Segment:
Supermoto/Dual-Sport niche, high-performance off-road focused street-legal motorcycles.
Target Audience:
Enthusiast riders, DIY mechanics, performance-oriented owners seeking to maintain and repair their high-strung Aprilia machines.
Key Competitors:
KTM EXC-R series, Husqvarna SMR/TE series, Ducati Hypermotard (in spirit).
Vehicle Identity:
Aprilia's powerful V-twin engines in a lightweight, agile chassis designed for both track-day prowess and spirited street riding.
Manual Value Proposition:
Provides essential, factory-accurate technical data crucial for owners and technicians to properly maintain, diagnose, and repair these specialized Italian motorcycles.
Engine Assembly:
Detailed disassembly, inspection, repair, and reassembly procedures for both 450cc and 550cc V-twin engines.
Fuel System:
Fuel injection system diagnostics, component testing, fuel pump, injectors, throttle body, and ECU mapping information.
Cooling System:
Radiator, coolant passages, fan operation, thermostat, and troubleshooting for overheating issues.
Ignition System:
Spark plugs, ignition coils, CDI unit, timing, and related diagnostics.
Exhaust System:
Component inspection, gasket replacement, and structural integrity checks.
Transmission And Drivetrain:
Clutch operation, gearbox disassembly, gear inspection, shifting mechanism, chain and sprocket maintenance.
Suspension Front:
Fork seal replacement, oil changes, damper adjustments, stanchion inspection, and assembly.
Suspension Rear:
Shock absorber servicing, linkage lubrication, bearing checks, and rear spring preload adjustments.
Braking System Front:
Brake caliper overhaul, pad replacement, disc inspection, master cylinder servicing, and hydraulic line bleeding.
Braking System Rear:
Rear caliper servicing, pad and disc replacement, and brake fluid checks.
Electrical System Wiring:
Complete wiring diagrams, component location, circuit descriptions, troubleshooting for electrical faults.
Lighting And Instruments:
Headlight, taillight, turn signals, dashboard indicators, and instrument cluster diagnostics.
Battery And Charging:
Battery testing, charging system checks (stator, regulator/rectifier).
Body Panels And Fairings:
Removal, installation, and repair of all bodywork, including plastics and seat.
Frame And Steering:
Headstock bearing inspection and replacement, frame integrity checks.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, spark plug replacement, air filter cleaning/replacement.
Engine Rebuild:
Complete engine overhaul, piston replacement, ring installation, valve adjustments, cylinder head work.
Suspension Tuning:
Adjustments for different riding conditions, fork oil viscosity selection.
Brake Bleeding:
Step-by-step guide for proper brake fluid exchange and system bleeding.
Electrical Troubleshooting:
Systematic diagnostic procedures for identifying and resolving electrical issues.
Torque Specifications:
All critical fastener torque values for engine, chassis, and bodywork.
Diagnostic Codes:
Information on reading and interpreting diagnostic trouble codes (DTCs) if applicable to the 2011 model.
Special Tool Requirements:
Identification of necessary special tools for specific repair procedures.
Troubleshooting Charts:
Includes diagnostic flowcharts for common problems, symptoms, and potential causes.
Depth:
Comprehensive, covering everything from basic maintenance to full engine and gearbox rebuilds, including in-depth electrical diagnostics.
Engine Type 450:
V-twin, Four-stroke, Liquid-cooled
Engine Type 550:
V-twin, Four-stroke, Liquid-cooled
Bore X Stroke 450:
Approx. 72 mm x 55.2 mm (Specific figures to be confirmed in manual)
Bore X Stroke 550:
Approx. 78 mm x 55.2 mm (Specific figures to be confirmed in manual)
Compression Ratio:
Typically around 12.0:1 to 13.0:1 (Specific figures to be confirmed in manual)
Horsepower 450:
Approx. 65-70 HP (Specific figures to be confirmed in manual)
Horsepower 550:
Approx. 70-75 HP (Specific figures to be confirmed in manual)
Torque 450:
Approx. 45-50 Nm (Specific figures to be confirmed in manual)
Torque 550:
Approx. 50-55 Nm (Specific figures to be confirmed in manual)
Fuel Delivery:
Electronic Fuel Injection (EFI) with VCM (Vehicle Control Module)
Fuel Type:
Unleaded gasoline, minimum 95 RON (Premium)
Oil Change Interval:
Recommended every 3,000-5,000 km or annually (Specific interval detailed in manual)
Valve Clearance Check:
Recommended every 6,000-10,000 km (Specific interval detailed in manual)
Chain Lubrication Cleaning:
Frequent (every 500-1000 km) and after wet riding conditions (Detailed in manual)
Engine Oil Type:
Synthetic SAE 10W-40 or 15W-50 API SG/SH/SJ or higher (Specific specification in manual)
Engine Oil Capacity:
Approx. 1.6 - 1.8 Liters (Specific capacity in manual)
Coolant Type:
Ethylene glycol based coolant, 50% mixture with distilled water (Specific type in manual)
Brake Fluid Type:
DOT 4 hydraulic brake fluid (Specific type in manual)
Fork Oil Type:
Specific viscosity grade fork oil (e.g., 5W or 7.5W) (Detailed in manual)
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, fork seals, voltage regulator.
Potential Electrical Gremlins:
Wiring harness issues or stator/regulator failures can occur with age and mileage, requiring detailed electrical troubleshooting found in the manual.