Segment:
Supermoto / Off-road performance motorcycle
Target Audience:
Enthusiasts, mechanics, and owners requiring in-depth service and repair information.
Competitors:
KTM EXC/SMC series, Husqvarna SMR/TE series, Ducati Hypermotard (segment overlap).
Engine Configuration:
V-twin engine, a unique characteristic for its class at the time.
Performance Focus:
Designed for aggressive riding, track use, and spirited street performance.
Value Proposition:
Provides essential, detailed information to maintain and repair the SXV/RXV, crucial for this high-performance machine.
Engine Mechanical:
Detailed coverage of internal engine components, assembly, disassembly, and adjustments.
Engine Electrical:
Ignition system, fuel injection, starting system, charging system, sensors, and troubleshooting.
Fuel System:
Fuel pump, injectors, throttle body, fuel pressure regulator, and associated lines.
Transmission Drivetrain:
Clutch operation, gearbox internals, chain drive maintenance, and lubrication.
Suspension:
Front fork (USD telescopic), rear monoshock, linkage system, adjustments, and rebuild procedures.
Brakes:
Hydraulic brake systems (front and rear), caliper servicing, master cylinder, brake lines, and bleeding procedures.
Wheels Tires:
Wheel bearing maintenance, tire pressure specifications, and rim compatibility.
Electrical System:
Wiring diagrams, lighting, instrumentation, battery, fuses, relays, and starter motor.
Cooling System:
Radiator, fan, thermostat, coolant specifications, and flushing procedures.
Frame Chassis:
Frame inspection, steering head bearing service, and swingarm pivot maintenance.
Bodywork Esthetics:
Fairing removal and installation, seat, fuel tank, and fender components.
Scheduled Maintenance:
Routine checks, oil changes, filter replacements, and valve clearance adjustments.
Troubleshooting:
Diagnostic guides for common problems and systematic fault finding.
Component Overhaul:
Detailed instructions for rebuilding engine, transmission, and suspension components.
Electrical Diagnostics:
Using multimeter, identifying wiring faults, and testing electrical components.
Suspension Tuning:
Sag adjustment, damping and rebound adjustments for fork and shock.
Brake System Maintenance:
Pad replacement, fluid flush, caliper piston service.
Diagnostic Capabilities:
Advanced diagnostic procedures for EFI system and electrical faults.
Rebuild Procedures:
Complete engine and transmission rebuild instructions with torque specifications and clearances.
Special Tool Requirements:
Lists and descriptions of specialized tools required for specific repairs.
Technical Drawings Diagrams:
Exploded views, wiring diagrams, and schematics for clarity.
Engine Type:
Four-stroke, V-twin, liquid-cooled
Bore Stroke 450:
Not specified, but common for this era would be around 70x56.4mm
Bore Stroke 550:
Not specified, but common for this era would be around 70x72.8mm
Horsepower 450:
Approx. 50-55 HP (peak, may vary by tuning)
Horsepower 550:
Approx. 60-65 HP (peak, may vary by tuning)
Torque 450:
Not specified, but strong low-mid range torque typical of V-twins.
Torque 550:
Not specified, but stronger than 450 variant.
Fuel Delivery:
Electronic Fuel Injection (EFI) with dual throttle bodies
Ignition System:
Digital electronic ignition
Fuel Type:
Unleaded gasoline (premium recommended)
Cooling Method:
Liquid-cooled
Oil Change Interval:
Typically every 3,000-5,000 km or annually, or per manual recommendation for severe use.
Valve Clearance Check:
Likely around 10,000-15,000 km, critical for V-twin performance.
Engine Oil Type:
High-quality synthetic motorcycle oil, e.g., SAE 10W-40 or 15W-50 (specific API rating required, check manual).
Coolant Type:
Ethylene glycol-based coolant, 50/50 mix with distilled water.
Brake Fluid Type:
DOT 4 hydraulic brake fluid.
Vibration Characteristics:
V-twins can have characteristic vibrations; manual will detail engine mounting and balancing.
Electrical Reliability:
Some Aprilias of this era required attention to wiring harnesses and connectors; manual will aid diagnostics.
Fueling Issues:
EFI systems can be sensitive; manual covers throttle body cleaning and sensor checks.
Oem Parts:
Manual will often reference OEM part numbers for critical components.
