Market Positioning:
Performance-oriented Italian motorcycle, a classic of its era, appealing to enthusiasts and collectors
Competitors:
Contemporary Ducati models, other Italian V-twins, and high-performance European motorcycles
Unique Selling Points:
Distinctive desmodromic valve system, powerful V-twin engine, Italian design and craftsmanship
Engine:
Complete overhaul, tuning, lubrication, cooling system, fuel system (Carburetor specifications and tuning), ignition system, valve adjustment, timing
Transmission:
Gearbox disassembly, assembly, lubrication, clutch operation and adjustment
Brakes:
Hydraulic system, disc brake servicing, pad replacement, fluid specifications, bleeding procedures
Electrical:
Wiring diagrams, component testing, starter motor, alternator, battery servicing, lighting system, ignition coil, CDI unit troubleshooting
Chassis And Suspension:
Front fork overhaul, rear shock absorber servicing, steering head bearing adjustment, swingarm maintenance, wheel bearing servicing
Fuel System:
Dell'Orto PHF 30mm carburetor servicing, jetting, float height, fuel tank maintenance, fuel lines
Exhaust System:
Muffler and header pipe servicing, gasket replacement
Maintenance:
Regular service intervals, lubrication points, filter changes, chain adjustment, spark plug replacement
Troubleshooting:
Diagnostic charts for common performance issues, starting problems, electrical faults
Repair:
Detailed step-by-step instructions for component disassembly, repair, and reassembly
Diagnostics:
Component testing procedures, electrical system diagnostics
Depth:
Comprehensive, covering full rebuilds and advanced diagnostics
Engine Type:
Air-cooled, 90-degree V-twin, four-stroke
Displacement:
864 cc (864 cubic centimeters)
Bore X Stroke:
88 mm x 71 mm
Desmodromic Valvetrain:
Yes, 2 valves per cylinder (pushrod actuated desmodromic)
Horsepower Claimed:
70 hp @ 7500 rpm (approximate, factory figures)
Torque Claimed:
7.3 kgm @ 5800 rpm (approximate, factory figures)
Carburetors:
2 x Dell'Orto PHF 30mm dual-throat carburetors
Fuel Type:
Unleaded gasoline (high octane recommended)
Oil Capacity:
2.5 Liters (5.3 US quarts) with filter change
Oil Type Recommendation:
SAE 20W-50 or SAE 10W-40 motorcycle specific oil
Safety Ratings:
N/A (Pre-modern era for official motorcycle safety ratings)
Braking System:
Hydraulic disc brakes front and rear
Front Brake Spec:
Single 260 mm disc with dual-piston caliper
Rear Brake Spec:
230 mm drum brake (early models) or 260 mm disc (later GTS models, check specific VIN)
Lighting System:
12V Halogen headlight, taillight, brake light, turn signals
Infotainment System:
N/A (Basic motorcycle instrumentation)
Instrumentation:
Speedometer, tachometer, oil pressure warning light, neutral indicator, turn signal indicators
Ignition System:
Bosch electronic ignition (CDI-based)
Oil Change Interval:
Every 3,000 - 5,000 km (1,800 - 3,000 miles) or annually
Valve Adjustment Interval:
Every 6,000 - 10,000 km (3,700 - 6,000 miles)
Spark Plug Replacement:
Every 8,000 - 12,000 km (5,000 - 7,500 miles)
Brake Fluid Type:
DOT 4 hydraulic brake fluid
Clutch Fluid Type:
DOT 4 hydraulic fluid (shared with brakes)
Desmodromic Wear:
Potential wear in the desmodromic rockers and shims, requiring precise adjustment
Electrical Reliability:
Original wiring can be prone to degradation over time; upgrades are common
Carburetor Tuning:
Dell'Orto carburetors require meticulous tuning for optimal performance and reliability
Engine Oil Leaks:
Vintage Ducatis can develop minor oil leaks from base gaskets or seals
Brand Origin:
Italian manufacturer founded in Bologna, Italy, by Aldo Ducati
Desmodromic Legacy:
Ducati is renowned for its pioneering use and mastery of the desmodromic valve system
Predecessor:
Ducati 750 GT and 750 Sport models
Development Context:
Evolved from the 750 series, aiming for improved performance and refinement
Gts Designation:
GTS typically indicated a more touring-oriented or slightly updated version
Production Period:
Circa 1975-1977
Manufacturing Location:
Bologna, Italy
