🏷️ Basic Information

Make:

Aprilia

Model:

RS50

Year:

2006

Model Code:

RS 50 (GP Replica)

Chassis Code:

AP02000 series

👋 Introduction

Target Audience:

Owners, DIY enthusiasts, and professional motorcycle mechanics working on the Aprilia RS50.

Segment:

Lightweight sportbike, entry-level performance motorcycle.

Competitors:

Derbi GPR50, Yamaha TZR50, Honda RS125 (though different class, often considered aspirational).

Vehicle Appeal:

Sporty aesthetics, capable handling, powerful for its class, often seen as a stepping stone to larger sportbikes.

Manual Value Proposition:

Empowers owners to perform maintenance and repairs, saving costs and ensuring optimal performance and longevity of their RS50.

📋 Manual Details

Coverage Scope:

Comprehensive service and repair information for the Aprilia RS50 (2006 model).

Page Count:

Approximately 300+

Manual Type:

Workshop Service Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine:

Engine overhaul, troubleshooting, top-end rebuild, bottom-end assembly, cooling system, lubrication.

Fuel System:

Carburetor tuning (Dell'Orto PHVA 17.5 BD), fuel pump, fuel lines, fuel tank maintenance.

Ignition System:

CDI unit, spark plug specifications, wiring diagrams, ignition timing checks.

Transmission:

6-speed gearbox overhaul, clutch assembly, shifting mechanism, gear oil specifications.

Chassis Suspension:

Front fork (upside-down) maintenance and overhaul, rear shock absorber adjustment and replacement, swingarm lubrication.

Brakes:

Front and rear disc brake system maintenance, hydraulic system bleeding, pad replacement, caliper service.

Electrical System:

Full wiring diagrams, battery maintenance, lighting system, starter motor, alternator, fuse box.

Bodywork:

Fairing removal and installation, seat maintenance, handle bar adjustments, decal placement.

Cooling System:

Radiator service, coolant specifications, fan operation, thermostat replacement.

Preventive Maintenance:

Scheduled maintenance checks, lubrication points, filter replacement intervals, fluid level checks.

Troubleshooting:

Diagnostic procedures for common starting, running, and performance issues with step-by-step guides.

Engine Rebuild:

Detailed instructions for engine disassembly, component inspection, reassembly, and torque specifications.

Suspension Adjustment:

Guidance on adjusting front and rear suspension for optimal handling and rider preference.

Carburetor Overhaul:

Complete guide to dismantling, cleaning, and reassembling the Dell'Orto carburetor.

Electrical Diagnostics:

Methods for identifying and repairing electrical faults using wiring diagrams and multimeter testing.

Brake Service:

Step-by-step instructions for brake fluid replacement, caliper maintenance, and pad installation.

Wheel Tire Maintenance:

Tire pressure recommendations, wheel bearing checks, and spoke tensioning (if applicable).

Depth Level:

Comprehensive, suitable for both home mechanics and professional technicians.

Diagnostic Codes:

Includes troubleshooting charts and common fault codes (if applicable).

Torque Specifications:

Detailed torque values for all critical fasteners during assembly and disassembly.

Clearances:

Engine component clearances (piston-to-cylinder, valve clearances if applicable), bearing clearances.

📊 Manual Specifications

File Format:

PDF

Searchability:

Fully searchable text for quick information retrieval.

Printability:

Printable pages for hands-on use in the workshop.

Image Resolution:

High-resolution diagrams and illustrations for clarity.

Binding Type:

N/A (Digital)

Paper Type:

N/A (Digital)

Completeness:

Represents a complete workshop manual, not an excerpt or owner's manual.

⚙️ Engine Specifications

Engine Type:

Two-stroke, single-cylinder, liquid-cooled

Displacement:

49.7 cc

Bore X Stroke:

39.5 mm x 40.3 mm

Compression Ratio:

10.3:1 (nominal)

Carburetor Model:

Dell'Orto PHVA 17.5 BD

Exhaust System:

Expansion chamber with catalytic converter (Euro 2 compliant).

Horsepower Peak:

Approx. 7.35 hp @ 9,250 rpm (for restricted version, uncorked significantly higher)

Torque Peak:

Approx. 6.2 Nm @ 8,000 rpm (for restricted version)

Fuel Type:

Unleaded gasoline (95 RON recommended)

Oil Mixture:

Premix (separate oil reservoir for automatic oil injection - recommended ratio 1:50 for two-stroke oil)

🔧 Transmission

Transmission Type:

6-speed manual sequential gearbox

Clutch Type:

Wet multi-plate clutch

Gear Ratios:

Specific gear ratios detailed in the manual (e.g., 1st: 2.615, 2nd: 1.875, 3rd: 1.381, 4th: 1.143, 5th: 1.000, 6th: 0.900)

Final Drive:

Chain drive (e.g., 11/60 ratio)

Gear Oil Type:

API GL-4, SAE 75W/90 or SAE 80W synthetic gear oil

Gear Oil Capacity:

Approx. 0.65 liters

📐 Dimensions

Length:

Approx. 1,950 mm

Width:

Approx. 720 mm

Height:

Approx. 1,130 mm

Wheelbase:

Approx. 1,345 mm

Seat Height:

Approx. 805 mm

Dry Weight:

Approx. 104 kg

Gross Vehicle Weight:

Approx. 264 kg

Fuel Tank Capacity:

Approx. 13 liters

🛡️ Safety Features

Safety Standards:

Designed to meet European L/AM category motorcycle standards.

Braking System:

Hydraulically operated disc brakes front and rear for effective stopping power.

Lighting:

Full lighting system including headlamp, tail lamp, brake lights, and turn signals.

Chassis Design:

Steel twin-spar frame for rigidity and predictable handling.

Tires:

Sport-oriented tire sizes (e.g., 110/70-17 front, 130/70-17 rear).

💡 Technology Features

Instrument Cluster:

Analog tachometer, speedometer, odometer, trip meter, coolant temperature warning light, neutral indicator, turn signal indicators.

ABS:

Not typically equipped with ABS on this model.

Connectivity Features:

None (basic mechanical and electrical systems).

🔧 Maintenance

Oil Change:

Every 3,000 km or annually (engine oil; not gearbox oil).

Air Filter:

Check every 3,000 km, clean or replace as needed.

Spark Plug:

Replace every 6,000 km or as per manual recommendation (e.g., NGK BR9EG).

Chain Lubrication:

Every 500 km and after washing or riding in rain.

Coolant Type:

Ethylene glycol-based coolant with anti-corrosion additives (50% concentration with distilled water).

Brake Fluid:

DOT 4 brake fluid.

Common Problems:

Carburetor jetting issues, electrical connector corrosion, clutch wear with aggressive use, exhaust valve sticking (if applicable to specific variants).

Maintenance Focus:

Importance of proper two-stroke oil mixture, regular carburetor cleaning, and correct gear oil changes.

📚 Vehicle History

Brand Origin:

Aprilia is an Italian manufacturer with a strong racing heritage, founded in 1945.

Rs50 Lineage:

The RS50 has been a popular entry-level sportbike for decades, known for its race-replica styling and performance in its class. The 2006 model represents a specific iteration within its development, often featuring Euro 2 emissions compliance.

Manufacturing Location:

Primarily manufactured in Italy.

🏆 Awards & Recognition

Motorcycle Class Awards:

The Aprilia RS50 has historically received acclaim within the 50cc sportbike category for its performance and styling, often winning comparisons against direct competitors.

Owner Satisfaction:

Generally high owner satisfaction due to its sporty nature and relative ease of maintenance for experienced users.