Segment:
Dual-sport / Adventure motorcycle
Target Audience:
Riders seeking a versatile motorcycle for on-road commuting and light off-road exploration.
Key Competitors:
BMW F650 (Funduro), Honda Transalp, Kawasaki KLR650, Suzuki DR650.
Design Philosophy:
Italian flair combined with practical dual-sport functionality, often praised for its handling and aesthetic.
Engine Characteristics:
Torquey single-cylinder engine, providing good low-end grunt suitable for varied terrain.
Value Proposition:
Essential for owners to maintain, diagnose, and repair their 1997 Aprilia Pegaso 650, ensuring longevity and optimal performance.
Primary Coverage:
1997 Aprilia Pegaso 650
Secondary Coverage:
Potentially adjacent model years (1996, 1998) with minor variations
Estimated Page Count:
300-500 pages (typical for OEM service manuals of this era)
Type:
OEM Workshop Service Repair Manual
Language:
English (based on typical OEM manual languages and product description implying comprehensive documentation)
Format:
Digital Download (PDF)
Engine:
Complete engine overhaul, disassembly, assembly, tuning, lubrication, cooling system, fuel system, ignition system, emissions control.
Transmission:
Clutch operation, gearbox disassembly and assembly, lubrication, troubleshooting.
Chassis And Frame:
Frame inspection and repair, steering head bearings, swingarm, rear suspension, front forks, wheel bearings.
Brakes:
Hydraulic system (master cylinders, calipers, lines), disc and pad replacement, bleeding procedures, troubleshooting.
Electrical System:
Wiring diagrams, battery, charging system (alternator, regulator/rectifier), ignition system, lighting, starter motor, fuses, relays, instrument cluster.
Fuel System:
Carburetor (likely Mikuni BSR33 or similar) disassembly, cleaning, adjustment, jetting; fuel pump (if applicable); fuel lines.
Cooling System:
Radiator, hoses, thermostat, coolant specifications, bleeding procedures.
Exhaust System:
Exhaust pipe and muffler inspection, gasket replacement.
Bodywork And Fairings:
Panel removal and installation, graphic application, minor body repair.
Maintenance:
Regular service intervals, oil changes, filter replacements, chain adjustment, spark plug replacement, valve clearance checks and adjustments.
Troubleshooting:
Diagnostic charts for common problems, symptom-based troubleshooting guides.
Repair:
Detailed step-by-step instructions for all major component repairs and replacements.
Disassembly And Assembly:
Complete guidance for taking apart and reassembling all major vehicle systems.
Torque Specifications:
Precise torque values for all critical fasteners and bolts.
Wiring Diagrams:
Comprehensive electrical schematics for accurate diagnosis and repair.
Depth:
Comprehensive, covering basic owner maintenance to full engine rebuilds and advanced electrical diagnostics.
Type:
Single-cylinder, four-stroke
Displacement:
652 cc (approximately)
Bore X Stroke:
100 mm x 82 mm (typical for this engine, confirmation in manual is key)
Valve Train:
SOHC, 4 valves per cylinder
Cooling System:
Liquid-cooled
Compression Ratio:
9.5:1 (typical, check manual)
Horsepower:
Approximately 48-50 HP @ 6,200 rpm (peak, subject to tuning and region)
Torque:
Approximately 57 Nm (42 lb-ft) @ 4,800 rpm (peak, subject to tuning and region)
Carburetor:
Single Mikuni BSR33 (likely, or similar) with accelerator pump
Fuel Tank Capacity:
Approximately 16-18 liters (50-55 mpg average, subject to riding)
Oil Type:
API SG, SAE 10W-40 or 20W-50 motorcycle specific (refer to manual for exact specification)
Oil Capacity:
Approximately 2.0-2.5 liters (with filter change, confirm in manual)
Length:
Approximately 2150 mm
Width:
Approximately 840 mm (at handlebars)
Height:
Approximately 1270 mm (to top of windscreen)
Dry Weight:
Approximately 170-180 kg (dry)
Wet Weight:
Approximately 190-200 kg (fully fueled)
Payload Capacity:
Refer to manual for specific rider and luggage limits.
Oil Change Interval:
Every 5,000-7,500 km or annually (check manual for precise interval).
Valve Clearance Check:
Every 10,000-15,000 km (critical for this single-cylinder engine's performance).
Air Filter Cleaning:
Every 5,000 km or as needed in dusty conditions.
Chain Lubrication Adjustment:
Every 1,000 km or as needed, checking tension regularly.
Coolant Type:
Ethylene glycol based coolant with anti-corrosion additives (refer to manual for specific ratio and type).
Brake Fluid:
DOT 4 hydraulic brake fluid (ensure conformity with manual specification).
Typical Wear Items:
Clutch plates, fork seals, steering head bearings, chain and sprockets.
Potential Electrical Issues:
Regulator/rectifier failure, stator winding issues, corrosion in connectors.
Carburetor Tuning:
Can be sensitive to altitude and modifications; regular cleaning and adjustment are beneficial.
Engine Top End:
Valve adjustment, piston ring replacement (if wear occurs).
Suspension Overhaul:
Fork seal replacement, rear shock absorber service or replacement.
Manufacturer:
Aprilia is an Italian manufacturer known for its performance motorcycles, particularly in racing (Grand Prix).
Pegaso Lineage:
The Pegaso line, introduced in the early 1990s, aimed to capture the growing dual-sport market, blending European design with utilitarian function.
1997 Model Year:
Represents a refinement of the initial Pegaso 650 platform, with potential updates to suspension, styling, or minor engine tuning compared to earlier iterations.
Manufacturing Location:
Italy
