Positioning:
The Ducati 350 Scrambler was positioned as an accessible, off-road capable machine in Ducati's diverse motorcycle lineup of the late 1960s, appealing to riders seeking versatility.
Competitors:
Competed with other European and British lightweight dual-sport and scrambler-style motorcycles of the era.
Distinctive Elements:
Characterized by its distinctive L-twin engine, dual exhaust pipes, high-mounted handlebars, and often knobby tires, it offered a unique blend of Italian style and rugged capability.
Primary Coverage:
Maintenance, repair, overhaul, and troubleshooting for the Ducati 350 Scrambler (1968).
Secondary Coverage:
Electrical system, chassis components, routine servicing.
Estimated Pages:
150-250 (typical for comprehensive service manuals of this era).
Type:
Service & Repair Manual
Language:
Italian ('intretinere' means maintenance in Italian), likely with potential for English translation depending on specific product version.
Format:
Likely a scanned reproduction of an original printed manual, distributed as a PDF.
Engine Mechanical:
Detailed disassembly, inspection, and reassembly of the engine, including cylinder head, pistons, connecting rods, crankshaft, camshaft, and valve train.
Carburetion:
Adjustment, cleaning, and overhaul of the Dell'Orto or similar carburetors fitted to the 350 Scrambler.
Ignition System:
Spark plug specifications, timing procedures, contact breaker adjustment, ignition coil and wiring diagrams.
Fuel System:
Fuel tank, fuel lines, and petcock maintenance.
Transmission:
Gearbox disassembly, inspection, lubrication, and adjustment, including clutch operation.
Chassis Suspension:
Front fork overhaul, rear shock absorber maintenance, bearing lubrication and adjustment.
Brakes:
Drum brake adjustment and lining replacement, brake cable maintenance.
Electrical System:
Wiring diagrams, lighting system, charging system (generator/alternator), battery maintenance.
Bodywork And Fittings:
Fender mounting, seat removal, handlebar and control adjustments.
Routine Maintenance:
Oil changes, filter cleaning/replacement, chain adjustment, spark plug checks, brake adjustments.
Troubleshooting:
Diagnostic tables and guidance for common problems such as starting issues, poor running, and electrical faults.
Engine Rebuild:
Comprehensive instructions for a complete engine overhaul, including torque specifications and clearances.
Carburetor Tuning:
Step-by-step guides for jetting and float level adjustments.
Electrical Diagnostics:
Procedures for testing ignition and charging systems.
Depth:
Comprehensive, covering everything from basic adjustments to complete engine and gearbox rebuilds. Suitable for experienced mechanics and dedicated enthusiasts.
Digital Format:
PDF (Portable Document Format).
Scanned Quality:
Varies based on the original source material. Expect clear text and diagrams, though some degradation from original print may be present.
Original Binding:
Typically saddle-stitched or perfect bound for original factory manuals.
Original Paper:
Often printed on durable, coated paper stock designed for workshop environments.
Configuration:
Air-cooled, 90-degree L-twin (or V-twin, depending on interpretation of the 'L' designation), overhead valve (OHV) pushrod actuated.
Bore X Stroke:
64.0 mm x 64.0 mm (approximately).
Compression Ratio:
Typically around 8.5:1.
Horsepower:
Approximately 26-28 HP at 7000 RPM.
Torque:
Approximately 26 Nm (19 lb-ft) at 5000 RPM.
Carburetor:
Single Dell'Orto VHB 27 or similar.
System Type:
Coil and breaker points, typically 12V.
Crash Safety:
No standardized crash ratings available for motorcycles of this era.
Braking System:
Front and rear drum brakes.
Lighting:
Headlight, taillight, brake light, turn signals (may vary by market and original specification).
Oil Change:
Every 3,000 km or annually. Consult manual for specific oil type and viscosity.
Valve Clearance Check:
Typically every 6,000 km or annually. Specific clearances detailed in the manual.
Chain Lubrication And Adjustment:
Every 1,000 km or as needed, depending on riding conditions.
Engine Oil:
SAE 20W-50 or similar, API SG or higher. Consult manual for exact specification.
Gearbox Oil:
GL-4 80W-90 gear oil. Consult manual for capacity.
Brake Fluid:
DOT 3 or DOT 4 for master cylinder reservoir (if applicable for rear drum actuator). Consult manual.
Carburetor Wear:
Dell'Orto carburetors can experience wear in throttle slides and needle jets, leading to inconsistent fueling.
Electrical Connections:
Corrosion and looseness in older wiring harnesses can cause intermittent electrical faults.
Engine Oil Leaks:
Seals and gaskets on the L-twin engine can degrade over time, leading to minor oil leaks.
Drum Brake Performance:
Drum brakes of this era offer less stopping power than modern disc brakes and require diligent adjustment.
Ducati Legacy:
Ducati has a long and storied history of producing distinctive and performance-oriented motorcycles, originating in Bologna, Italy.
Scrambler Lineage:
The 350 Scrambler was part of Ducati's effort to expand its market reach into dual-purpose and off-road capable segments, building on their established engine designs.
Production Years:
The 350 Scrambler was produced for a limited period in the late 1960s and early 1970s, making it a less common model today.
Manufacturing Location:
Bologna, Italy.
Historical Accolades:
While specific awards for the 350 Scrambler are not widely documented, Ducati motorcycles of this era were recognized for their engineering and performance within their class.
Contemporary Reviews:
Reviews from the period would likely have focused on its handling, engine character, and off-road capability relative to its contemporaries.
Manufacturing Standards:
Manufactured to Ducati's internal quality and engineering standards of the time.
