Market Position:
The Aprilia Pegaso 650 (specifically the Strada and Trail variants from this era) was positioned as a versatile, user-friendly, single-cylinder adventure/supermoto motorcycle, appealing to riders seeking practicality and a unique Italian flair for commuting and light touring.
Competitive Analysis:
Competed against models like the BMW F650GS, Yamaha XT660R/X, and Suzuki V-Strom 650, offering a distinctive styling and performance package.
Key Features:
Robust Rotax single-cylinder engine, comfortable riding position, capable suspension (especially on Trail models), distinctive styling, and agile handling.
Manual Purpose:
Designed to empower both professional technicians and skilled DIY enthusiasts with the knowledge required for effective maintenance, troubleshooting, and repair of the 2005 Aprilia Pegaso 650.
Engine Mechanical:
Detailed overhaul, top-end, bottom-end, cooling system, lubrication system
Fuel System:
Fuel injection system (EFI), fuel pump, injectors, throttle body, sensors
Ignition System:
Ignition coils, spark plugs, timing
Transmission Drivetrain:
Clutch operation, gearbox overhaul, chain drive maintenance
Brakes:
Hydraulic brake system, caliper servicing, master cylinder, bleeding procedures
Suspension Steering:
Front fork maintenance, rear shock absorber, steering head bearing service
Electrical System:
Battery, charging system (stator, regulator/rectifier), starter motor, lighting, wiring diagrams
Chassis Frame:
Frame inspection, subframe, swingarm maintenance
Bodywork Fairings:
Panel removal/installation, seat, tank, fairing components
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, spark plug checks, air filter servicing
Troubleshooting:
Diagnostic procedures for common faults and performance issues
Repair Overhaul:
Step-by-step instructions for component disassembly, inspection, repair, and reassembly
Adjustment Calibration:
Throttle cable, clutch cable, chain slack, idle speed (if applicable)
Wiring Diagrams:
Detailed electrical schematics for fault finding and component identification
Torque Specifications:
Crucial tightening values for all fasteners
Technical Depth:
Professional level with detailed specifications, diagrams, and diagnostic flowcharts
Engine Type:
Four-stroke, single-cylinder, liquid-cooled, DOHC
Displacement:
652 cc (654 cc according to some sources)
Bore X Stroke:
100 mm x 83 mm (Approximate, check specific engine variant)
Compression Ratio:
10.0:1 (Approximate)
Horsepower:
Approx. 48-50 HP @ 6250 rpm (varies slightly by model variant and region)
Torque:
Approx. 60 Nm (44 lb-ft) @ 5200 rpm (varies slightly)
Fuel Delivery:
Electronic Fuel Injection (EFI) - Weber Marelli or similar system
Fuel Type:
Unleaded gasoline (Octane rating as per manufacturer recommendation, typically 95 RON)
Ignition:
Electronic ignition, controlled by ECU
Oil Type:
API SG/SH/SJ, JASO MA certified motorcycle oil, SAE 10W-40 or 15W-50 recommended (check manual for exact specification)
Cooling Medium:
Water/Glycol mixture (50/50 antifreeze/distilled water)
Transmission Type:
Constant mesh, 5-speed sequential gearbox
Clutch:
Wet multi-plate clutch, hydraulically operated
Final Drive:
O-ring sealed chain drive
Gear Ratios:
Specific gear ratios are detailed within the service manual, crucial for performance tuning and diagnostics.
Transmission Fluid:
Utilizes engine oil for lubrication; refer to engine oil specifications.
Length:
Approx. 2150 mm (Varies by model variant, Trail/Strada)
Width:
Approx. 820 mm (Varies by model variant)
Height:
Approx. 1350 mm (Varies by model variant)
Dry Weight:
Approx. 168 kg (Varies by model variant)
Wet Weight:
Approx. 185 kg (Varies by model variant, with fluids)
Fuel Tank Capacity:
14 Liters (including 3-liter reserve)
Front Tire Size:
90/90-21 (Trail) or 110/70-17 (Strada)
Rear Tire Size:
130/80-17 (Trail) or 140/70-17 (Strada)
Front Wheel Type:
Spoked (Trail), Alloy (Strada)
Rear Wheel Type:
Spoked (Trail), Alloy (Strada)
Wheelbase:
Approx. 1470 mm
Safety Ratings:
N/A (Motorcycles typically do not receive standardized crash test ratings like cars)
Braking System:
Hydraulic disc brakes front and rear. Dual discs on the front for enhanced stopping power.
Optional ABS:
ABS was an optional feature on some Pegaso 650 models, check specific bike's VIN or specifications.
Lighting:
Headlight, tail light, brake lights, turn signals
Exhaust System:
Meets emissions standards for its production year.
Infotainment System:
N/A (This model predates integrated infotainment systems in motorcycles)
Driver Assistance Features:
Optional ABS (Anti-lock Braking System) on some models.
Engine Management System:
ECU-controlled electronic fuel injection and ignition management.
Oil Change Interval:
Typically every 5,000-7,500 km or annually, whichever comes first (refer to manual for precise interval)
Filter Replacement Interval:
Oil filter: With every oil change. Air filter: Typically inspected every 10,000 km, replaced as needed.
Spark Plug Replacement:
Recommended replacement every 10,000-15,000 km (specific plug type and gap are crucial)
Valve Clearance Check:
Typically every 10,000-20,000 km, depending on usage and wear. Critical for single-cylinder engine health.
Chain Maintenance:
Regular cleaning, lubrication, and adjustment (check tension at least every 1,000 km)
Brake Fluid Type:
DOT 4 hydraulic brake fluid
Coolant Specifications:
Ethylene glycol-based coolant, 50% mixture with distilled water
Known Issues Common:
Potential issues can include stator failure, regulator/rectifier issues (leading to charging problems), clutch slave cylinder leaks, and wear on suspension components over time. The manual will detail diagnostic and repair procedures for these.
Fuel Injector Cleaning:
Periodic cleaning might be recommended depending on fuel quality and usage.
Brand Heritage:
Aprilia boasts a rich racing heritage, particularly in smaller displacement classes, which informs its sport-oriented motorcycle designs.
Model Evolution Pegaso:
The Pegaso line originated in the early 1990s and has evolved through various iterations, including the popular 650cc single-cylinder models, adapting to market demands with dual-purpose (Strada) and adventure-oriented (Trail) variants.
Production Years Covered:
This manual specifically covers the 2005 model year, but the underlying platform was produced across several years with minor updates.
Manufacturing Location:
Aprilia motorcycles are manufactured in Italy.
