🏷️ Basic Information

Make:

Ducati

Model:

ST3

Year:

2004

Market:

USA

Product Type:

Parts Manual

👋 Introduction

Positioning:

The Ducati ST3 was positioned as a sport-touring motorcycle, blending performance with comfort for longer rides. It offered a more accessible entry point into Ducati ownership compared to their pure sportbikes.

Competitors:

Competed against other sport-touring motorcycles of the era, such as the Honda VFR, Yamaha FJR1300, and Kawasaki GTR series. Its key differentiators were the Ducati V-twin engine character and handling.

Features:

Liquid-cooled L-twin engine, trellis frame, adjustable suspension, comfortable riding position for a Ducati, capable of both spirited riding and touring.

📋 Manual Details

Coverage:

Comprehensive parts breakdown for all major assemblies and components of the Ducati ST3 (USA, 2004 model year).

Pages:

Estimated 300-500 pages (typical for this type of manual). Specific count not provided in product info.

Type:

Parts Manual / Catalog

Language:

English

Format:

Likely Digital (PDF) based on common sales practices for older manuals, though Print version may exist.

📖 Manual Coverage

Engine:

Engine internal components, cylinder heads, crankcase, lubrication system, fuel injection system (Ducati's proprietary system), ignition system, exhaust system components.

Transmission:

Gearbox internals, clutch assembly (dry clutch specific to Ducati), shift mechanism, drive chain and sprockets.

Chassis And Frame:

Frame components, swingarm, rear shock absorber, linkage, footpegs, seat assembly, fuel tank and mountings.

Suspension:

Front forks (showa or similar, depending on exact build specification), steering head, triple clamps, wheel bearings.

Brakes:

Front and rear brake calipers (likely Brembo), master cylinders, brake lines, rotors, brake fluid reservoirs, ABS components (if equipped).

Electrical System:

Wiring harness, battery, starter motor, alternator, lights (headlight, taillight, indicators), switches, instrument cluster components, ECU and sensors.

Bodywork:

Fairings, tank covers, seat cowl, fenders, handlebars, mirrors, windscreen, trim pieces, fasteners.

Wheels And Tires:

Wheels (front and rear), wheel hubs, spokes (if applicable), tire sizes, valve stems.

Part Identification:

Detailed diagrams with exploded views and corresponding part numbers for every component.

Assembly Disassembly:

Illustrates the sequence of assembly and disassembly for various sub-assemblies, crucial for parts replacement.

Fastener Specs:

Identification of specific fasteners (bolts, nuts, washers) used in different areas, often with torque values implicitly referenced through assembly diagrams.

Depth:

Highly detailed, focusing on visually identifying and ordering correct replacement parts. While not a 'how-to' repair manual, it is indispensable for understanding component relationships and ordering.

📊 Manual Specifications

File Quality:

Likely high-resolution scans of original documents, ensuring clarity of diagrams and text. Searchable text functionality is common in PDF versions.

Print Options:

Printable pages, allowing users to create physical copies of specific sections or the entire manual for workshop use.

Binding:

If printed: Spiral-bound or comb-bound for lay-flat readability in a workshop environment. If digital: PDF with bookmarks for easy navigation.

Paper Quality:

If printed: Durable, high-quality paper suitable for workshop conditions (e.g., glossy or semi-gloss paper for diagrams).

⚙️ Engine Specifications

Engine Type:

Four-stroke, L-twin (90-degree V-twin), Desmodromic valve actuation

Displacement:

992 cc (992cc)

Bore X Stroke:

98 mm x 66 mm

Valve Train:

2 valves per cylinder, Desmodromic

Horsepower:

Approximately 107 HP (at crank) at 8,750 rpm

Torque:

Approximately 71 lb-ft (96 Nm) at 6,750 rpm

Fuel Delivery:

Fuel injection, Marelli electronic control unit (ECU)

Fuel Type:

Unleaded gasoline, 95 RON minimum

Oil Type:

Semi-synthetic or fully synthetic motorcycle oil, SAE 10W-40 or 15W-50, meeting API SG or higher, JASO MA specification.

Cooling:

Liquid-cooled

🔧 Transmission

Type:

6-speed sequential

Clutch:

Dry multi-plate clutch, hydraulically operated

Final Drive:

Chain drive

Gear Ratios:

Specific ratios vary by gear, but designed for balanced sport-touring performance.

