🏷️ Basic Information Identification Make: Aprilia Model: V990 Engine Year: 2001 Product Type: Workshop Service Repair Manual 👋 Introduction Market Position Target Audience: Do-it-yourself owners and experienced mechanics Competitive Analysis Value Proposition: Cost-effective solution for maintaining and repairing the Aprilia V990 Engine Key Features Diagram Quality: Top quality diagrams, highly detailed exploded pictures Instruction Style: Step-by-step instructions for efficient and correct repair Completeness: Covers every single detail on the machine 📋 Manual Details Coverage Areas Primary Coverage: Aprilia V990 Engine Systems Secondary Coverage: Chassis Parts, Fuel Supply, Cooling, Electrical Systems Page Count Estimated Pages: Detailed and comprehensive (specific page count not provided in product info, but implied extensive) Manual Type Type: Factory Service Repair Manual Language Language: English Format File Format: Adobe Acrobat Document (.pdf) 📖 Manual Coverage Systems Covered Engine: Complete disassembly and reassembly, component analysis, diagnostics Fuel Supply System: Carburetor/Injection system components, fuel pump, filters, lines, troubleshooting Cooling System: Radiator, water pump, coolant lines, thermostat, bleeding procedures Electrical System: Ignition system, starter, charging system, lighting, wiring diagrams, diagnostics Chassis Parts: Frame components, suspension, brakes, steering (general overview as related to engine installation/service) Procedures Included Maintenance: Routine service, adjustments, fluid changes Repair: Component repair, part replacement, rebuilding procedures Diagnostics: Troubleshooting common issues, fault finding techniques Setting Up: Initial setup and adjustments after repair or rebuild Technical Depth Depth: Comprehensive, from basic maintenance to complete engine overhaul, detailed diagrams 📊 Manual Specifications File Format Print Quality: Full Printable Zoom Capability: YES Binding Type Binding: Digital (PDF format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: V990 (Liquid-cooled, Four-stroke, 90-degree V-twin) Displacement: 990cc (Specific variant may vary, but V990 typically refers to this displacement) Performance Typical Horsepower: Varies by specific Aprilia model using the V990 engine (e.g., RSV Mille, Tuono Factory), but generally in the 120-135 HP range. Typical Torque: Varies by specific Aprilia model, generally around 95-105 Nm. Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) or Carburetor depending on specific motorcycle model utilizing the V990 engine. Engine Features Valve Train: DOHC, 4 valves per cylinder Ignition System: Electronic ignition with variable ignition timing 🔧 Transmission Standard Transmission Type: 6-speed sequential manual (typically integrated with engine unit in Aprilia models) Optional Optional Gearbox: N/A (Standard for the V990 engine platform) Features Clutch Type: Wet, multi-plate clutch 📐 Dimensions Exterior Engine Dimensions: Specific physical dimensions not detailed in product information, but designed for integration into motorcycle chassis. Weights Engine Weight: Specific weight not detailed, but typically around 60-70 kg for such an engine. 🛡️ Safety Features Ratings Safety Focus: Manual focuses on mechanical and electrical integrity for safe operation. Active Features Engine Control: Properly maintained EFI and ignition systems contribute to predictable engine behavior. Passive Features Structural Integrity: Manual covers correct assembly procedures to ensure mechanical integrity. 💡 Technology Features Infotainment Engine Integration: The manual details engine control unit (ECU) functions and diagnostics, which are central to the motorcycle's performance management. Driver Assistance Traction Control: Some later V990 variants might incorporate traction control; the manual would detail its operation if present. Connectivity Diagnostic Ports: Manual will guide users on accessing diagnostic data through the motorcycle's onboard diagnostics system. 🔧 Maintenance Service Intervals Typical Oil Change: Refer to specific motorcycle model documentation, but generally every 5,000-7,500 km or annually. Valve Clearance Check: Typically every 10,000-20,000 km, critical for V-twin performance. Fluid Specifications Engine Oil Type: API SG/SH/SJ or higher, JASO MA certified motorcycle oil, viscosity typically 10W-40 or 15W-50 depending on climate. Coolant Type: Ethylene glycol based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water. Known Issues Common Wear Points: Cam chain tensioners, clutch wear, electrical connector corrosion are common areas to inspect on higher mileage units. Cooling System Maintenance: Regular flushing and replacement of coolant is crucial to prevent corrosion and blockages. Parts And Filters Oil Filter Example: Part numbers vary by specific model (e.g., Hiflofiltro HF152 or OEM equivalent). Air Filter Example: Part numbers vary by specific model (e.g., K&N filters often available as upgrades). 📚 Vehicle History Brand Heritage Manufacturer: Aprilia is an Italian manufacturer known for performance motorcycles and racing heritage. Model Evolution V Twin Development: The V990 engine platform was a key development for Aprilia, powering many of their successful sportbikes and nakeds. Production Engine Production Period: The V990 engine was produced for a significant period, with variations appearing in models from the late 1990s through the 2000s. 🏆 Awards & Recognition Recognitions Engine Reputation: Aprilia's V990 engines are generally well-regarded for their performance and character, particularly in racing homologation specials and flagship sportbikes.