Ducati ST4 Sport Touring 4 Service Repair Manual

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🏷️ Basic Information Identification Make: Ducati Model: ST4 Sport Touring 4 Model Code: ST4 Applicable Years: 2000 onwards 👋 Introduction Market Position Bike Segment: Sport Touring Target Audience: Riders seeking...

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Type: Motorcycle

Vendor:

Sku: 252769

Tags: Ducati Motorcycle Motorcycles SportTouring / ST Models ST4 Sport Touring 4

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Description

🏷️ Basic Information

Identification

Make:

Ducati

Model:

ST4 Sport Touring 4

Model Code:

Applicable Years:

2000 onwards

👋 Introduction

Market Position

Bike Segment:

Sport Touring

Target Audience:

Riders seeking performance and comfort for long-distance touring, with a premium Italian flair.

Competitive Analysis

Key Competitors:

Honda VFR, BMW R 1100 S, Yamaha TDM, Kawasaki GTR series of the era.

Key Features

Engine Layout:

L-Twin (90-degree V-twin)

Design Philosophy:

Combines Ducati's sporty heritage with touring practicality, featuring a more relaxed riding position and luggage capabilities compared to pure sportbikes.

Manual Value Proposition:

Provides essential factory-level technical data, crucial for maintaining the performance and longevity of a sophisticated Italian motorcycle.

📋 Manual Details

Coverage Areas

Coverage Scope:

Comprehensive service and repair

System Coverage:

All systems including engine, transmission, chassis, electrical, fuel, cooling, exhaust, suspension, brakes, bodywork, and diagnostics.

Page Count

Estimated Page Count:

Estimated 400-600 pages (typical for a comprehensive factory service manual of this era)

Manual Type

Manual Type:

Factory Service Repair Manual

Language

Language:

English, Italian

Format

File Format:

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Disassembly, assembly, inspection, repair of cylinder heads, cylinders, pistons, crankshaft, connecting rods, valve train, oil pump, lubrication system.

Engine Management And Fuel:

Fuel injection system (Bosch Motronic), throttle body, injectors, fuel pump, fuel pressure regulator, sensors (MAP, TPS, IAT, ECT, Lambda), ECU diagnostics and troubleshooting.

Ignition System:

Ignition coils, spark plugs, electronic ignition control, troubleshooting ignition faults.

Cooling System:

Radiator, cooling fan, water pump, thermostat, coolant hoses, system flushing and refilling, troubleshooting overheating.

Exhaust System:

Exhaust manifold, catalytic converter (if equipped), mufflers, gasket replacement, leak detection.

Transmission And Drivetrain:

Clutch operation, gearbox disassembly and assembly, gear selection mechanism, chain and sprocket maintenance, drive chain adjustment and lubrication, rear sprocket hub maintenance.

Chassis And Frame:

Frame inspection, steering head bearing maintenance, swingarm pivot bearing maintenance, wheel bearing inspection and replacement.

Suspension Front:

Front fork disassembly, assembly, oil change, seal replacement, spring preload adjustment, damping adjustments (if applicable).

Suspension Rear:

Rear shock absorber inspection and adjustment, linkage system maintenance, swingarm removal and installation, rear shock linkage bearing service.

Brakes Front:

Brake caliper disassembly, piston seals, brake pad replacement, brake fluid flush and bleed, master cylinder overhaul, rotor inspection and replacement.

Brakes Rear:

Rear brake caliper service, brake pad replacement, brake fluid flush and bleed, rear master cylinder service, rear rotor inspection.

Wheels And Tires:

Tire pressure checks, tire wear inspection, wheel balancing, tire mounting and dismounting, valve stem replacement.

Electrical System:

Battery maintenance, charging system (alternator, regulator/rectifier), starter motor, lighting system, horn, switches, relays, fuses, wiring harness inspection and repair.

Instrumentation And Controls:

Dashboard indicators, speedometer, tachometer, fuel gauge, warning lights, handlebar controls, throttle and clutch lever adjustment.

Bodywork And Fairings:

Fairing removal and installation, seat removal, fuel tank removal and installation, minor bodywork repair and painting advice.

Procedures Included

Preventive Maintenance:

Scheduled maintenance, oil and filter changes, coolant checks, chain lubrication and adjustment, brake fluid replacement, spark plug replacement, air filter replacement.

Disassembly And Reassembly:

Step-by-step instructions with detailed diagrams for all major components and systems.

Troubleshooting Guides:

Systematic diagnostic procedures for identifying and resolving common and uncommon faults.

Repair And Rebuild:

Detailed instructions for repairing or completely rebuilding engine, transmission, and suspension components.

Wiring Diagrams:

Comprehensive, high-quality wiring schematics for electrical systems.

Torque Specifications:

Precise torque values for all critical fasteners.

