🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 2006 Product Type: Full Service Repair Manual Codes Model Code Variant 2006: RS 125 (2006 Model) 👋 Introduction Market Position Segment: Lightweight sportbike, performance-oriented entry-level motorcycle. Target Audience: Enthusiasts seeking to maintain and enhance their Aprilia RS 125, DIY mechanics, performance tuners. Competitive Analysis Competitors 2006: Yamaha YZF-R125 (introduced later, but similar segment), Cagiva Mito 125, Honda CBR125R. Key Features Vehicle Styling: Aggressive, race-inspired 'superbike' styling. Engine Type: High-performance two-stroke, single-cylinder engine. Handling: Renowned for sharp handling and agile chassis dynamics. Key Features Manual Value Proposition: Empowers owners with the knowledge to perform a wide range of maintenance and repair tasks, saving on labor costs and extending the life of the motorcycle. Completeness: Designed to be the definitive guide for all service and repair needs. 📋 Manual Details Coverage Areas Engine Coverage: Complete engine overhaul, rebuilding, tuning, carburetor adjustment, fuel system diagnosis. Transmission Coverage: Clutch inspection and replacement, gearbox disassembly and reassembly, shift mechanism. Chassis Coverage: Frame inspection, suspension tuning, steering head bearing maintenance, wheel and tire service. Electrical Coverage: Wiring diagrams, battery maintenance, ignition system, lighting, starter motor, sensors. Braking System Coverage: Brake caliper servicing, hydraulic system bleeding, pad replacement, disc inspection. Bodywork Coverage: Fairing removal and installation, seat maintenance, accessory fitting. Troubleshooting Coverage: Diagnostic procedures for common faults, fault code interpretation (if applicable), step-by-step repair guides. Page Count Estimated Pages: Comprehensive (Actual page count not specified, but implied to be extensive). Manual Type Type: Service and Repair Manual Language Language: English Format Format: Digital (Likely PDF, as common for online sales) 📖 Manual Coverage Systems Covered Engine Mechanical: Cylinder, piston, crankshaft, connecting rod, valve train, timing. Fuel And Emissions: Carburetor model identification, jetting specifications, fuel pump operation, exhaust system. Cooling System: Radiator, fan operation, coolant flow, thermostat. Ignition System: CDI unit, spark plug specifications, coil, stator. Lubrication System: Oil pump operation, oil mixture ratios for 2-stroke oil injection. Clutch System: Wet multi-plate clutch, clutch lever adjustment, clutch cable replacement. Gearbox And Drivetrain: Gear selection, gear ratios, chain and sprocket maintenance. Front Suspension: Telescopic forks, oil levels, spring rates, seal replacement. Rear Suspension: Monoshock absorber, linkage system, pre-load adjustment. Steering System: Handlebar replacement, steering head bearings, fork alignment. Front Brakes: Dual disc setup, brake fluid type and capacity, caliper service. Rear Brakes: Single disc setup, brake fluid type and capacity, caliper service. Wheels And Tires: Wheel bearing maintenance, tire pressure recommendations, wheel balancing. Electrical Components: Battery specifications, headlight, taillight, turn signals, horn, dashboard instrumentation. Wiring Diagrams: Detailed electrical schematics for all systems. Procedures Included Routine Maintenance: Oil changes, filter replacements, chain lubrication, spark plug checks, coolant checks. Major Repairs: Engine rebuilds, transmission overhauls, suspension component replacement, electrical system diagnostics. Troubleshooting Steps: Systematic diagnosis of performance issues, starting problems, electrical faults. Carburetor Tuning: Idle speed adjustment, mixture screw settings, main jet and pilot jet selection. Brake System Maintenance: Bleeding procedure, pad and disc replacement, caliper cleaning. Suspension Setup: Fork oil viscosity and level adjustment, shock absorber damping and preload settings. Electrical Troubleshooting: Fault finding using wiring diagrams, testing components like coils, switches, and sensors. Bodywork Repair: Panel removal, installation, and alignment. Technical Depth Depth: Comprehensive from basic maintenance to full engine and transmission rebuilds. Detail Level: Includes torque specifications, clearances, diagnostic charts, and detailed exploded views. 