🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1998 Codes Chassis Code: RS 250 MK II Generation Generation: MK II (second generation of RS250) 📋 Manual Details Coverage Areas Coverage: Comprehensive repair, maintenance, and adjustment procedures for the 1998 Aprilia RS250. Page Count Pages: Not specified in product description. Manual Type Type: Factory Service Repair Manual Language Language: Not specified in product description (likely English given typical market). Format Format: Not specified in product description (likely printed or digital PDF). ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, V-twin Displacement: 249 cc (15.2 cu in) Bore X Stroke: 54.0 x 54.5 mm (2.13 x 2.15 in) Valves Per Cylinder: 2 (reed valve induction) Compression Ratio: 7.1:1 Ignition System: Electronic ignition Lubrication: Oil injection Performance Horsepower: 70.7 hp @ 11,000 rpm (claimed) Torque: 26.7 lb-ft @ 10,500 rpm (claimed) Fuel System Carburetion: 2 x Mikuni TM30 flat-slide carburetors Fuel Capacity: 16 L (4.2 US gal) 🔧 Transmission Standard Transmission Type: 6-speed sequential Features Clutch: Wet multi-plate Final Drive: Chain 📐 Dimensions Exterior Length: 2010 mm (79.1 in) Width: 735 mm (28.9 in) Height: 1165 mm (45.9 in) Wheelbase: 1375 mm (54.1 in) Seat Height: 810 mm (31.9 in) Weights Dry Weight: 139 kg (306.4 lbs) Wet Weight: Not specified in product description. 🛡️ Safety Features Features Brakes Front: Dual 320 mm discs, 4-piston calipers Brakes Rear: 220 mm disc, 2-piston caliper Suspension Front: Telescopic forks, adjustable preload and rebound damping Suspension Rear: Monoshock, adjustable preload, compression, and rebound damping Tires Front: 120/60-17 Tires Rear: 160/60-17 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific mileage/time intervals. Spark Plug Replacement: Refer to manual for specific mileage/time intervals. Chain Maintenance: Regular cleaning, lubrication, and adjustment as per manual. Fluid Specifications Engine Oil Type: 2-stroke premix or oil injection system (refer to manual for specific grades like SAE 10W-40 or JASO FD rated). Coolant Type: Ethylene glycol-based coolant (50/50 mix with distilled water). Brake Fluid Type: DOT 4 Fork Oil Type: Viscosity and level specified in manual (typically SAE 5W or 10W).