Segment:
Mid-size dual-sport/adventure motorcycle, appealing to riders seeking versatility for commuting, touring, and light off-road use.
Competitors 1997:
BMW F650 Funduro, Kawasaki KLR650, Suzuki DR650SE, Yamaha XT600E.
Vehicle Appeal:
Robust single-cylinder engine, comfortable ergonomics for long distances, capable suspension, and distinctive Italian styling.
Target Audience:
Aprilia Pegaso 650 owners, independent motorcycle mechanics, and enthusiasts who perform their own maintenance and repairs.
General Coverage:
Comprehensive maintenance and repair procedures for the 1997 Aprilia Pegaso 650.
Specific Systems:
Engine, Fuel System, Ignition System, Cooling System, Exhaust System, Clutch, Transmission, Frame, Suspension (Front & Rear), Brakes (Front & Rear), Wheels, Tires, Electrical System, Controls, Bodywork, Diagnostic Procedures, Troubleshooting.
Estimated Pages:
Typically 300-500 pages for a factory service manual of this era, depending on the exact edition and inclusion of supplementary materials.
Type:
Factory Service / Repair / Workshop Manual
Language:
Likely English, with potential for other European languages depending on region of origin.
Format:
Instant Download (Digital - likely PDF)
Engine Mechanical:
Detailed disassembly, inspection, and reassembly of engine components including cylinder head, valves, piston, connecting rod, crankshaft, and timing components.
Fuel System:
Carburetor (likely Mikuni BSR33) specifications, adjustment, cleaning, and rebuilding; fuel pump and lines inspection.
Ignition System:
CDI system diagnosis, spark plug specifications, ignition timing verification.
Cooling System:
Radiator, fan, thermostat, hoses, and coolant specifications and maintenance.
Transmission Drivetrain:
Clutch operation, adjustment, and replacement; gearbox disassembly, inspection, and reassembly; chain and sprocket maintenance.
Suspension Steering:
Front fork (likely Marzocchi or Paioli) disassembly, seal replacement, oil specifications, and adjustment; rear shock absorber servicing; steering head bearing maintenance.
Brakes:
Brake fluid specifications; caliper, master cylinder, and brake line inspection and replacement; pad and disc wear limits.
Electrical System:
Wiring diagrams, battery testing and maintenance, starter motor, alternator, lighting, and instrumentation servicing.
Basic Maintenance:
Oil changes, filter replacement, chain adjustment, tire pressure checks, spark plug replacement, air filter cleaning/replacement.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, fault finding charts.
Repair Rebuild:
Step-by-step instructions for component removal, repair, and reinstallation, including engine and transmission overhauls.
Inspections:
Wear limits for critical components, visual inspection guidelines, functional testing procedures.
Depth:
Comprehensive, suitable for factory-trained technicians and experienced DIY mechanics. Covers everything from basic servicing to complete engine and gearbox rebuilds.
Type:
Four-stroke, single-cylinder, DOHC, 4 valves
Bore X Stroke:
100 mm x 83 mm (approximate, requires manual verification)
Compression Ratio:
9.1:1 (approximate, requires manual verification)
Cooling System:
Liquid-cooled
Horsepower:
Approx. 46-48 HP @ 6200-6700 RPM (requires manual verification)
Torque:
Approx. 57-60 Nm @ 4700-5000 RPM (requires manual verification)
Carburetor:
Single Mikuni BSR33 (or similar) with accelerator pump
Fuel Tank Capacity:
Approx. 14-16 Liters (requires manual verification)
Oil Type:
Typically SAE 10W-40 or 20W-50 motorcycle-specific oil meeting API SG or higher, JASO MA specifications (confirm with manual).
Type:
5-speed sequential, constant mesh
Optional Transmissions:
N/A (only one transmission option typically offered)
Final Drive:
O-ring sealed chain drive
Clutch Type:
Wet, multi-plate, cable-actuated
Transmission Oil:
Typically shared engine oil, or specific gearbox oil depending on design (confirm with manual).
Length:
Approx. 2180 mm (requires manual verification)
Width:
Approx. 850 mm (requires manual verification)
Height:
Approx. 1340 mm (seat height, requires manual verification)
Seat Height:
Approx. 830-850 mm (requires manual verification)
Dry Weight:
Approx. 170-180 kg (requires manual verification)
Wet Weight:
Approx. 185-195 kg (requires manual verification)
Max Load Capacity:
Typically around 180-200 kg including rider and luggage (requires manual verification).
Front Wheel Size:
19 inch (typically alloy or spoked)
Rear Wheel Size:
17 inch (typically alloy or spoked)
Front Tire Size:
100/90-19 (approximate, requires manual verification)
Rear Tire Size:
130/80-17 (approximate, requires manual verification)
Crash Test Ratings:
N/A for motorcycles
Braking System:
Front: Disc brake with dual-piston caliper. Rear: Disc brake with single-piston caliper. ABS was an optional feature on some later models, but unlikely for '97 base model (confirm with manual).
Lighting:
Halogen headlamp, LED or incandescent tail light and turn signals.
Instrumentation:
Analog speedometer and tachometer, fuel gauge, coolant temperature warning light.
Oil Change Interval:
Typically every 3,000-5,000 km or 6 months (requires manual verification).
Spark Plug Replacement:
Typically every 10,000-15,000 km (requires manual verification).
Valve Clearance Check:
Typically every 10,000-20,000 km (requires manual verification).
Chain Maintenance:
Lubrication and adjustment every 500-1000 km, or as needed based on conditions.
Engine Oil Capacity:
Approx. 2.0-2.3 Liters with filter change (requires manual verification).
Coolant Type:
Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio recommended, confirm with manual).
Brake Fluid Type:
DOT 4 (requires manual verification).
Common Wear Items:
Clutch plates, cam chain tensioner, wheel bearings, fork seals.
Electrical Concerns:
Can sometimes experience aging electrical connectors or charging system issues (alternator, rectifier) over time.
Carburetor Tuning:
Mikuni BSR33 can sometimes require careful adjustment for optimal performance and idling, especially with altitude or modifications.
Aprilia Legacy:
Aprilia is an Italian manufacturer with a strong heritage in motorcycle racing and sports bike production, known for innovative engineering and stylish designs.
Pegaso Lineage:
The Pegaso line, introduced in the early 1990s, was Aprilia's foray into the dual-sport market. It evolved through various engine and styling updates, with the 650cc Rotax-derived single-cylinder engine being a staple for many years.
Manufacturing Location:
Italy
Production Years Model:
The Pegaso 650 was produced from the early 1990s through the early 2000s, with significant updates during its lifecycle. The 1997 model is part of the 'Classic' or early generation of the Pegaso 650.
