🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 1996 Codes Model Code: RS 125 (Rotax 122) 👋 Introduction Market Position Segment: Lightweight Supersport Motorcycle Target Audience: Enthusiast owners, DIY mechanics, aspiring racers Competitive Analysis Key Competitors: Yamaha YZF-R125 (later models), Honda CBR125R (later models), Suzuki GSX-R125 (later models), Cagiva Mito 125 Key Features Performance Orientation: Track-inspired design and performance, lightweight agility Engine Type: Two-stroke, liquid-cooled, single-cylinder performance engine 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Maintenance, Rebuild, Refurbish, Restoration Page Count Estimated Page Count: 300+ Manual Type Type: Full Service & Repair Manual Language Language: English (assumed, based on product description format) Format Format: Digital (PDF likely, given common availability for older manuals) 📖 Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, tuning, troubleshooting Fuel System: Carburetor (Dell'Orto PHBH 28 AS) tuning, cleaning, rebuilding; fuel tank and lines Cooling System: Radiator, fan, hoses, coolant specifications and replacement Exhaust System: Expansion chamber analysis, cleaning, and maintenance Transmission: Clutch operation, gear selection mechanism, gearbox lubrication and overhaul Chassis: Frame inspection, steering head bearings, swingarm and linkage maintenance Suspension Front: Front fork (upside-down, Marzocchi) disassembly, seal replacement, oil specification, damping adjustments Suspension Rear: Monoshock absorber (Sachs or similar) service, linkage lubrication, spring preload adjustment Braking System Front: Brake caliper, master cylinder, brake line service, pad replacement, fluid bleeding Braking System Rear: Brake caliper, master cylinder, brake line service, pad replacement, fluid bleeding Electrical System: Wiring diagrams, lighting, ignition system (CDI), battery maintenance, starter motor Bodywork: Fairing removal and installation, seat, fuel tank mounting, panel fitment Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment, spark plug servicing Troubleshooting: Diagnostic procedures for common starting, running, and electrical issues Engine Rebuild: Piston, cylinder, crankshaft, and bearing replacement and assembly Carburetor Rebuild: Complete disassembly, cleaning, and reassembly of Dell'Orto PHBH 28 AS Suspension Service: Front fork seal and oil replacement, rear shock service Brake System Service: Bleeding, pad replacement, caliper servicing Electrical Diagnostics: Wiring diagram interpretation, component testing Bodywork Repair: Panel alignment, minor cosmetic repairs Technical Depth Depth: Comprehensive: from basic maintenance to full engine and gearbox rebuilds 📊 Manual Specifications File Format Digital Format: PDF (speculated) Print Quality Print Quality: High-resolution (for digital, enabling clear viewing of diagrams) Binding Type Binding: N/A (for digital) Paper Type Paper: N/A (for digital) ⚙️ Engine Specifications Primary Engine Engine Type: Rotax 122, 2-stroke, liquid-cooled, single-cylinder Displacement: 125 cc Bore X Stroke: 54 mm x 54.5 mm Power Output Hp: ~30-33 hp @ 9,000 rpm (restricted and unrestricted variants exist) Torque: ~20 Nm @ 8,000 rpm (estimated) Compression Ratio: 12.4:1 Valvetrain: Reed valve induction; power valve system (APCS - Aprilia Performance Catalytic System) Fuel System Carburetor: Dell'Orto PHBH 28 AS Fuel Type: Unleaded gasoline (RON 95 or higher) Lubrication Mixture System: Automatic oil injection system 2-Stroke Oil Spec: JASO FD or API TC compliant 2-stroke synthetic oil 🔧 Transmission Standard Type: 6-speed sequential manual Clutch: Wet multi-plate Final Drive: Chain driven (e.g., 16T front sprocket, 42T rear sprocket, 520 chain) Features Gear Ratios: 1st: 2.769 (36/13), 2nd: 1.933 (29/15), 3rd: 1.471 (25/17), 4th: 1.176 (20/17), 5th: 1.050 (21/20), 6th: 0.957 (22/23) (Typical values, may vary slightly) Transmission Oil Spec: API GL-4 SAE 80W/90 (or equivalent 2-stroke gearbox oil) Transmission Oil Capacity: Approx. 0.75 Liters 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 710 mm Height: Approx. 1050 mm Wheelbase: Approx. 1345 mm Weights Dry Weight: Approx. 124 kg Curb Weight: Approx. 135 kg (with fluids) Max Load Capacity: Approx. 160 kg (rider + passenger + luggage) Capacities Fuel Tank Capacity: 13 Liters (including 3L reserve) Coolant Capacity: Approx. 1.5 Liters Wheels Tires Front Wheel Size: 17 inch Rear Wheel Size: 17 inch Front Tire Spec: 110/70-17 Rear Tire Spec: 150/60-17 Wheel Bolt Pattern: N/A (typical for motorcycles, hub-mounted) 🛡️ Safety Features Ratings Crash Testing: N/A (Motorcycle safety is assessed differently than cars, typically focusing on structural integrity and component failure) Active Features Braking System: Hydraulic disc brakes front and rear Front Brake Spec: Single 320 mm disc, 4-piston caliper (e.g., Brembo) Rear Brake Spec: Single 220 mm disc, 2-piston caliper Passive Features Frame Construction: Aluminum alloy twin-spar perimeter frame Lighting System: Halogen headlight, LED taillight (typical for the era) 💡 Technology Features Infotainment Dashboard Instruments: Analog speedometer, tachometer, fuel gauge, coolant temperature gauge, indicator lights. Driver Assistance ABS: Not equipped Connectivity Bluetooth Usb: Not equipped 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 km, or annually, depending on usage. Spark Plug Replacement: Every 6,000-10,000 km (check for specific plug type and gap) Chain Lubrication Adjustment: Every 500-1,000 km, or after riding in wet conditions. Air Filter Cleaning Replacement: Every 3,000-6,000 km, or as needed based on operating environment. Coolant Flush Replacement: Every 2 years or 20,000 km. Fluid Specifications Brake Fluid Type: DOT 4 Coolant Type: Ethylene glycol-based coolant, mix 50/50...