Segment:
Sportbike / Superbike
Target Audience:
Enthusiasts, collectors, and owners seeking to maintain or restore the Ducati 900 SS Desmo Super Sport.
Contemporary Competitors:
Kawasaki Z1, Honda CB750, Moto Guzzi V7 Sport, Laverda Jota.
Engine Architecture:
Iconic Desmodromic L-Twin engine.
Design Philosophy:
Performance-oriented sportbike with distinctive Italian styling and engineering.
Engine:
Complete engine overhaul, disassembly, assembly, timing, valve adjustments (Desmodromic system specifics).
Fuel System:
Carburetor identification, removal, cleaning, adjustment, fuel pump, fuel lines.
Ignition System:
Ignition timing, spark plugs, coil testing, breaker points (if applicable).
Transmission:
Gearbox disassembly, assembly, lubrication, clutch operation and adjustment.
Electrical System:
Wiring diagrams, component testing, charging system, lighting, battery.
Brakes:
Brake system overhaul, fluid replacement, caliper maintenance, pad replacement, disc inspection.
Suspension:
Front fork service (oil, seals), rear shock absorber adjustment and maintenance.
Frame And Bodywork:
Frame inspection, fairing removal/installation, seat, fenders.
Wheels And Tires:
Wheel bearing service, tire pressure recommendations.
Maintenance:
Routine servicing, lubrication, inspections, fluid changes.
Troubleshooting:
Diagnostic procedures for common problems, identification of symptoms and causes.
Repair:
Step-by-step repair instructions for all major components.
Disassembly And Assembly:
Detailed procedures for taking apart and reassembling vehicle components.
Adjustments:
Carburetor synchronization, ignition timing, chain tension, suspension settings.
Depth:
Comprehensive: Covers from basic maintenance to complete engine rebuilds and detailed diagnostics. Suitable for DIY enthusiasts and professional mechanics.
Special Tools:
Includes references and illustrations for specialized tools required for specific procedures.
Diagrams And Illustrations:
Features detailed exploded diagrams, pictorial illustrations, and photographs guiding through procedures.
Type:
Air-cooled, L-twin, Desmodromic valve actuation
Displacement:
860 cc (later variants up to 900 cc)
Bore X Stroke:
Typically around 86 mm x 74.4 mm for the 860 GT/E which evolved into the 900 SS.
Horsepower Approximate:
Around 70-75 HP at 7,500 RPM (varies slightly by specific model year and tuning).
Torque Approximate:
Around 70 Nm (52 lb-ft) at 6,000 RPM.
Carburetors:
Dual Dell'Orto PHF 36 (or similar size, model variant dependent).
Fuel Delivery:
Mechanical fuel pump.
Type:
Electronic ignition or contact breaker points depending on exact year/variant.
Oil Change:
Refer to manual, typically every 3,000-5,000 km (1,800-3,000 miles) or annually.
Valve Adjustment:
Critical for Desmodromic engines; refer to manual, typically every 5,000-10,000 km (3,000-6,000 miles).
Engine Oil Type:
SAE 20W-50 or 10W-40 motorcycle specific oil (refer to manual for precise recommendation).
Engine Oil Capacity:
Approximately 2.0-2.5 liters (dry fill).
Brake Fluid:
DOT 3 or DOT 4 (refer to manual).
Fork Oil:
Viscosity and type specified in manual (e.g., SAE 10W or 15W).
Desmodromic System:
Requires precise adjustment; wear in shims or rockers can lead to noise or performance issues.
Carburetor Sync:
Crucial for smooth running; carburetors can go out of sync over time.
Electrical Connections:
Older bikes may suffer from corrosion or worn connections impacting reliability.
Drum Brakes Rear:
Rear brake is often a drum; requires regular adjustment and maintenance.
Clutch Wear:
Dry clutch can be prone to wear with aggressive use.
Legacy:
Ducati is renowned for its performance motorcycles, L-twin engines, and racing heritage.
Predecessor:
Evolved from the Ducati 750 GT and 860 GT/GTE models.
Development:
The 900 SS was designed as a more sporting and race-inspired version of the existing L-twin platform, featuring improved chassis and engine tuning.
Production Years:
1975-1982 (original generation of 900 SS).
Manufacturing Location:
Bologna, Italy.