📊 Manual Specifications File Format Digital Format: PDF Searchability: Searchable text content for quick information retrieval. Print Quality Image Resolution: High-resolution images and diagrams for clarity. Binding Type Binding: N/A (Digital format) Paper Type Paper Quality: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, single-cylinder, liquid-cooled, reed valve induction. Bore X Stroke: 54 mm x 54.5 mm (typical for Rotax 122 engine variant). Displacement: 124.8 cc Compression Ratio: 12.5:1 (approx.) Power Output Hp: Approx. 33-34 HP at 11,750 rpm (depending on market and tuning). Torque Nm: Approx. 20 Nm at 10,500 rpm (depending on market and tuning). Performance Top Speed Kph: Approx. 150-160 kph (depending on rider and conditions). Fuel System Carburetor Model: Dell'Orto VHST 28 (or similar Dell'Orto carb). Fuel Delivery: Gravity feed with electric oil injection for 2-stroke mix. Fuel Type: Unleaded gasoline, minimum 95 RON (octane). 2 Stroke Oil Type: High-quality synthetic 2-stroke racing oil. 🔧 Transmission Standard Transmission Type: 6-speed constant mesh, sequential gearbox. Clutch Type: Wet, multi-plate, cable-actuated. Features Gear Ratios: Specific gear ratios will be detailed in the manual for optimal performance tuning. Final Drive: Chain drive, typically 17/40 or similar ratio (subject to regional variations). 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 700 mm Height: Approx. 1135 mm Wheelbase: Approx. 1375 mm Weights Dry Weight: Approx. 130 kg Curb Weight: Approx. 142 kg (with all fluids). Cargo Fuel Tank Capacity: Approx. 10.5 Liters 🛡️ Safety Features Ratings Safety Certification: Meets relevant European type approval standards for its class. Active Features Braking System:...
Renowned for sharp handling and agile chassis dynamics.
Key Features Manual
Value Proposition:
Empowers owners with the knowledge to perform a wide range of maintenance and repair tasks, saving on labor costs and extending the life of the motorcycle.
Completeness:
Designed to be the definitive guide for all service and repair needs.
📋 Manual Details
Coverage Areas
Engine Coverage:
Complete engine overhaul, rebuilding, tuning, carburetor adjustment, fuel system diagnosis.
Transmission Coverage:
Clutch inspection and replacement, gearbox disassembly and reassembly, shift mechanism.
Chassis Coverage:
Frame inspection, suspension tuning, steering head bearing maintenance, wheel and tire service.
54 mm x 54.5 mm (typical for Rotax 122 engine variant).
Displacement:
124.8 cc
Compression Ratio:
12.5:1 (approx.)
Power Output Hp:
Approx. 33-34 HP at 11,750 rpm (depending on market and tuning).
Torque Nm:
Approx. 20 Nm at 10,500 rpm (depending on market and tuning).
Performance
Top Speed Kph:
Approx. 150-160 kph (depending on rider and conditions).
Fuel System
Carburetor Model:
Dell'Orto VHST 28 (or similar Dell'Orto carb).
Fuel Delivery:
Gravity feed with electric oil injection for 2-stroke mix.
Fuel Type:
Unleaded gasoline, minimum 95 RON (octane).
2 Stroke Oil Type:
High-quality synthetic 2-stroke racing oil.
🔧 Transmission
Standard
Transmission Type:
6-speed constant mesh, sequential gearbox.
Clutch Type:
Wet, multi-plate, cable-actuated.
Features
Gear Ratios:
Specific gear ratios will be detailed in the manual for optimal performance tuning.
Final Drive:
Chain drive, typically 17/40 or similar ratio (subject to regional variations).
