Segment:
Performance Sportbike
Target Audience:
Enthusiasts, DIY mechanics, professional motorcycle technicians
Key Competitors Era:
Suzuki RF900R, Yamaha YZF1000R Thunderace, Kawasaki ZX-9R
Distinctive Features:
Iconic Ducati V-twin engine, trellis frame, high-quality components, sporting heritage
Manual Benefit:
Empowers owners and technicians with the knowledge to maintain, diagnose, and repair the Ducati 900 Supersport efficiently and correctly, preserving its performance and longevity.
Engine:
Complete engine overhaul, disassembly, assembly, diagnosis, tuning
Fuel System:
Carburetor (Dell'Orto PHM 40) service, adjustment, cleaning, fuel pump, fuel lines
Ignition System:
Ignition timing, spark plugs, coils, electronic control unit (ECU)
Transmission:
Clutch operation, gearbox disassembly, assembly, lubrication, maintenance
Chassis:
Frame inspection, steering head bearing service, fork disassembly, seal replacement, shock absorber service
Brakes:
Front and rear brake system service, caliper overhaul, master cylinder replacement, bleeding procedures, disc inspection
Electrical System:
Wiring diagrams, lighting, instrumentation, battery, starter, alternator, fuses
Cooling System:
Air cooling system principles, fin cleaning, engine temperature management
Exhaust System:
Exhaust pipe removal, replacement, gasket service
Wheels And Tires:
Tire pressure, wheel bearing inspection and replacement, rim maintenance
Bodywork:
Fairing removal and installation, seat, fuel tank maintenance
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug checks, chain adjustment
Troubleshooting:
Diagnostic flowcharts, common problems, symptom-based troubleshooting
Repair:
Detailed step-by-step repair procedures for all major components
Disassembly Assembly:
Comprehensive instructions for dismantling and reassembling all vehicle systems
Adjustments:
Carburetor synchronization, valve clearance adjustments (if applicable for the model year), clutch lever adjustment
Specifications:
Torque values, fluid capacities, wear limits, critical measurements
Diagrams Illustrations:
Detailed exploded views, pictorial diagrams, wiring schematics, and photographs
Depth:
Comprehensive, from basic maintenance to in-depth engine and component rebuilds. Includes factory specifications and procedures.
Engine Type:
Air-cooled, 90-degree L-twin (Desmodromic valve actuation)
Displacement:
904 cc (55.2 cu in)
Bore X Stroke:
92 mm x 68 mm (3.62 in x 2.68 in)
Horsepower Est:
Approx. 76 hp @ 7200 rpm (This is an estimated range, actual may vary based on specific model year and tuning)
Torque Est:
Approx. 53 lb-ft @ 6000 rpm (This is an estimated range, actual may vary)
Carburetion:
2 x Dell'Orto PHM 40 (PHM 40 CS)
Fuel Type:
Unleaded gasoline
Oil Type Spec:
Refer to manual for specific viscosity and API classification (typically SAE 20W-50 or similar)
Oil Capacity:
Approx. 3.5 liters (3.7 US qt) with filter change
Instrumentation:
Analog tachometer, speedometer, odometer, trip meter, warning lights (oil pressure, neutral, turn signals, high beam)
Electronic Aids:
Minimal electronic aids typical for the era; focused on mechanical feedback and rider input.
Oil Change Interval:
Refer to manual; typically every 6,000-10,000 km (3,700-6,200 miles) or annually, whichever comes first.
Valve Clearance Check:
Refer to manual; often around 10,000-12,000 km (6,200-7,500 miles) for desmodromic engines, or as specified.
Timing Belt Replacement:
Refer to manual; critical maintenance item, typically every 10,000-12,000 km (6,200-7,500 miles) or 2-3 years.
Engine Oil:
Refer to manual for specific viscosity and API rating (e.g., SAE 20W-50, API SG or higher)
Clutch Fluid:
DOT 4 (if hydraulic clutch)
Gearbox Oil:
Refer to manual for specific viscosity and type (often gear oil).
Common Problems:
Timing belt wear/failure (critical maintenance), carburetor synchronization issues, electrical connector corrosion, potential clutch slave cylinder leaks, wear on desmodromic valve system components with high mileage.
Heritage:
Ducati is renowned for its L-twin engines, trellis frames, racing pedigree, and iconic Italian design.
Model Lineage:
The 900 Supersport is part of Ducati's long-standing tradition of air-cooled V-twin sportbikes, building on the legacy of models like the 750 Sport and preceding the Multistrada and Monster lines in terms of engine architecture.
Production Period:
The 900 Supersport model was produced through various iterations from the early 1990s until the early 2000s, with the M900 version encompassing the years 1999-2002.
