🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 2002 Engine Variant: Likely uses the Rotax 123 series engine, known for its use in various Aprilia models and its potent two-stroke performance. 👋 Introduction Market Position Market Position: The Aprilia RS125 is a highly regarded lightweight sportbike known for its performance, sharp handling, and racing-inspired aesthetics. This manual targets owners and mechanics seeking to maintain and repair this iconic model. Target Audience: DIY enthusiasts, home mechanics, and professional motorcycle repair shops working on the 2002 Aprilia RS125. Competitive Analysis Competitive Analysis: Competes in the highly contested 125cc supersport segment, often against models from Yamaha (YZF-R125), Honda (CBR125R), and KTM (RC125). The RS125 is distinguished by its potent Rotax 125cc two-stroke engine and premium chassis components. Key Features Key Features: Factory-accurate repair procedures, exploded diagrams, detailed specifications, troubleshooting guidance, comprehensive coverage of all major systems, instant download availability. Download Benefit: Instant download availability saves time and eliminates postage and packaging costs. 📋 Manual Details Coverage Areas Coverage Areas: General Information, Routine Maintenance, Lubrication, Fuel System, Cooling System, Engine, Chassis, Electrical System, Troubleshooting Information, and More Page Count Page Count: Not specified, but described as 'complete' and covering 'every single detail' Manual Type Manual Type: Factory Service Repair Workshop Manual Manual Purpose: Designed for both novice DIY mechanics and experienced professionals to ensure correct and efficient completion of repair and maintenance tasks. Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Systems Covered: Engine (internal components, tuning, diagnostics), Fuel System (carburetor, fuel pump, fuel lines), Cooling System (radiator, coolant flow, water pump), Electrical System (ignition, lighting, charging system, wiring diagrams), Chassis (frame, suspension, steering, wheels, brakes), Lubrication System, General Information, Routine Maintenance Procedures. Cooling System Coverage: Detailed information on the liquid cooling system, including radiator service, coolant types and capacities, water pump inspection and repair, thermostat operation, and hose replacement. Chassis Coverage: Covers front fork (telescopic, possibly upside-down depending on trim), rear monoshock suspension, steering head bearings, wheel bearings, brake system components (master cylinders, calipers, lines, pads, discs), and frame integrity checks. Electrical System Coverage: Includes comprehensive wiring diagrams, ignition system components (CDI, coil, stator), lighting system (headlight, tail light, turn signals), battery maintenance, charging system diagnosis, and fuse identification. Fuel System Coverage: Detailed diagrams and procedures for the fuel tank, fuel lines, fuel filter, and carburetor adjustments, including idle speed, mixture, and float height. Procedures Included Procedures Included: Step-by-step repair instructions, disassembly and reassembly procedures, diagnostic troubleshooting guides, routine maintenance tasks, component replacement, adjustments, and detailed illustrations. Engine Repair Procedures: Complete engine disassembly, cylinder head and piston removal/installation, crankshaft and connecting rod inspection, valve clearance adjustment (if applicable for 4-stroke variants, though RS125 is 2-stroke), carburetor overhaul, and exhaust system service. Troubleshooting Procedures: Systematic approach to diagnosing common problems like starting issues, poor running conditions, electrical faults, and braking system inefficiencies, with clear diagnostic flowcharts and expected readings. Technical Depth Technical Depth: Comprehensive, covering everything from basic maintenance and adjustments to complete engine rebuilds, advanced troubleshooting, and detailed component repair, suitable for both novice DIY enthusiasts and experienced mechanics. Diagram Quality: High-quality diagrams and exploded views provided to illustrate repair procedures and component relationships. 📊 Manual Specifications File Format File Format: PDF Compatibility: Compatible with all versions of Windows and Mac operating systems. Requirements: Requires Adobe PDF Reader and WinZip for file extraction. Print Quality Print Quality: High-quality diagrams and easy-to-read text, printable pages. Printability: All pages are printable, allowing for physical copies in the workshop. Binding Type Binding Type: Digital (PDF), printable format. Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Primary Engine: Rotax 123 (or similar variant for the 2002 model year), 125cc, liquid-cooled, two-stroke, single-cylinder engine. Engine Displacement: 125 cc Engine Type: Two-Stroke Cooling Method: Liquid-Cooled Bore X Stroke Approximate: Around 54 mm x 54.5 mm (typical for Rotax 125 variants). Performance Performance Details: Typically produces around 30-34 HP (depending on regional restrictions and tuning), known for its high-revving nature and strong top-end power. Torque figures are modest, characteristic of a high-performance 125cc two-stroke. Redline Approximate: Typically around 10,000-11,000 RPM, reflecting its high-performance two-stroke nature. Fuel System Fuel System Details: Carburetor fed (commonly a Dell'Orto PHBH 28 or similar), often with a two-stroke oil injection system for automatic lubrication. Carburetor Details: Likely a Dell'Orto PHBH 28 RD or similar, with specific jetting and adjustment procedures detailed. 🔧 Transmission Standard Transmission Type: 6-speed constant mesh manual transmission. Optional Optional Transmission: N/A (All RS125 models feature the 6-speed manual). Features Transmission Features: Wet multi-plate clutch, close-ratio gearing optimized for sport riding. 📐 Dimensions Exterior Exterior Dimensions: Specific dimensions vary slightly by market, but it's a compact sportbike design. Typical length around 1950mm, width around 700mm, height around 1050mm. Weights Dry Weight: Approximately 132 kg (dry). Wet Weight: Approximately 142 kg (with fluids). 🛡️ Safety...