🏷️ Basic Information Identification Make: Aprilia Model: V990 Codes Engine Code Prefix: V990 👋 Introduction Market Position Target Audience: Aprilia V990 motorcycle owners, independent repair shops, and performance tuners seeking professional-level service information. Competitive Analysis Value Proposition: Offers significant cost savings compared to dealership service. Provides access to factory-level diagnostic and repair information, empowering owners and independent mechanics. Key Features Benefits: Instant download, printable pages, comprehensive A-Z coverage, easy-to-use PDF format, detailed diagrams, and troubleshooting guides. 📋 Manual Details Coverage Areas Engine Variants: All V990 engine configurations as fitted to Aprilia motorcycles from 2001 onwards. Page Count Estimated Pages: Varies by specific model and year, typically 400-800+ pages for comprehensive coverage. Manual Type Type: Service, Repair, and Workshop Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine: Complete V990 engine: top end (cylinder head, valves, camshafts), bottom end (crankshaft, connecting rods, pistons), lubrication system, cooling system, fuel system (injection, throttle bodies), ignition system, exhaust system, starting system, and engine management (ECU, sensors). Chassis: While primarily engine-focused, the manual will likely include relevant chassis elements for engine access and removal, such as exhaust headers, radiators, and engine mounting points. Procedures Included Maintenance: Routine inspections, oil changes, filter replacements, spark plug maintenance, coolant checks and flushes, air filter cleaning/replacement, chain maintenance (if applicable to engine drive), battery checks. Troubleshooting: Diagnostic procedures for common engine faults, error code interpretation (if applicable), symptom-based troubleshooting guides, electrical system checks related to engine operation. Repair: Detailed step-by-step instructions for component removal, disassembly, inspection, repair, assembly, and installation. Includes engine rebuild procedures, piston and ring replacement, valve seal replacement, crankshaft bearing service, transmission component repair (if integrated/directly accessible). Technical Depth Depth: Comprehensive. Covers everything from basic fluid checks and adjustments to complete engine disassembly, rebuild, and performance tuning basics. 📊 Manual Specifications File Format File Type: Adobe PDF Print Quality Printability: High-resolution, printable pages. Users can print specific sections or the entire manual. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: V-Twin (90-degree) Displacement: 990cc (specific variants may differ slightly, e.g., 997cc for some Mille models) Bore X Stroke: Typically 97 mm x 67.5 mm (subject to specific V990 variants) Valve Train: DOHC (Double Overhead Camshafts), 4 valves per cylinder Performance Horsepower: Ranges from approximately 125-140 HP depending on the specific model and tuning (e.g., Mille, Falco, Tuono). Torque: Approximately 95-100 Nm (subject to specific V990 variants). Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Throttle Body Size: Typically 54-56 mm Ignition System Ignition Type: Digital CDI with electronic advance Cooling System Cooling Method: Liquid-cooled Lubrication System Oil Type Specification: Refer to manual for specific API or JASO rating (typically JASO MA/MA2 for wet clutch compatibility) and viscosity (e.g., 10W-40, 15W-50). Oil Capacity: Approx. 3.5 - 4.0 liters (check manual for dry fill and service fill capacity). 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Features Clutch Type: Hydraulic wet multi-plate clutch 📐 Dimensions Weights Dry Weight: Varies by model, typically around 185-205 kg (dry). 💡 Technology Features Infotainment Infotainment Systems: N/A (Motorcycle - focus is on engine and vehicle operation) Driver Assistance Traction Control: Present on later RSVR models, not standard on all V990 variants. Manual will cover its function and maintenance if equipped. Connectivity Diagnostic Tools: The manual will detail diagnostic procedures, which may involve specific tools or connections to the ECU for fault code reading and live data analysis. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 6,000-10,000 km or 6-12 months, whichever comes first. Check manual for exact interval. Valve Clearance Check: Typically every 12,000-24,000 km, depending on model and wear. Crucial for V990 engines. Fluid Specifications Coolant Type: Ethylene glycol based antifreeze coolant with corrosion inhibitors (e.g., Motul Inugel, Castrol Radicool). Brake Fluid Type: DOT 4 (or DOT 5.1 if specified by manufacturer for higher boiling point). Known Issues Common Problems: Stator failure, clutch slave cylinder leaks, occasional regulator/rectifier issues, cam chain tensioner wear (early models), potential for gearbox issues if poorly maintained or abused. Regular maintenance is key. Preventative Measures: Use correct fluids, adhere to service intervals, monitor for leaks, address any unusual noises promptly, ensure proper cooling system function. 📚 Vehicle History Brand Heritage Manufacturer Origin: Italy Model Evolution Key Models Using V990: Aprilia RSV Mille, RSVR, Tuono, Falco, Caponord (some variants). Production Production Period Start: Late 1990s (V990 concept), mass production from 1999/2000 onwards.