known for its sporty and innovative designs.
Leonardo Series:
The Leonardo series was Aprilia's foray into the maxi-scooter market, offering a blend of sporty performance and touring comfort. The 125cc model was popular for its accessibility and European flair.
Production Years:
The Leonardo line was produced from the late 1990s into the early 2000s, with the 125cc variant being a key model in its initial years.
Manufacturing Location:
Italy
