Segment:
Lightweight scooter segment, popular for urban commuting and light touring.
Target Audience:
New riders, commuters, and owners seeking to maintain or repair their Aprilia Leonardo 125.
Competitors:
Honda Pantheon 125, Yamaha Majesty 125, Gilera Nexus 125 (in later years), Piaggio Skipper 125.
Design Philosophy:
European styling with a focus on practicality, comfort, and sporty performance for a 125cc scooter.
Value Proposition:
Provides authoritative, factory-approved procedures for accurate maintenance and repair, crucial for preserving performance and longevity.
Engine:
Complete overhaul, tuning, troubleshooting, carburetor, lubrication system, cooling system (if applicable), fuel delivery, ignition system.
Transmission:
Automatic CVT (Continuously Variable Transmission) maintenance, inspection, belt replacement, clutch service, roller inspection.
Chassis And Suspension:
Front fork (telescopic), rear shock absorber(s), swingarm, steering head bearings, wheel bearings, alignment.
Brakes:
Front and rear brake systems (disc brakes), brake pad replacement, caliper service, hydraulic system bleeding, brake fluid specifications.
Electrical System:
Wiring diagrams, lighting system, starter system, battery, charging system (alternator/stator), ignition coils, fuses, relays, instrument cluster.
Fuel System:
Fuel tank, fuel lines, fuel filter, carburetor (likely Mikuni or Keihin), fuel pump (if applicable).
Bodywork And Trim:
Fairings, seat, body panels, mirrors, lighting fixtures, fasteners, graphics.
Maintenance:
Routine checks, oil changes, filter replacements, spark plug service, chain adjustment (if applicable), brake fluid changes, coolant checks (if liquid-cooled).
Troubleshooting:
Diagnostic charts for common problems related to starting, running, electrical issues, and performance.
Repair:
Detailed step-by-step instructions for component disassembly, inspection, repair, and reassembly.
Specifications And Data:
Torque specifications, clearances, fluid capacities, electrical resistance values, timing settings.
Depth Level:
Comprehensive, covering from basic maintenance to complete engine and component overhauls. Suitable for professional technicians and advanced DIY mechanics.
Digital Format:
Likely PDF; optimized for digital viewing and printing.
Print Readability:
High-resolution scans of original factory documentation, ensuring clarity of text and diagrams.
Physical Binding:
Not applicable for digital format. If printed, expected to be bound for durability.
Physical Paper:
Not applicable for digital format. Original factory manuals typically printed on durable paper stock.
Engine Type:
Four-stroke, single-cylinder
Displacement:
124.5 cc (approximately)
Bore X Stroke:
Specifications vary, but typically around 52.4mm x 57.8mm for similar Aprilia engines of this era.
Cooling System:
Liquid-cooled
Valve Train:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Horsepower:
Approximately 10.5 - 12 HP at 8,000-8,500 RPM (varies by year and specific tuning)
Torque:
Approximately 10 Nm (7.4 lb-ft) at 7,000-7,500 RPM (varies)
Fuel Delivery:
Carburetor (likely Mikuni VM26 or similar)
Fuel Type:
Unleaded gasoline, 95 RON (Octane Rating)
Oil Type:
API SG or higher, SAE 10W-40 motorcycle specific engine oil
Oil Capacity:
Approximately 1.2 - 1.3 liters (including filter change)
Type:
Automatic Continuously Variable Transmission (CVT)
Drive Belt Part Number:
Refer to manual for specific Aprilia part number (e.g., AP8200298 or equivalent).
Clutch Type:
Automatic centrifugal dry clutch
Final Drive:
Gear reduction via enclosed chain or gears.
Length:
Approximately 1,940 mm (76.4 in)
Width:
Approximately 730 mm (28.7 in)
Height:
Approximately 1,330 mm (52.4 in) (to top of screen)
Dry Weight:
Approximately 140-150 kg (309-331 lbs)
Gross Vehicle Weight Rating Gvwr:
Approximately 300 kg (661 lbs)
Underseat Storage:
Sufficient for a full-face helmet (design dependent).
Crash Test Information:
Not applicable to motorcycle/scooter safety ratings in the same way as automobiles. Focus is on rider safety features.
Braking System:
Front: Single hydraulic disc; Rear: Single hydraulic disc (some models may have drum rear).
Tires:
Tubeless, with typical sizes: Front 120/70-14, Rear 130/60-13 (verify with manual).
Lighting:
Halogen headlight, LED or incandescent tail and brake lights, turn signals.
Frame Construction:
Steel tubular frame, designed for stability and handling.
Instrument Cluster:
Analog speedometer and tachometer, fuel gauge, coolant temperature gauge (on some variants), odometer, trip meter, warning lights.
ABS Availability:
ABS was generally not standard or widely available on 125cc scooters of this era. Manual will not cover ABS unless specified for a particular variant.
Connectivity Features:
None, as this is a 1997-2003 era scooter with traditional mechanical and electrical systems.
Engine Oil Change:
Every 3,000-5,000 km or annually, whichever comes first. Refer to manual for exact interval.
Spark Plug Replacement:
Every 6,000-10,000 km. Check gap at 3,000 km.
Air Filter Cleaning Replacement:
Clean every 3,000 km, replace every 12,000 km or as needed.
Cvt Belt Inspection Replacement:
Inspect every 5,000 km, replace every 10,000-15,000 km (depending on wear).
Brake Fluid Flush:
Every 2 years, or as per manual recommendations.
Coolant Type:
Ethylene glycol-based antifreeze, 50% mixture with distilled water.
Brake Fluid Type:
DOT 4 hydraulic brake fluid.
Common Problems:
CVT belt wear, carburetor jetting issues due to fuel quality variations, starter motor reliability on older units, occasional electrical connector corrosion.
Recommended Preventative Measures:
Regular cleaning of the CVT cover and variator weights, periodic spark plug checks, maintaining battery charge, using high-quality fuel.
Manufacturer:
Aprilia is an Italian manufacturer with a strong heritage in racing and performance motorcycles.
Founding:
Founded in 1945.
Introduction Year:
The Leonardo line was introduced in the mid-1990s.
Positioning:
Positioned as a more premium and sporty option within the 125cc scooter market, often featuring more robust suspension and braking than competitors.
Manufacturing Location:
Primarily manufactured in Italy.