Transmission Oil:

Typically uses the same oil as the engine, or a separate gearbox oil for some models. Refer to service manual for definitive specification. If shared, then engine oil specification applies.

📐 Dimensions

Length:

Approx. 2130 mm (83.9 in)

Width:

Approx. 760 mm (29.9 in) at handlebars

Height:

Approx. 1240 mm (48.8 in) at windscreen

Wheelbase:

Approx. 1475 mm (58.1 in)

Dry Weight:

Approx. 185 kg (408 lbs)

Wet Weight:

Approx. 205 kg (452 lbs) (fully fueled, with standard fluids)

Tank Capacity:

21 liters (5.5 US gal)

🛡️ Safety Features

Crash Safety:

Motorcycles are not typically rated by organizations like NHTSA or IIHS. Safety relies on design and rider skill. Parts manual does not cover safety ratings.

Braking System:

Dual 320mm discs with four-piston calipers (front), Single 245mm disc with two-piston caliper (rear). ABS was an optional feature on some models.

Suspension Features:

Fully adjustable front forks (preload, compression, rebound) and rear monoshock (preload, rebound) for optimized handling and stability.

Lighting:

Halogen headlight, LED taillight, amber front and rear turn signals.

Frame Design:

Chromium-molybdenum steel trellis frame providing rigidity and excellent feedback.

💡 Technology Features

Instrument Cluster:

Analog tachometer, digital speedometer, odometer, trip meters, coolant temperature gauge, clock, basic indicator lights. No advanced infotainment system.

ABS:

Anti-lock Braking System (ABS) was an optional feature on the ST3, enhancing safety.

Connectivity Features:

No integrated Bluetooth or smartphone connectivity; standard motorcycle wiring for lights and ignition.

🔧 Maintenance

Oil Change Interval:

Typically every 7,500 miles (12,000 km) or annually, whichever comes first. Always consult the official service manual for precise intervals.

Desmo Service Interval:

Desmodromic valve clearance check and adjustment typically every 7,500 miles (12,000 km) or annually. This is a critical Ducati maintenance item.

Belt Replacement Interval:

Timing belts typically require replacement every 15,000 miles (24,000 km) or 3-5 years, due to aging of the rubber material.

Brake Fluid:

DOT 4 synthetic brake fluid.

Coolant:

Ethylene glycol-based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water. Consult manual for specific Ducati coolant or equivalent.

Clutch Fluid:

DOT 4 synthetic brake fluid (often shares reservoir with front brake).

Fuel Pump Reliability:

Some owners reported early fuel pump failures. Regular fuel level maintenance can help prevent premature wear.

Electrical Gremlins:

As with many European motorcycles of this era, occasional minor electrical issues can arise due to vibration or component aging. Proper maintenance of connections is key.

Desmo Service:

Failure to adhere to Desmodromic valve adjustment intervals can lead to poor running, reduced performance, and potential valve damage. This is a crucial but often overlooked service for new Ducati owners.

Example Oil Filter:

Ducati Part Number may be specific; e.g., 444.1.008.1A or equivalent Hiflofiltro HF153.

Example Air Filter:

Ducati Part Number may be specific; e.g., 426.1.023.1A or equivalent K&N filter like DU-9001.

📚 Vehicle History

Heritage:

Ducati has a long and storied history in motorcycle racing and performance road bikes, renowned for its L-twin engines and distinctive Italian design.

Evolution:

The ST3 was part of Ducati's ST (Sport Touring) line, evolving from earlier models like the ST2 and ST4. It introduced the 992cc engine, offering a more tractable power delivery for touring compared to the higher-strung sportbikes.

Production Years:

The ST3 model line was produced roughly from 2003 to 2007.

Manufacturing Location:

Bologna, Italy

🏆 Awards & Recognition

Motorcycle Reviews:

While specific 'awards' are rare for individual model years, the Ducati ST3 generally received positive reviews for its blend of performance, handling, and comfort, establishing itself as a credible sport-tourer within the Ducati lineup.

Reliability Perception:

Ducati reliability in the mid-2000s was improving, but still required diligent maintenance, particularly the desmodromic valve system. This parts manual is essential for owners who embrace this maintenance philosophy.

Emissions Compliance:

Designed to meet US EPA and California ARB emissions standards for motorcycles of its model year.