🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1994-1998 Generation Generation: First Generation Codes Engine Code Prefix: GS 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Electrical System: Yes Chassis: Yes Suspension: Yes Brakes: Yes Fuel System: Yes Cooling System: Yes Exhaust System: Yes Bodywork: Yes Troubleshooting: Yes Diagnostic Procedures: Yes Maintenance Schedule: Yes Torque Specifications: Yes Page Count Approximate Pages: 300-400 Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Downloadable PDF ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, V-twin Displacement: 249 cc (15.2 cu in) Bore X Stroke: 54 mm x 54.5 mm (2.13 in x 2.15 in) Compression Ratio: 7.1:1 Valve Arrangement: Reed valve intake Performance Horsepower: Approx. 70 hp @ 11,000 rpm Torque: Approx. 27.5 lb-ft @ 10,500 rpm Fuel System Carburetion: 2 x Mikuni TMR32 flat-slide carburetors Fuel Type: Unleaded gasoline (95 RON recommended) Fuel Tank Capacity: 16 L (4.2 US gal) Lubrication Lubrication System: Pre-mix or Oil Injection Ignition Ignition Type: Digital CDI 🔧 Transmission Standard Gearbox: 6-speed constant mesh Features Clutch: Wet, multi-plate Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1995 mm (78.5 in) Width: Approx. 730 mm (28.7 in) Height: Approx. 1140 mm (44.9 in) Wheelbase: Approx. 1375 mm (54.1 in) Weights Dry Weight: Approx. 141 kg (311 lbs) Wet Weight: Approx. 155 kg (342 lbs) 🛡️ Safety Features Features Front Brakes: Dual 320 mm discs with 4-piston calipers Rear Brakes: 240 mm disc with 2-piston caliper Front Suspension: Inverted telescopic forks (Showa) Rear Suspension: Monoshock with adjustable preload and rebound damping Tires Front: 120/70ZR17 Tires Rear: 160/60ZR17 🔧 Maintenance Service Intervals First Service Km: 1000 km Subsequent Service Km: 6000 km Fluid Specifications Engine Oil Type: 2-stroke engine oil (JASO FD or TCW-3 recommended) Coolant Type: Ethylene glycol based coolant (50/50 mix with distilled water) Brake Fluid Type: DOT 4 Fork Oil Viscosity: Approx. SAE 10W Chain Lube Type: Specific chain lubricant