🏷️ Basic Information

Make:

Ducati

Model:

Indiana

Model Variants:

350 Indiana, 650 Indiana

Engine Displacement:

343.5 cc (350 Indiana), 647.2 cc (650 Indiana)

Engine Type:

Air-cooled, four-stroke, 90° V-twin, desmodromic valve actuation

Fuel System:

Carbureted (typically Dell'Orto PHF or PHM)

👋 Introduction

Segment:

Cruiser/Custom style motorcycle with Ducati's signature V-twin engine and desmodromic valve system.

Target Audience:

Enthusiasts seeking a distinctive Italian V-twin experience, owners requiring parts identification and sourcing for maintenance and restoration.

Competitors:

At the time of its release, it competed with other European and Japanese V-twins, offering a unique blend of performance and style.

Desmodromic Valves:

Iconic Ducati desmodromic valve system for precise valve control at high RPMs, contributing to characteristic engine performance.

Styling:

Distinctive cruiser styling with a focus on the V-twin engine, often featuring spoked wheels and comfortable ergonomics.

📋 Manual Details

Manual Type:

Parts List / Catalog

Language:

English

Format:

Printed Document (likely)

Estimated Page Count:

Approximately 100-200 pages (estimated based on typical Ducati parts catalogs of the era)

📖 Manual Coverage

Engine:

Cylinder head, cylinder, piston, crankshaft, connecting rods, camshafts, valves, timing gears, oil pump, oil filter, lubrication system, cooling system (air)

Fuel System:

Carburetors, fuel tank, fuel lines, fuel filter, petcock

Exhaust System:

Exhaust pipes, mufflers, mounting hardware

Transmission:

Gearbox, clutch, primary drive, final drive (chain)

Chassis:

Frame, swingarm, front forks, rear shock absorbers, steering head assembly

Wheels And Brakes:

Wheels (spoked), hubs, spokes, tires, front brake caliper, front brake disc, master cylinder, brake lines, rear brake drum (typical for the era)

Electrical System:

Ignition system (CDI), spark plugs, dynamo/alternator, starter motor, battery, wiring harness, lights (headlight, taillight, turn signals), switches, relays

Bodywork And Fittings:

Fuel tank, seat, side covers, fenders, handlebars, controls, instrument cluster, mirrors, footpegs

Part Identification:

Detailed diagrams with exploded views and corresponding part numbers for accurate identification and ordering.

Assembly Disassembly:

Visual guidance for component assembly and disassembly, crucial for parts replacement and repair.

Depth:

Component-level breakdown for all major motorcycle systems. Focuses on identification and listing of parts rather than repair procedures or torque specifications.

📊 Manual Specifications

File Format:

Likely printed paper; if digital, typically PDF

Print Quality:

Good quality paper with clear line drawings and legible text, typical of factory-issued parts catalogs.

Binding Type:

Stapled or perfect bound (for printed versions).

Paper Type:

Durable paper suitable for workshop environments.

⚙️ Engine Specifications

Engine Configuration:

90° V-twin, four-stroke, desmodromic 2 valves per cylinder

350 Indiana Horsepower:

Approx. 30-35 HP @ 8,000 RPM (estimated)

650 Indiana Horsepower:

Approx. 45-50 HP @ 7,000 RPM (estimated)

350 Indiana Torque:

Approx. 27-30 Nm @ 6,000 RPM (estimated)

650 Indiana Torque:

Approx. 48-52 Nm @ 5,500 RPM (estimated)

Carburetor Type:

Dual Dell'Orto PHF 30A or PHM 30 (typical)

Lubrication Type:

Wet sump

Ignition System:

Electronic ignition (CDI) with dual spark plugs per cylinder for efficient combustion.

🔧 Transmission

Gearbox:

5-speed constant mesh

Transmission Options:

N/A (Standard 5-speed)

Clutch Type:

Wet, multi-plate, hydraulically operated

Final Drive:

Chain drive

📐 Dimensions

Wheelbase:

Approx. 1400-1450 mm (depending on specific model year and variant)

Seat Height:

Approx. 760-780 mm

Dry Weight:

Approx. 170-185 kg (depending on model and fittings)

Fuel Tank Capacity:

Approx. 14-16 Liters

🛡️ Safety Features

Safety Features:

Standard for its era: robust frame, good braking components. Modern safety features not applicable.

Front Brake:

Single disc brake with 2-piston caliper (e.g., Brembo or Grimeca)

Rear Brake:

Drum brake

Frame Type:

Steel tube trellis frame

💡 Technology Features

Infotainment System:

Basic instrumentation: speedometer, tachometer, odometer, indicator lights.

Driver Assistance Features:

N/A for this model and era.

Connectivity Features:

N/A for this model and era.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000 km or 6 months (check specific manual for exact recommendation)

Desmo Service Interval:

Major desmodromic valve clearance checks and adjustments every 10,000-12,000 km. This is a critical Ducati maintenance procedure.

Engine Oil Type:

SAE 20W-50 or 10W-40 motorcycle-specific oil (e.g., Motul, Castrol, Agip) meeting API SG/SH or higher.

Engine Oil Capacity:

Approx. 2.0 - 2.5 Liters (check manual for precise capacity with filter change)

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid (for hydraulic clutch and front brake)

Gearbox Oil Type:

GL-4 or GL-5 gear oil (e.g., SAE 75W-90 or 80W-90)

Desmo Adjustment:

Requires specialized knowledge and tools for desmodromic valve clearance adjustment. Incorrect adjustment can lead to poor performance or engine damage.

Carburetor Tuning:

Carburetors (Dell'Orto) can require periodic tuning and cleaning to maintain optimal performance, especially with age.

Electrical Reliability:

As with many bikes of this era, aging wiring harnesses and connectors can sometimes lead to intermittent electrical issues.

Fuel System Aging:

Older fuel tanks may develop rust internally if not properly maintained; fuel lines can also degrade.

📚 Vehicle History

Ducati Legacy:

Ducati has a long and storied history in motorcycle manufacturing, renowned for its V-twin engines, desmodromic valve systems, and racing heritage.

Indiana Development:

The Indiana series was Ducati's foray into the cruiser market, aiming to blend Italian engineering and style with a more relaxed riding posture. It was developed to appeal to a broader audience than their sportier models.

Production Years:

Mid-1980s (approximately 1986-1988)

Manufacturing Location:

Bologna, Italy

🏆 Awards & Recognition

Awards And Recognitions:

While the Indiana itself may not have specific widely publicized awards, it represents Ducati's expansion into the cruiser segment and embodies the brand's commitment to V-twin technology and design.