Market Segment:
Classic European sportbikes, enthusiast-focused maintenance and repair
Value Proposition:
Provides essential technical information for owners to maintain and repair their vintage Ducati motorcycles, reducing reliance on specialized (and potentially scarce) mechanics.
Detail And Scope:
Extensive coverage of both 350cc and 650cc engine variants, addressing mechanical and electrical aspects in depth.
Usability:
Well-structured with a superb table of contents for efficient navigation and information retrieval.
Engine Coverage:
350cc and 650cc engine variants
Transmission Coverage:
All gearbox and final drive configurations
Chassis Coverage:
Frame, suspension (front and rear), steering, wheels, and brakes
Electrical Coverage:
Wiring diagrams, ignition system, lighting, instrumentation, and battery
Bodywork Coverage:
Body panels, fuel tank, seat, fenders, and exhaust system
Estimated Pages:
Hundreds (specific number not provided, but implies comprehensive)
Type:
Service Repair Manual
Language:
English (Implied by product description and common industry practice for service manuals)
Engine Systems:
Engine assembly, disassembly, tuning, carburetor service, valve clearance, cooling systems (air-cooled), lubrication, starting system
Fuel System:
Fuel tank, fuel lines, petcock, carburetor specifications and adjustment
Transmission And Drivetrain:
Gearbox disassembly and assembly, clutch operation, final drive chain and sprockets
Braking System:
Hydraulic brake system, caliper service, master cylinder service, brake pad replacement, disc inspection
Suspension And Steering:
Front fork service (seals, oil changes), rear shock absorber service, steering head bearing adjustment
Electrical System:
Battery charging, ignition timing, lighting circuits, indicator operation, wiring harness troubleshooting
Instrumentation:
Speedometer, tachometer, warning lights, and their associated electrical connections
Routine Maintenance:
Oil changes, filter replacement, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement
Troubleshooting:
Diagnostic procedures for common and uncommon faults across all systems
Rebuilding And Restoration:
Complete engine rebuilds, gearbox overhauls, carburetor rebuilding
Component Replacement:
Step-by-step instructions for replacing major and minor components
Depth:
Comprehensive, covering basic maintenance to full engine rebuilds and diagnostics
Detail Level:
Detailed diagrams, specifications, torque values, and step-by-step instructions
Engine Type:
Air-cooled, four-stroke, L-twin (V-twin) Desmodromic engine
Bore Stroke 350:
Typically around 74mm x 80mm (subject to specific model variant, requires manual verification for exact figures)
Bore Stroke 650:
Typically around 84mm x 57mm (subject to specific model variant, requires manual verification for exact figures)
Horsepower 350:
Approx. 28-32 HP (subject to specific model variant, requires manual verification)
Horsepower 650:
Approx. 44-48 HP (subject to specific model variant, requires manual verification)
Torque 350:
Varies, but typically in the 25-30 Nm range (requires manual verification)
Torque 650:
Varies, but typically in the 40-45 Nm range (requires manual verification)
Carburetion:
Typically dual Dell'Orto PHB or PHF carburetors (specific sizes vary by model year and engine size, e.g., 29mm, 30mm, 32mm)
Fuel Type:
Unleaded gasoline (historical context might suggest leaded, manual will clarify for specific years)
Oil Type:
Viscosity and API rating will be specified in the manual (e.g., SAE 20W-50 or similar motorcycle-specific oil)
Oil Capacity:
Engine oil capacity will be detailed in the manual (typically around 2-3 liters for these models)
Wheelbase:
Varies by model year, expect around 1400-1450 mm (requires manual verification)
Seat Height:
Varies by model year, expect around 780-820 mm (requires manual verification)
Dry Weight:
Typically around 170-185 kg (requires manual verification)
Safety Ratings:
N/A (Motorcycles from this era did not undergo formal crash testing like modern cars)
Braking System:
Hydraulic disc brakes front and rear (typical setup, specific caliper counts may vary)
Suspension Stability:
Designed for stability under braking and cornering, though advanced electronic aids are absent.
Lighting:
Headlight, taillight, brake light, turn signals (standard features for road legality)
Infotainment System:
None. This era of motorcycle predates integrated infotainment systems.
Driver Assistance Systems:
None. No ABS, traction control, or other electronic rider aids.
Connectivity Features:
None. Basic electrical systems.
Instrument Cluster:
Analog speedometer, tachometer, odometer, trip meter, and warning lights (oil pressure, neutral, turn signals).
Oil Change Interval:
Typically every 3,000-5,000 km or annually (manual will specify exact mileage and time)
Valve Clearance Interval:
Every 6,000-10,000 km, crucial for Desmodromic engines (manual is essential for precise intervals and procedures)
Chain Maintenance:
Lubrication every 500-1000 km, adjustment as needed based on slack.
Engine Oil Viscosity:
Refer to manual; typically SAE 20W-50 or similar. Important to use a motorcycle-specific oil with anti-wear additives.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (manual will specify exact type).
Fork Oil Type:
Specific SAE viscosity and quantity will be in the manual (e.g., SAE 10W or 15W).
Desmo Valve Adjustment:
Requires precise adjustment; incorrect clearance can lead to poor running or engine damage. Manual is critical for this procedure.
Carburetor Tuning:
Dell'Orto carburetors can be sensitive and require proper synchronization and jetting for optimal performance. Manual provides specifications.
Electrical Connections:
Older wiring harnesses can degrade; the manual's wiring diagrams are invaluable for troubleshooting.
Ducati Legacy:
Ducati has a rich history in performance motorcycles, particularly known for its L-twin engines and racing heritage.
Alazzurra Placement:
The Alazzurra was part of Ducati's line of sport-touring or more accessible road bikes, bridging the gap between smaller capacity models and the full-on superbikes.
Production Years:
Early to mid-1980s (specific years for 350 and 650 variants vary, typically 1982-1987 range)
Manufacturing Location:
Bologna, Italy
