Positioning:
The Aprilia Pegaso 655 was positioned as a versatile dual-sport or adventure touring motorcycle, appealing to riders looking for a capable machine for both on-road commuting and light off-road exploration. It offered a balance of performance and practicality for its era.
Competitors:
Competed with other European and Japanese dual-sport motorcycles of the mid-1990s, such as certain BMW GS models, Yamaha Ténéré models, and Honda Transalp.
Features:
Characterized by its distinctive styling, the reliable Rotax single-cylinder engine, comfortable ergonomics for longer rides, and capable suspension for varied terrain.
Engine:
Comprehensive coverage of the Rotax 655cc engine, including disassembly, assembly, inspection, and repair of all internal components (cylinder, piston, crankshaft, valves, camshaft, etc.).
Fuel System:
Detailed procedures for the carburetor system (likely a Dell'Orto PHM or similar), fuel pump, fuel lines, and fuel tank maintenance and repair.
Ignition System:
Information on ignition timing, spark plugs, CDI unit, ignition coils, and related wiring diagrams.
Transmission Drivetrain:
Coverage of the gearbox (likely a 5-speed), clutch operation, chain drive, and rear sprocket maintenance.
Suspension:
Detailed instructions for front fork (likely Marzocchi or Paioli) disassembly, seal replacement, oil level/type, and rear monoshock absorber servicing and adjustment.
Brakes:
Procedures for front and rear brake systems, including caliper overhaul, master cylinder servicing, brake line replacement, bleeding procedures, and pad/disc inspection.
Electrical System:
Comprehensive electrical diagrams, troubleshooting guides for lighting, starting system, charging system (alternator/stator), battery, and instrument cluster.
Chassis Frame:
Information on frame inspection, steering head bearing maintenance, and general chassis component tightening specifications.
Cooling System:
Details on the oil cooling system, including oil cooler, oil lines, and oil level checks.
Bodywork Trim:
Guidance on fairing removal, seat, fuel tank mounting, and other body panels.
Maintenance:
Routine maintenance tasks such as oil changes, filter replacement, chain adjustment, brake checks, and spark plug replacement.
Troubleshooting:
Diagnostic procedures for common issues, including starting problems, engine performance issues, and electrical faults.
Repair:
Step-by-step instructions for component disassembly, repair, reassembly, and adjustment.
Installation Removal:
Procedures for removing and installing major components and sub-assemblies.
Technical Specifications:
Torque values, clearances, fluid capacities, and other critical technical data.
Depth:
Comprehensive, covering from basic maintenance to in-depth engine and gearbox overhauls. Suitable for both DIY enthusiasts and professional mechanics.
Format:
Assumed PDF for digital versions, offering searchability and easy printing of specific sections. Physical copies would be bound paper.
Quality:
Factory original manuals are typically high quality with clear diagrams and legible text. Reproductions may vary.
Binding:
If printed, typically a robust perfect binding or spiral binding for ease of use in a workshop environment.
Paper:
Factory manuals usually utilize durable, semi-gloss paper to withstand workshop conditions.
Engine Type:
Single-cylinder, four-stroke
Displacement:
655 cc (approximate, variations might exist based on specific engine codes)
Bore X Stroke:
Typically around 100 mm x 84 mm (based on Rotax 654 specifications)
Cooling System:
Air-cooled with an oil cooler
Valve Train:
SOHC (Single Overhead Camshaft), 4 valves per cylinder
Horsepower:
Approximately 48-50 HP at 6,500 RPM (estimated for 1995 model)
Torque:
Approximately 57-60 Nm at 5,000 RPM (estimated for 1995 model)
Carburetor:
Single Dell'Orto PHM 40 (or similar) downdraft carburetor
Fuel Type:
Unleaded gasoline
Fuel Capacity:
Approximately 15-18 Liters (5.3-6.3 US gallons)
Safety Standards:
As a motorcycle of its era, safety standards were less formalized than modern vehicles. Adherence to general road safety regulations applies.
Braking System:
Hydraulic disc brakes front and rear. Front typically dual discs, rear single disc.
Lighting:
Halogen headlight, taillight, brake light, and turn signals.
Frame Construction:
Steel tube frame providing structural integrity.
Ergonomics:
Designed for rider comfort and control, crucial for active safety.
Oil Change:
Typically every 3,000-5,000 km or annually, refer to manual for precise interval and oil type.
Valve Clearance:
Check and adjust every 6,000-10,000 km. Manual specifies exact procedure and shim sizes.
Spark Plug:
Inspect/replace every 5,000-7,000 km, or as per manual recommendation.
Chain Maintenance:
Lubricate and adjust tension every 500-1,000 km or as needed, depending on riding conditions.
Engine Oil:
API SG or higher, SAE 10W-40 or 20W-50 recommended (check manual for specific viscosity based on ambient temperature).
Engine Oil Capacity:
Approx. 2.5 - 3.0 Liters (with filter change), refer to manual for exact capacity.
Fork Oil:
Typically SAE 10W or 15W fork oil. Capacity per fork leg specified in manual.
Brake Fluid:
DOT 4 recommended for hydraulic brake systems.
Common Wear Items:
Clutch plates, brake pads, fork seals, swingarm bushings, and chain/sprockets are common wear items that require periodic inspection and replacement.
Electrical Connections:
Corrosion or looseness in electrical connectors can lead to intermittent issues; regular inspection is advised.
Carburetor Tuning:
Carburetors can require periodic cleaning and adjustment, especially if the bike has sat for extended periods.
Manufacturer:
Aprilia is an Italian manufacturer renowned for its performance motorcycles, particularly in the sportbike and off-road segments. Founded in 1945, Aprilia has a strong racing pedigree.
Pegaso Lineage:
The Pegaso line was Aprilia's entry into the dual-purpose motorcycle market. Introduced in the late 1980s, it evolved through various engine sizes and styling updates, with the 650cc (later 655cc) Rotax-engined versions being prominent in the 1990s. It aimed to provide a more accessible and street-biased alternative to larger adventure bikes.
Production Era:
The 655cc Pegaso models were primarily produced in the mid-to-late 1990s.
