🏷️ Basic Information Identification Make: Aprilia Model: RS4 50 Year: 2011-2015 Generation Generation: First Generation 📋 Manual Details Coverage Areas Coverage: Complete workshop service and repair Repair Procedures: A-Z, all service and repair procedures Page Count Page Count: Not Specified (Comprehensive) Manual Type Manual Type: Workshop Service Repair Manual Format: Downloadable PDF Language Language: English Format Delivery: Instant Email Delivery Compatibility: PC, MAC, Tablets, Smartphones Required Software: Adobe Reader ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, 2-stroke Displacement: 49.9 cc Cooling System: Liquid-cooled Performance Horsepower: Approximately 5-6 HP (Varies by specific model year and region) Top Speed: Governed by local regulations for 50cc class (typically around 70-80 km/h) Fuel System Fuel Delivery: Carburetor Carburetor Model: Dell'Orto PHVA 17.5 (Typical) Ignition Ignition System: Electronic ignition 🔧 Transmission Standard Transmission Type: 6-speed manual Clutch: Wet multi-plate clutch Features Gearbox Operation: Constant mesh 📐 Dimensions Weights Dry Weight: Approximately 110-115 kg (Varies by specific model year) 🛡️ Safety Features Features Braking System Front: Hydraulic disc brake Braking System Rear: Hydraulic disc brake Front Suspension: Upside-down telescopic fork Rear Suspension: Monoshock absorber with adjustable preload Lighting: Halogen headlight, LED taillight 🔧 Maintenance Service Intervals Oil Change Interval: Refer to Manual (Typically every 2,000-3,000 km for 2-stroke mix or gearbox oil) Spark Plug Replacement: Refer to Manual Air Filter Cleaning: Refer to Manual Fluid Specifications Engine Oil: 2-stroke pre-mix (Specific ratio and type in manual) Gearbox Oil Type: API GL-4 SAE 80W/90 (Typical) Coolant Type: Ethylene glycol-based coolant (Specific mixture ratio in manual) Brake Fluid Type: DOT 4 Gearbox Oil Capacity: Refer to Manual