🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1998 Product Type: Repair Service Manual Codes Chassis Code: RM00 📋 Manual Details Coverage Areas Engine: Complete Engine Overhaul, Top End, Bottom End Fuel System: Carburetion, Fuel Pump, Fuel Tank Ignition System: Ignition Timing, Spark Plugs, CDI Unit Cooling System: Radiator, Water Pump, Coolant Exhaust System: Pipes, Silencer Transmission: Gearbox, Clutch, Shifting Mechanism Frame And Bodywork: Chassis, Fairings, Seat Suspension: Front Forks (Showa), Rear Shock Absorber Brakes: Front and Rear Disc Brakes, Brake Lines, Master Cylinders Electrical System: Wiring Diagram, Lights, Battery, Starter Wheels And Tires: Wheel Bearings, Tire Pressures Troubleshooting: Diagnostic Procedures, Common Issues Periodic Maintenance: Scheduled Service Checks Special Tools: Required Tools for Repair Page Count Pages: Approximately 300+ Manual Type Type: Service Manual / Repair Manual Language Language: English Format Format: PDF Download ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, V-twin Displacement: 249.0 cc Bore X Stroke: 54.0 mm x 54.5 mm Compression Ratio: 7.5:1 (±0.3:1) Valvetrain: Reed valve induction Carburetor: 2 x Mikuni TMX30 Flat Slide Lubrication: Premix or Automatic Oil Injection System Performance Horsepower: Approx. 70 HP @ 11,000 RPM (claimed) Torque: Approx. 3.9 kgf-m @ 10,000 RPM (claimed) Fuel System Fuel Delivery: Carburetor Fuel Tank Capacity: 16 Liters 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Clutch Type: Wet, multi-plate Features Gear Ratios: See Manual for specific ratios 📐 Dimensions Exterior Length: Approx. 2010 mm Width: Approx. 720 mm Height: Approx. 1130 mm Wheelbase: Approx. 1375 mm Weights Dry Weight: Approx. 141 kg Wet Weight: Approx. 160 kg (estimated) 🛡️ Safety Features Features Braking System Front: Dual 320 mm discs, 4-piston calipers Braking System Rear: Single 240 mm disc, 2-piston caliper Front Suspension: Showa USD telescopic forks Rear Suspension: Pro-Arm single-sided swingarm with adjustable shock Lighting: Halogen headlight, LED tail light Chassis: Aluminum twin-spar frame 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for 2-stroke oil Spark Plug Replacement: Refer to manual Chain Lubrication: As needed Fluid Specifications Engine Oil: 2-stroke oil (premix or injection) Coolant: Ethylene glycol-based coolant Brake Fluid: DOT 4 Gear Oil: SAE 80W-90 Gear Oil