🏷️ Basic Information Identification Make: Aprilia Model: V990 Engine Year: Not Specified (Covers V990 Engine Family) Codes Engine Code: V990 📋 Manual Details Coverage Areas Coverage Areas: Engine Repair, Maintenance, Disassembly, Assembly, Cleaning, Reinstallation Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: PDF Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinZip Compatibility Operating Systems: All Versions of Windows & Mac Features Printability: Full Printable Zoom Functionality: Zoom IN/OUT ⚙️ Engine Specifications Primary Engine Engine Type: V-Twin (90-degree) Displacement: 990 cc Bore: Not Specified (Commonly 97 mm for V990) Stroke: Not Specified (Commonly 68 mm for V990) Valve Train: DOHC (Double Overhead Camshafts), 4 valves per cylinder Cooling System: Liquid-cooled Performance Horsepower: Not Specified (Typically 110-130+ HP depending on application) Torque: Not Specified (Typically 95-105 Nm depending on application) Fuel System Fuel Delivery: Fuel Injection (EFI) Throttle Body Size: Not Specified (Commonly 54 mm for V990) Lubrication Oil System: Wet Sump / Dry Sump (Model Dependent) Ignition Ignition Type: Electronic Ignition Spark Plugs: Not Specified (Manufacturer Recommended) Exhaust Exhaust System Type: Not Specified (Usually Dual Exit) 🔧 Transmission Standard Transmission Type: Not Specified (Likely 6-speed Sequential Manual Gearbox in applications) Features Clutch Type: Not Specified (Likely Wet Multi-Plate Clutch) 🛡️ Safety Features Ratings Target Audience: Professional Technicians, DIY Mechanics with basic knowledge Features Repair Guidance Level: Step-by-step procedures, critical specifications, illustrations Diagnostic Information: Implied (for troubleshooting and repair) Warning Advisory: Avoid complicated repairs without basic knowledge; never service without a manual. 🔧 Maintenance Service Intervals Oil Change Interval: Refer to Manual (Typical: 5,000-7,500 km or 1 year) Spark Plug Replacement: Refer to Manual (Typical: 10,000-15,000 km) Valve Adjustment Interval: Refer to Manual (Typical: 20,000-30,000 km) Fluid Specifications Engine Oil Type: Refer to Manual (Typically Synthetic 10W-40 or 15W-50) Engine Oil Capacity: Not Specified (Refer to Manual) Coolant Type: Refer to Manual (Typically Ethylene Glycol-based) Brake Fluid Type: Refer to Manual (Typically DOT 4) Clutch Fluid Type: Refer to Manual (Typically DOT 4, if hydraulic) 📄 Vehicle Context Application Common Vehicle Models: Aprilia RSV Mille, Tuono, Falco, ETV Caponord (Varying Years) Engine Design Engine Orientation: Longitudinal V-Twin Camshaft Drive: Chain Driven Fueling Strategy: Dual Injectors per cylinder (common for V990 variants) Power Delivery: Known for strong mid-range torque and top-end power