🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 1993 Product Name: Aprilia RS125 RS125 1993 Service Repair Workshop Manual 👋 Introduction Market Position Positioning: The Aprilia RS125 (Rotax 123 engine variant) of the early 1990s was a highly regarded sportbike in its class, known for its performance, handling, and race-derived styling. This manual caters to owners and technicians seeking in-depth knowledge for maintaining and repairing this specific model. Competitive Analysis Competitors: Competed against models like the Yamaha TZR125, Honda NSR125, and Cagiva Mito 125, all vying for the lightweight sportbike market share. Key Features Manual Value Proposition: Provides factory-level information essential for preserving the performance and longevity of the 1993 Aprilia RS125, covering all critical mechanical and electrical aspects. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Page Count Estimated Pages: N/A (typical workshop manuals are extensive, often 300+ pages) Manual Type Type: Workshop Manual / Service Manual / Repair Manual Language Language: English (presumed based on typical sales) Format Format: Digital (PDF - presumed for modern sales, though original might be print) 📖 Manual Coverage Systems Covered Engine: Engine overhaul, top-end rebuild, bottom-end components, cooling system, lubrication system, fuel system, ignition system, exhaust system. Transmission: Gearbox inspection and repair, clutch operation and maintenance, gear shift mechanism. Chassis: Frame inspection and repair, front suspension (forks), rear suspension (monoshock), steering system, wheel bearings, brake system (front and rear), brake fluid bleeding, brake caliper overhaul. Electrical: Wiring diagrams, lighting system, ignition system components, battery, starter motor, charging system, instrument cluster, fuses and relays. Bodywork: Fairing removal and installation, seat, fuel tank, body panel fitment, maintenance access. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug replacement, brake pad replacement, coolant checks and changes. Repair: Engine component replacement, carburetor tuning and rebuild, suspension adjustments, brake caliper servicing, electrical component testing and replacement. Troubleshooting: Diagnostic charts for common problems, symptom-based fault finding, electrical system troubleshooting, engine performance issues. Technical Depth Depth: Comprehensive (suitable for professional mechanics and experienced enthusiasts), covering routine maintenance to full engine rebuilds and complex system diagnostics. 📊 Manual Specifications File Format Digital Format: PDF (searchable text, printable pages) Print Quality Print Quality Digital: High resolution scans or digital native content, clear diagrams and text. Binding Type Binding Type Original: Spiral-bound or perfect-bound (for physical copies) Paper Type Paper Type Original: Durable, oil-resistant paper stock (for physical copies) ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, 2-stroke, liquid-cooled Engine Code: Rotax 123 (common for this era RS125) Bore X Stroke: 54 mm x 54.5 mm Displacement: 125 cc Compression Ratio: Approx. 8.5:1 to 9.0:1 (variant dependent) Performance Horsepower: Approx. 28-34 hp (derestricted) at 10,500 RPM (regionally variable, often restricted for licensing) Torque: Approx. 17-19 Nm at 9,000 RPM Fuel System Carburetor: Dell'Orto PHBH 28 AS (or similar specification) Fuel Type: Unleaded gasoline (minimum 95 RON recommended) Oil Mixture: Pre-mix or automatic oil injection (check system type covered by manual) Cooling System Cooling Type: Liquid-cooled Coolant Capacity: Approx. 1.2 liters Ignition System Ignition Type: Electronic CDI (Capacitor Discharge Ignition) Spark Plug: NGK BR9EG or similar (check manual for specific recommendations) Exhaust System Exhaust Type: Expansion chamber, 2-stroke performance exhaust 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Clutch Type: Wet, multi-plate Gear Ratios: Specific ratios available in manual, crucial for performance tuning. Features Final Drive: Chain drive, typically 13/48 gearing (stock, tunable) Transmission Oil Type: SAE 75W/90 or SAE 80W/90 API GL-4 (check manual for exact spec and capacity) 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 700 mm Height: Approx. 1135 mm Wheelbase: Approx. 1350 mm Weights Dry Weight: Approx. 130 kg Wet Weight: Approx. 140 kg (with fluids) Fuel Capacity Fuel Tank Capacity: Approx. 14 liters (including 2.5L reserve) Wheels Front Wheel Size: 3.00 x 17 inch Rear Wheel Size: 4.00 x 17 inch Tires Front Tire Size: 110/70-17 Rear Tire Size: 150/60-17 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle safety standards vary by region and era; manual focuses on mechanical safety) Active Features Braking System: Hydraulic disc brakes front and rear. Front typically twin-piston caliper, rear single-piston caliper. Brake Disc Diameter Front: 260 mm (typical) Brake Disc Diameter Rear: 220 mm (typical) Passive Features Frame Construction: Aluminum alloy twin-spar frame (derived from racing technology). 💡 Technology Features Infotainment Infotainment System: N/A (Basic analog instrumentation: speedometer, tachometer, odometer, coolant temperature warning light). Driver Assistance Driver Assistance Features: N/A (No electronic rider aids common on modern motorcycles). 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 km or annually (refer to manual for exact recommendation). Spark Plug Replacement: Every 5,000-7,500 km (depending on plug type and usage). Air Filter Cleaning: Every 2,000-4,000 km or as needed based on riding conditions. Brake Fluid Change: Every 1-2 years or as per manual recommendation. Coolant Flush: Every 2 years. Fluid Specifications Engine Oil: 2-stroke synthetic...