🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 1994 Codes Chassis Code Indicator: Typically indicated by VIN 👋 Introduction Market Position Motorcycle Segment: Lightweight Sportbike / Entry-level Supersport Competitive Analysis Key Competitors: Yamaha YZF-R125 (later models), Cagiva Mito 125, Honda RS125R (racing derivative), Suzuki GSX-R125 (later models) Key Features Design Philosophy: Performance-oriented 125cc two-stroke, often race-inspired styling. Target Audience: Young riders, track day enthusiasts, those seeking a sporty and engaging riding experience in the 125cc class. Distinctive Attributes: Aggressive styling, potent two-stroke engine for its class, advanced chassis for the era. 📋 Manual Details Coverage Areas Overall Coverage: Full Service Repair Page Count Estimated Page Count: Indeterminate (based on description 'very detailed') Manual Type Type: Service Repair Manual Language Language: Likely English (standard for international markets) Format Format: Digital (PDF implied by typical sales) 📖 Manual Coverage Systems Covered Engine Systems: Top-end, bottom-end, cooling, lubrication, fuel delivery, ignition, exhaust Transmission Systems: Clutch, gearbox, final drive Chassis Systems: Frame, suspension (front/rear), steering, wheels, brakes Electrical Systems: Wiring diagrams, lighting, instruments, battery, charging system, ignition switch Bodywork And Trim: Fairings, seat, fuel tank, body panels, fasteners Procedures Included Maintenance Procedures: Scheduled servicing, fluid changes, filter replacements, chain adjustment, tire pressure checks Repair Procedures: Component disassembly/reassembly, part replacement, sealing, adjustments Troubleshooting: Diagnostic guides, fault finding, common issues and solutions Rebuilding Refurbishment: Engine rebuilds, carburetor overhauls, suspension overhauls, brake system rebuilds Technical Depth Depth Level: Comprehensive: from basic checks to full engine rebuilds and detailed diagnostics. 📊 Manual Specifications File Format Digital Format: PDF (assumed) Print Quality Print Readability: High resolution for clear diagrams and text (typical for quality digital manuals) Binding Type Digital Binding: N/A (Digital) Paper Type Digital Paper Simulation: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, single-cylinder Displacement: 125 cc Bore X Stroke: Typically 54 mm x 54.5 mm (subject to minor variations) Compression Ratio: Approximately 12.0:1 (may vary with specific engine codes) Valvetrain: Rotary disc valve intake, Reed valve induction Performance Horsepower Output: Approx. 30-33 HP at peak RPM (often restricted for learner categories in some markets) Torque Output: Approx. 20-22 Nm at peak RPM (estimated) Redline: Typically around 10,000 - 11,000 RPM Fuel System Carburetor Type: Dell'Orto PHBH 28 (common fitment), or equivalent Fuel Type: Unleaded gasoline, minimum 95 RON Oil Mixing: Premix or Autolube system (check specific model designation) Cooling System Cooling Method: Liquid Cooling Coolant Type: Ethylene glycol based antifreeze mixture (e.g., 50% coolant, 50% distilled water) Lubrication System Engine Oil Type: 2-stroke engine oil, JASO FD or equivalent (for autolube system) 🔧 Transmission Standard Transmission Type: 6-speed constant mesh sequential gearbox Clutch Type: Wet, multi-plate, cable-actuated Features Gear Ratios: Specific ratios documented in the manual (e.g., 1st: 2.833, 2nd: 1.765, 3rd: 1.333, 4th: 1.130, 5th: 0.957, 6th: 0.850) Final Drive: Chain drive (428 or 520 pitch, check manual) Transmission Oil Type: API GL-4 or GL-5, SAE 75W/90 or 80W/90 gear oil (check manual for specific viscosity and capacity) 📐 Dimensions Exterior Length: Approx. 1990 mm (Varies by specific sub-model) Width: Approx. 700 mm (Varies by specific sub-model) Height: Approx. 1080 mm (Varies by specific sub-model) Weights Dry Weight: Approx. 135 kg (Varies by specific sub-model) Fuel Tank Capacity: Approx. 14 Litres (including reserve) Wheels And Tires Front Wheel Size: 17 inch (typically) Rear Wheel Size: 17 inch (typically) Front Tire Size: 110/70-17 (typical) Rear Tire Size: 150/60-17 (typical) Wheelbase: Approx. 1360 mm 🛡️ Safety Features Ratings Safety Certification: CE markings (European Conformity) for production standards. Active Features Braking System Front: Hydraulic disc brake, 2-piston caliper (e.g., Brembo or Grimeca), disc diameter approx. 260mm Braking System Rear: Hydraulic disc brake, 1-piston caliper, disc diameter approx. 220mm Suspension Front: Upside-down (USD) telescopic forks, non-adjustable or pre-load adjustable (model dependent), approx. 40mm stanchion diameter. Suspension Rear: Monoshock absorber with progressive linkage, adjustable pre-load and rebound damping (model dependent). Passive Features Lighting: Halogen headlight, LED or incandescent tail light and indicators (depending on specific variant). 💡 Technology Features Infotainment Instrument Panel: Analog tachometer, speedometer, coolant temperature gauge, indicator lights. Driver Assistance ABS Availability: Not typically available on 1994 models. Connectivity Usb Charging: Not available on 1994 models. 🔧 Maintenance Service Intervals Oil Change Interval Transmission: Every 6,000 - 10,000 km or annually (consult manual) Spark Plug Replacement: Every 3,000 - 5,000 km (dependent on plug type and usage) Air Filter Cleaning/Replacement: Every 3,000 - 6,000 km (depending on conditions) Chain Lubrication Adjustment: Every 500 - 1000 km or after wet rides Fluid Specifications Brake Fluid Type: DOT 4 Coolant Capacity: Approx. 1.0 - 1.2 Litres (consult manual) Known Issues Common Wear Items: Piston rings, exhaust powervalve (carbon buildup), clutch plates, water pump seals, CDI unit failure (age-related). Two Stroke Specific Maintenance: Regular decarbonization of exhaust and powervalve, proper oil/fuel mixture or autolube system function are critical. Electrical Aging: Wiring harness degradation, stator or rectifier...