The Aprilia SXV 450, SXV 550, RXV 450, and RXV 550 models, produced in 2009, represent a significant offering in the high-performance dual-sport and supermoto segments. These Italian-manufactured motorcycles are renowned for their potent V-twin engines, available in 450cc and 550cc displacements, delivering impressive horsepower and torque figures for their class. Featuring race-derived chassis, advanced suspension components, and powerful braking systems, these machines are engineered for exhilarating performance on both the street and track. Their aggressive styling and lightweight construction further enhance their appeal to enthusiasts seeking a track-inspired riding experience. This comprehensive service repair workshop manual provides in-depth guidance for the maintenance and repair of the 2009 Aprilia SXV and RXV models. It covers all essential systems, including detailed procedures for engine mechanicals, fuel and ignition systems, cooling, exhaust, transmission, drivetrain, front and rear suspension, brakes, wheels, tires, and the electrical system. The manual also includes troubleshooting guides, routine maintenance schedules, and specific instructions for component overhauls and diagnostics. This resource is designed to assist owners, mechanics, and technicians in ensuring the optimal performance, reliability, and longevity of their Aprilia motorcycles. 🏷️ Basic Information Identification Make: Aprilia Model: SXV 450, SXV 550, RXV 450, RXV 550 Year: 2009 Codes Chassis Codes: RK, RN (SXV 450/550), RG, RL (RXV 450/550) Engine Codes: V994 L (450cc), V992 L (550cc) - V-twin configurations 👋 Introduction Market Position Positioning: High-performance dual-sport/supermoto motorcycles known for their potent V-twin engines and capable chassis, catering to a niche market of enthusiasts seeking track-inspired street performance. Competitive Analysis Competitors: KTM 690 SMC/Enduro, Husqvarna SM/TE series, Ducati Hypermotard (older generations). Key Features Features: Powerful V-twin engines, race-derived chassis, high-quality suspension components (often from WP, Marzocchi, or Paioli), potent braking systems, lightweight construction, and aggressive styling. 📋 Manual Details Coverage Areas Primary Coverage: Aprilia SXV 450, RXV 450, SXV 550, RXV 550 Secondary Coverage: Related components and variations within the 2009 model year Page Count Estimated Pages: 300-400 pages (typical for comprehensive service manuals) Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Complete disassembly, inspection, repair, and reassembly of V-twin engines (450cc & 550cc), including cylinders, pistons, crankshaft, camshafts, valves, timing systems. Fuel System: Carburetor systems (Mikuni VM series or similar), fuel pump, fuel lines, fuel tank, and associated components. Ignition System: CDI ignition, spark plugs, ignition coils, stator, and wiring diagrams. Cooling System: Radiator, coolant hoses, thermostat, water pump, and fan operation. Exhaust System: Exhaust headers, mufflers, and associated mounting hardware. Transmission: Clutch system (wet multi-plate), gearbox disassembly, inspection, and reassembly, including gear sets, shift drum, and shift forks. Drivetrain: Chain drive system, sprockets, and swingarm maintenance. Suspension Front: Upside-down telescopic forks (e.g., Marzocchi or Paioli), including disassembly, seal replacement, oil changes, and adjustment procedures. Suspension Rear: Monoshock rear suspension, including linkage maintenance, shock absorber inspection and service, and spring pre-load adjustments. Brakes Front: Dual hydraulic disc brakes, including caliper service, master cylinder overhaul, brake pad replacement, fluid flush, and bleeding procedures. Brakes Rear: Single hydraulic disc brake, including caliper service, master cylinder overhaul, brake pad replacement, fluid flush, and bleeding procedures. Wheels Tires: Wheel bearing service, tire removal and installation, and rim maintenance. Electrical System: Battery maintenance, starter motor, lighting system (headlight, taillight, turn signals), horn, and wiring diagrams for all circuits. Frame Bodywork: Frame inspection and repair, body panel removal and installation, seat, fuel tank, and fairing components. Troubleshooting: Diagnostic procedures for common issues, symptom-based troubleshooting guides, and fault finding. Procedures Included Routine Maintenance: Oil and filter changes, air filter cleaning/replacement, chain adjustment, spark plug inspection, and general lubrication. Engine Rebuild: Complete engine teardown, component measurement, wear assessment, and reassembly with torque specifications. Suspension Service: Fork seal replacement, fork oil changes, shock absorber fluid replacement, and linkage bearing service. Brake System Overhaul: Complete brake caliper rebuilding, master cylinder servicing, and brake line replacement. Electrical Diagnostics: Wiring harness tracing, component testing (e.g., ignition coil resistance, stator output), and troubleshooting electrical faults. Carburetor Tuning: Adjustment of idle speed, mixture screws, and jetting recommendations for different conditions. Technical Depth Depth: Comprehensive, from basic maintenance to complete engine and component overhauls. Suitable for professional mechanics and experienced DIY enthusiasts. 📊 Manual Specifications File Format Format Details: Searchable PDF for easy navigation and printing of specific sections. High-resolution diagrams and clear text. Print Quality Print Quality: Printable pages with clear schematics and legible text for workshop use. Binding Type Binding: N/A (Digital PDF download) Paper Type Paper Type: N/A (Digital PDF download) ⚙️ Engine Specifications Primary Engine Configuration: V-twin, 4-stroke, liquid-cooled Displacement 450: 449.8 cc Bore Stroke 450: 74 mm x 52.3 mm (approximate) Displacement 550: 549.5 cc Bore Stroke 550: 84 mm x 50 mm (approximate) Performance Horsepower 450: Approx. 50-55 HP (may vary by tuning) Horsepower 550: Approx. 60-65 HP (may vary by tuning) Torque 450:...