Motorcycle Segment:
Sport Touring
Target Audience:
Owners and independent mechanics performing maintenance and repairs on the Ducati ST3.
Competitors:
Typically competed against motorcycles like the Honda VFR series, Kawasaki GTR series, and Yamaha FJR series in its segment.
Design Philosophy:
Combines Ducati's signature performance and styling with a more comfortable ergonomics suitable for longer journeys.
Engine Configuration:
Known for its L-twin engine, offering characteristic torque delivery and sound.
Luggage System:
Designed to accommodate integrated luggage systems for touring, a key aspect of its sport-touring designation.
Engine:
Comprehensive coverage of engine disassembly, assembly, tuning, and troubleshooting for the Ducati ST3.
Fuel System:
Detailed information on fuel injection system, fuel pump, injectors, pressure regulator, and related components.
Ignition System:
Coverage of ignition coils, spark plugs, ECU control, and diagnostic procedures.
Transmission:
In-depth procedures for clutch operation, gearbox disassembly, assembly, and lubrication.
Chassis And Suspension:
Detailed guides for front forks (including seals and oil), rear shock absorber, swingarm, and linkage maintenance.
Brakes:
Complete coverage of hydraulic brake systems, including master cylinders, calipers, brake fluid bleeding, and disc/pad replacement.
Electrical System:
Extensive diagrams and troubleshooting for the wiring harness, lighting, battery, starter motor, alternator, and ECU.
Cooling System:
Information on radiator, cooling fan, thermostat, and coolant circulation procedures.
Exhaust System:
Details on exhaust component removal, installation, and torque specifications for mounting hardware.
Bodywork And Fairings:
Instructions for the removal and installation of body panels, fairings, seat, and fuel tank.
Routine Maintenance:
Includes oil changes, filter replacements, chain adjustments, spark plug replacement, and brake fluid flushes.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, including electrical faults and engine performance problems.
Engine Repair:
Detailed steps for internal engine components such as pistons, connecting rods, crankshaft, and valve adjustments.
Transmission Repair:
Complete guide to gearbox component replacement, bearing checks, and seal replacements.
Suspension And Steering Overhaul:
Procedures for rebuilding front forks, servicing rear suspension units, and checking steering head bearings.
Brake System Overhaul:
Detailed instructions for caliper rebuilding, master cylinder replacement, and hydraulic line flushing.
Electrical Diagnostics:
Guidance on using multimeters, checking sensor signals, and tracing wiring faults.
Component Removal And Installation:
Step-by-step instructions for replacing virtually all major and minor components.
Torque Specifications:
Extensive list of torque values for critical fasteners throughout the motorcycle.
Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds, including electrical diagnostics and troubleshooting.
Manual Description:
This is a comprehensive workshop service and repair manual, designed for professional mechanics and experienced DIY enthusiasts. It goes beyond basic owner's manual information, providing in-depth technical procedures, specifications, and diagnostic aids.
Engine Type:
Liquid-cooled, four-stroke, Testastretta L-twin
Displacement:
992 cc (60.5 cubic inches)
Bore X Stroke:
98 mm x 66 mm
Valve Train:
Desmodromic, 4 valves per cylinder
Horsepower:
Approximately 107 hp @ 8750 rpm (varies slightly by model year and specific configuration)
Torque:
Approximately 95 Nm (70 lb-ft) @ 6750 rpm (varies slightly by model year and specific configuration)
Fuel Delivery:
Electronic Fuel Injection (Weber Marelli or similar)
Fuel Type:
Unleaded gasoline, minimum 95 RON (octane rating)
Oil Type:
Fully synthetic motorcycle oil, SAE 10W-40 or 15W-50, meeting Ducati's specifications (e.g., API SG, JASO MA).
Oil Capacity:
Approximately 3.5 liters (3.7 US qt) with filter change.
Cooling System Type:
Liquid-cooled
Oil Change Interval:
Recommended every 7,500 miles (12,000 km) or annually.
Desmo Service Interval:
Major Desmodromic valve clearance checks and adjustments typically every 7,500 miles (12,000 km), though the manual will specify the exact interval for this model.
Belt Replacement:
Timing belt replacement is a critical maintenance item, usually recommended every 7,500 miles (12,000 km) or 2 years.
Brake Fluid:
DOT 4 hydraulic brake fluid.
Coolant:
Ethylene glycol-based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water.
Clutch Fluid:
DOT 4 hydraulic fluid (shared with brake system).
Electrical Gremlins:
Some owners report occasional minor electrical issues, often related to connectors or grounds; the manual addresses common electrical troubleshooting.
Desmo Service Cost:
Desmodromic valve adjustments can be labor-intensive and costly if not performed by experienced technicians; the manual provides the procedures for DIY.
Fuel Pump Reliability:
While generally robust, fuel pump issues can occur over time; the manual details its inspection and replacement.
Brand Identity:
Ducati is renowned for its L-twin engines, desmodromic valve actuation, Italian design, and racing heritage.
St Series:
The ST series (Sport Touring) represented Ducati's entry into the sport-touring market, blending performance with practicality.
St3 Introduction:
The ST3 succeeded the ST2 and introduced the larger 992cc Testastretta engine, offering a significant power and torque upgrade.
Manufacturing Location:
Bologna, Italy
Production Years:
The ST3 was produced from approximately 2003 to 2007.