Technical Depth

Depth Of Information:

Factory-level technical data for professional mechanics and advanced DIY enthusiasts.

Diagnostic Capabilities:

Includes information on engine control unit (ECU) fault codes and diagnostic procedures.

📊 Manual Specifications

File Format

File Format:

Print Quality

Print Quality:

High Quality, Fully Printable

Binding Type

Binding Type:

Digital (PDF format), printable pages allow for user-binding.

Paper Type

Paper Type:

N/A (Digital File)

Searchability

Searchable Text:

Likely contains searchable text for efficient information retrieval within the PDF.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Four-stroke, liquid-cooled, 4-valve per cylinder, Desmodromic, L-Twin (90° V-twin)

Displacement:

916 cc (This is the base ST4; later ST4S used 996cc engine. Manual covers ST4, so 916cc is primary focus.)

Bore X Stroke:

94 mm x 66 mm (for 916cc engine)

Compression Ratio:

11.3:1 (Typical for 916cc engine)

Valve Actuation:

Desmodromic

Fueling:

Electronic Fuel Injection (EFI), Bosch Motronic

Performance

Horsepower:

Approximately 107 hp @ 8700 rpm (for 916cc engine)

Torque:

Approximately 68 lb-ft @ 7000 rpm (for 916cc engine)

Fuel System

Throttle Body Size:

50 mm (Typical for this era EFI system)

Fuel Type:

Unleaded gasoline, minimum 95 RON (91 AKI)

Lubrication

Oil Capacity:

Approximately 3.7 Liters (with filter change)

Recommended Oil Type:

Fully synthetic SAE 10W-40 or 15W-50 motorcycle oil meeting API SG/JASO MA specifications.

🔧 Transmission

Standard

Transmission Type:

6-speed sequential manual

Clutch Type:

Wet multi-plate, hydraulic actuation

Features

Final Drive:

Chain drive

Transmission Oil Type:

API GL-4 or GL-5 gear oil (specific viscosity to be confirmed in manual, e.g., 75W-90)

📐 Dimensions

Exterior

Wheelbase:

Approx. 1430 mm / 56.3 inches

Seat Height:

Approx. 810 mm / 31.9 inches

Weights

Dry Weight:

Approx. 198 kg / 436.5 lbs

Fuel Tank Capacity:

21 Liters (5.5 US gallons)

🛡️ Safety Features

Ratings

Safety Features Focus:

Manual focuses on mechanical and electrical safety, system functionality rather than crash ratings.

Active Features

Braking System:

Dual 320 mm discs with 4-piston calipers (front), Single 245 mm disc with 2-piston caliper (rear). ABS was optional on some variants.

Passive Features

Lighting:

Halogen headlight, LED taillight, turn signals.

💡 Technology Features

Infotainment

Instrumentation:

Analog tachometer, digital speedometer, odometer, trip meter, coolant temperature gauge, clock, warning lights.

Driver Assistance

ABS Availability:

Optional on certain models/years.

Connectivity

Diagnostic Interface:

On-board diagnostics (OBD) via a specific Ducati diagnostic connector, details and procedures covered in the manual.

🔧 Maintenance

Service Intervals

Oil And Filter Change:

Every 7,500 km (4,600 miles) or 12 months.

Desmo Service Interval:

Every 12,000 km (7,500 miles) for valve clearance adjustment (Desmodromic service).

Chain Maintenance:

Lubrication and adjustment every 1,000 km (600 miles) and inspection for wear.

Fluid Specifications

Brake Fluid:

DOT 4 (Recommended replacement every 2 years)

Coolant Type:

Ethylene glycol based coolant with corrosion inhibitors, typically 50% concentration with distilled water.

Fork Oil Type:

Specific viscosity grade (e.g., SAE 7.5W or 10W) and quantity, detailed in manual.

Known Issues

Common Wear Items:

Desmodromic valve adjustment intervals, clutch slave cylinder seals, regulator/rectifier reliability, fuel line connections.

Electrical Gremlins:

Potential for minor electrical issues due to wiring harness complexity; manual is crucial for diagnosis.

📚 Vehicle History

Brand Heritage

Brand Origin:

Italy, founded in Bologna in 1926, renowned for its L-Twin engines and racing pedigree.

Model Evolution

Predecessors And Successors:

Evolved from Ducati's earlier sports motorcycles, it paved the way for later sport-touring models like the ST3 and ST4S.

Production

Production Period:

The ST4 was produced from 1999 to 2004, with the ST4S following.

🏆 Awards & Recognition

Recognitions

Design Awards:

While specific awards for the ST4 might not be as publicized as its superbike brethren, Ducati's overall design language from this era was highly regarded.

Ratings

Reviews And Reputation:

Generally well-received for its blend of performance and touring comfort, often praised for its handling and engine character.