📐 Dimensions
Exterior
Length:
Approx. 1950 mm
Width:
Approx. 700 mm
Height:
Approx. 1135 mm
Wheelbase:
Approx. 1375 mm
Weights
Dry Weight:
Approx. 130 kg
Curb Weight:
Approx. 142 kg (with all fluids).
Cargo
Fuel Tank Capacity:
Approx. 10.5 Liters
🛡️ Safety Features
Ratings
Safety Certification:
Meets relevant European type approval standards for its class.
Active Features
Braking System:
Dual front disc brakes with 4-piston calipers, single rear disc brake.
Suspension Performance:
Performance-oriented suspension for stability and control.
Passive Features
Lighting:
Halogen headlight, LED taillight (typical for the era).
Ergonomics:
Sportbike riding position designed for aerodynamic efficiency and rider control.
💡 Technology Features
Infotainment
Infotainment System:
N/A (This model predates integrated infotainment systems; focuses on core motorcycle functionality).
Driver Assistance
Rider Aids:
No electronic rider aids like ABS or traction control standard on this model. Focus is on direct rider input.
Instrumentation
Dashboard Type:
Analog tachometer and speedometer, with indicator lights for turn signals, high beam, neutral, oil level, and engine warning (if equipped).
🔧 Maintenance
Service Intervals
Oil Change Interval:
Refer to manual for specific intervals, but typically every 3,000-5,000 km or annually.
Spark Plug Check Replace:
Check every 3,000 km, replace as needed based on condition and gap.
Chain Maintenance:
Lubricate and adjust chain tension every 500-1,000 km, or more frequently in adverse conditions.
Coolant Check:
Check coolant level regularly, top up as needed. Flush and replace coolant every 2 years.
Brake Fluid Change:
Replace brake fluid every 2 years, or if contaminated.
Fluid Specifications
Engine Oil Type 4 Stroke:
N/A (This is a 2-stroke motorcycle with oil injection).
Transmission Oil:
Refer to manual for specific grade, likely SAE 75W/90 or similar gear oil. Capacity around 0.8-1.0 Liters.
Fork Oil Type:
Refer to manual for specific viscosity and grade, typically SAE 5W or 10W suspension fluid. Capacity around 400-450 ml per fork leg.
Coolant Type:
Ethylene glycol-based antifreeze mixture with distilled water (50/50 ratio).
Brake Fluid Type:
DOT 4 recommended for hydraulic brake systems.
Known Issues
2 Stroke Engine Wear:
High-performance 2-stroke engines can be sensitive to poor maintenance, leading to premature piston/cylinder wear if not properly lubricated and decarbonized.
Carburetor Issues:
Carburetors can become clogged with age and inconsistent fuel quality, affecting performance and idle stability.
Electrical Connections:
Corrosion or loose connections in the wiring harness can lead to intermittent electrical faults.
Suspension Seals:
Front fork seals can degrade over time, leading to oil leaks.
📚 Vehicle History
Brand Heritage
Heritage Focus:
Aprilia has a strong heritage in racing, particularly in the 125cc Grand Prix class, which heavily influences their road-going models like the RS 125.
Model Evolution
Predecessors:
The RS 125 lineage dates back to the early 1990s, evolving through various chassis and engine updates.
Key Updates 2006:
While the 2006 model represents a mature iteration of the RS 125 platform, it benefitted from ongoing refinements in engine management, suspension components, and aesthetics from earlier generations.
Production
Manufacturing Location:
Italy
Production Period Impact:
The RS 125 was a highly popular model in Europe and other markets, known for its premium feel and performance in the 125cc segment.
🏆 Awards & Recognition
Recognitions
Segment Recognition:
Widely recognized in its segment for performance, handling, and race-replica styling.
Enthusiast Following:
Cult following among young riders and enthusiasts who appreciate its character and racing pedigree.
Ratings
Magazine Reviews Typical:
Consistently received positive reviews for its agility, powerful (for its class) two-stroke engine, and authentic supersport appearance.