Market Segment:
Sport Touring Motorcycle
Target Audience:
Riders seeking a blend of sportbike performance with long-distance comfort and practicality.
Key Competitors Era:
BMW R1150RT, Honda VFR800/VFR1200F, Kawasaki GTR1400, Yamaha FJR1300.
Distinctive Attributes:
Powerful V-twin engine, advanced chassis design, integrated ABS, comfortable ergonomics for touring, premium Italian styling.
Model Significance:
Represents Ducati's strong offering in the sport-touring segment, known for performance and handling.
Engine Systems:
Engine operation, lubrication, cooling, fuel system, ignition system, exhaust system, performance tuning basics.
Drivetrain Systems:
Transmission operation, clutch operation, chain drive maintenance, final drive adjustments.
Chassis Systems:
Frame, suspension (front and rear), steering, wheel bearings, triple clamps.
Braking Systems:
Hydraulic brake system, ABS system operation, brake fluid specifications, pad wear indicators, disc inspection.
Electrical Systems:
Battery, charging system, lighting, starting system, instrumentation, fuses, relays, basic wiring diagrams (for owner level).
Fuel System:
Fuel injection system components, fuel filter replacement, fuel tank and cap.
Cooling System:
Radiator, coolant type and capacity, fan operation, thermostat.
Exhaust System:
Muffler, catalytic converter (if applicable), exhaust pipe inspection.
Bodywork And Trim:
Fairing removal and installation (basic), seat, luggage system compatibility.
Routine Maintenance:
Oil and filter change, spark plug replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake fluid check, tire pressure checks.
Inspections:
Pre-ride inspection checklist, brake pad wear inspection, tire condition checks, fluid level checks, fastener torque checks.
Troubleshooting Basics:
Common operational issues and potential causes for engine starting, running, and electrical systems.
ABS System Operation:
Explanation of ABS functionality, indicator lights, and basic considerations for riding with ABS.
Depth Of Coverage:
Comprehensive Owner-Level Information, suitable for knowledgeable owners and routine maintenance. Does not replace a full factory service manual for in-depth repairs.
File Format Details:
PDF, allows for zoom in/out, searchable text (if converted accurately from original).
Print Quality:
Factory Quality PDF, designed for clarity and readability.
Binding Type:
Digital PDF (Not applicable for physical binding)
Paper Type:
Digital PDF (Not applicable for physical paper type)
Engine Type:
Desmodromic L-Twin (90 degree V-twin)
Engine Displacement:
996 cc (998 cc for ST4s)
Bore X Stroke:
98 x 66 mm
Valvetrain:
4 valves per cylinder, Desmodromic actuation
Cooling System:
Liquid-cooled
Horsepower Rated:
Approx. 117 hp @ 9000 rpm (for ST4s)
Torque Rated:
Approx. 71 lb-ft @ 7000 rpm (for ST4s)
Fuel Delivery:
Electronic Fuel Injection (EFI) with Weber-Marelli system
Fuel Type:
Unleaded gasoline, minimum 95 octane (RON)
Ignition Type:
Digital electronic ignition
ABS System:
Standard Dual-channel Bosch ABS
Braking Performance:
Powerful dual 320mm discs with 4-piston calipers (front), single 245mm disc with 2-piston caliper (rear).
Suspension Stability:
Adjustable suspension for varied riding conditions and loads.
Lighting:
Halogen headlights, integrated turn signals, LED tail light.
Dashboard Features:
Digital speedometer, analog tachometer, LCD multi-function display, odometer, trip meters, coolant temperature, clock, ABS indicator, fault lights.
ABS Integration:
Bosch dual-channel ABS system significantly enhances braking safety, particularly in adverse conditions.
No Modern Connectivity:
No integrated Bluetooth or smartphone connectivity in this model's era.
Oil Change Interval:
Every 6,000 miles or 12 months, whichever comes first.
Desmo Service Interval:
Every 12,000 miles or 24 months (critical valve clearance check and adjustment).
Spark Plug Replacement:
Typically every 12,000 - 15,000 miles.
Engine Oil Specification:
Fully synthetic SAE 15W-50 or 20W-50 motorcycle oil meeting API SG or higher, and JASO MA specifications.
Brake Fluid Specification:
DOT 4 or DOT 5.1
Coolant Specification:
Mixture of distilled water and ethylene glycol based antifreeze (50/50 ratio) with corrosion inhibitors.
Clutch Fluid Specification:
DOT 4 or DOT 5.1 (shared with brake system, depending on configuration)
Common Wear Items:
Clutch plates, stator (voltage regulator), battery, rear shock absorber seals, cam belts (require periodic replacement).
Common Electrical Gremlins:
Intermittent electrical connections, charging system issues (stator/regulator), warning lights (especially ABS).
Desmo Service Importance:
Crucial for engine longevity and performance; often outsourced to Ducati specialists due to complexity.
Chain Maintenance:
Regular cleaning, lubrication, and tension adjustment are vital for drivetrain life and safety.
Manufacturer Origin:
Italy
Brand Specialty:
Performance motorcycles, V-twin engines, Desmodromic valve system, racing heritage.
Technological Advancements Over St4:
Larger 996cc engine (from 916/996 Superbike), upgraded chassis components, standard ABS.
Production Years:
2001-2004 (ST4s model)
Manufacturing Plant:
Bologna, Italy
