Segment:
Sport Touring Motorcycle
Target Audience:
Riders seeking a blend of sportbike performance with comfortable touring capabilities, often enthusiasts familiar with Ducati's engineering.
Competitors:
Honda VFR series, Yamaha FJR, Kawasaki GTR, BMW R1200ST.
Engine Type:
Desmodromic L-Twin, Testastretta evolution.
Design Philosophy:
Combines sporty handling and braking with rider comfort and luggage capacity for long-distance travel.
Handling:
Renowned Ducati chassis dynamics, adjustable suspension.
Braking:
High-performance Brembo braking system.
Engine System:
Complete engine overhaul, disassembly, assembly, tuning, lubrication, cooling, fuel delivery, ignition system, desmodromic valve actuation.
Transmission Drivetrain:
Gearbox, clutch operation (hydraulic), final drive (chain), component inspection, maintenance, and repair.
Electrical System:
Wiring diagrams, component testing, battery, starter, alternator, lighting, instrumentation, ECU, sensors, actuators, fault diagnosis.
Suspension Steering:
Front fork (Marzocchi or Showa, depending on exact spec), rear shock absorber (Sachs or Öhlins option), linkages, bearings, steering head bearings, adjustments, rebuild procedures.
Braking System:
Front and rear disc brakes (Brembo calipers), hydraulic lines, master cylinders, fluid replacement, bleeding procedures, pad and rotor service.
Fuel System:
Fuel injection (Bosch), throttle bodies, fuel pump, injectors, fuel pressure regulator, evaporative emissions control (if applicable).
Exhaust System:
Component identification, removal, installation, catalyst converter (if equipped), lambda sensors.
Bodywork Frame:
Fairing removal and installation, seating, fuel tank, frame structure, subframe, component mounting.
Maintenance:
Scheduled maintenance intervals, oil changes, filter replacements, chain adjustment, brake fluid replacement, coolant service, spark plug replacement.
Troubleshooting:
Diagnostic flowcharts, symptom-based troubleshooting for common issues, electrical fault finding.
Repair:
Step-by-step instructions for component disassembly, repair, reassembly, and adjustment for all major vehicle systems.
Specifications:
Torque specifications for all fasteners, fluid capacities, electrical component resistance values, diagnostic trouble codes (DTCs).
Technical Data:
Detailed specifications for all mechanical and electrical components, including tolerances and wear limits.
Depth:
Comprehensive, covering basic maintenance to complete engine and gearbox rebuilds, including electrical diagnostics and tuning procedures.
Configuration:
L-Twin (90-degree V-twin)
Displacement:
998 cc (998 cubic centimeters)
Bore X Stroke:
98 x 66 mm
Valve Train:
Desmodromic, 4 valves per cylinder
Cooling System:
Liquid-cooled
Horsepower:
115 hp (approximate, 85 kW) @ 9,750 rpm
Torque:
70 lb-ft (approximate, 94 Nm) @ 7,750 rpm
Induction:
Electronic Fuel Injection (Bosch Motronic 2.8)
Throttle Body:
Dual throttle bodies, 54 mm diameter
Fuel Type:
Unleaded gasoline, minimum 95 RON (Octane Rating)
Fuel Capacity:
21 liters (5.5 US gal)
Clutch Type:
Wet, multi-plate, hydraulically operated
Final Drive:
Chain drive, 15/38 final ratio (example)
Gear Ratios:
Specific gear ratios available in manual (e.g., 1st: 32/15, 2nd: 27/17, 3rd: 24/19, 4th: 23/21, 5th: 22/23, 6th: 20/25)
Transmission Fluid Type:
SAE 75W-90, API GL-4 or GL-5 (refer to manual for exact specification and capacity)
Wheelbase:
1440 mm (approx. 56.7 inches)
Length:
2100 mm (approx. 82.7 inches)
Width:
800 mm (approx. 31.5 inches, excluding mirrors)
Seat Height:
820 mm (approx. 32.3 inches)
Dry Weight:
195 kg (approx. 430 lbs)
Curb Weight:
215 kg (approx. 474 lbs, with fluids)
Gross Vehicle Weight Rating:
N/A (Motorcycle specific)
Crash Test Data:
N/A (Motorcycle safety ratings are typically handled differently than cars)
ABS:
Optional ABS (Anti-lock Braking System) available on some models/trims.
Traction Control:
Not typically standard on this model.
Frame Construction:
Trellis frame, known for rigidity and stability.
Lighting:
Halogen headlamps, LED taillight.
Dashboard:
Analog tachometer, digital speedometer, multi-function LCD display for trip computer, clock, fuel level, coolant temperature.
ABS Availability:
Optional ABS system, providing enhanced safety during braking.
Diagnostics:
OBD-II (On-Board Diagnostics) port for fault code reading and data acquisition using appropriate diagnostic tools.
ECU:
Bosch Motronic 2.8 engine control unit managing fuel injection and ignition timing.
Oil Change:
Every 12,000 km (7,500 miles) or 12 months, whichever comes first.
Desmo Service:
Every 24,000 km (15,000 miles) or 24 months for valve clearance check and adjustment (critical Ducati procedure).
Belt Replacement:
Every 24,000 km (15,000 miles) or 24 months for timing belts.
Spark Plugs:
Check every 12,000 km (7,500 miles), replace as needed (refer to manual for specific type).
Engine Oil:
Fully synthetic SAE 10W-40 or 20W-50, API SG/SH/SJ or higher, JASO MA compliant (refer to manual for exact viscosity and specification based on climate).
Coolant:
Ethylene glycol-based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water.
Brake Fluid:
DOT 4 or DOT 5.1 (refer to manual for exact specification and change interval).
Clutch Fluid:
DOT 4 (same as brake fluid).
Fuel Pump Reliability:
Some early models may experience fuel pump issues; inspection and potential replacement recommended.
Desmo Service Adherence:
Crucial to adhere to Desmo service intervals for engine longevity. Neglect can lead to valve damage.
Wiring Harness Integrity:
Check wiring harnesses for chafing or corrosion, particularly around the steering head and under the seat.
Manufacturer:
Ducati Motor Holding S.p.A.
Legacy:
Renowned for L-twin engines, desmodromic valve actuation, and racing heritage.
Series Introduction:
The ST series (Sport Touring) was introduced to offer a more comfortable and practical Ducati for longer distances, building on their sportbike DNA.
St3 Development:
The ST3 was an evolution of the earlier ST2 and ST4 models, featuring an updated L-twin engine and improved ergonomics for touring.
Production Years:
2004-2007
Manufacturing Location:
Bologna, Italy
