🏷️ Basic Information

Make:

Buell

Model:

S3 Thunderbolt

Sub Model:

S3T

Year:

1998

👋 Introduction

Positioning:

A professional technical manual providing comprehensive diagnostic, repair, and maintenance information for the Buell S3 Thunderbolt S3T 1998, mirroring the content used by local service/repair shops.

Features:

Manufacturer-written content, hundreds of pages of diagrams, detailed information, step-by-step repair procedures, critical specifications, illustrations/photos, troubleshooting guidance, electrical system diagnostics with wiring diagrams.

📋 Manual Details

Coverage:

All Models/Engines/Trim/Transmissions Types

Pages:

Hundreds

Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Systems:

General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix

Procedures:

Diagnostic, Repair, Maintenance, Troubleshooting, Disassembly, Assembly, Cleaning, Reinstalling, Wiring Diagrams, Bulletins

Depth:

Professional Technicians Level, Detailed Sub-steps, Critical Information (Notes, Cautions, Warnings)

📊 Manual Specifications

Compatibility:

All Versions of Windows & Mac

Printability:

Full Printable

Zoom:

YES (Zoom IN/OUT)

Delivery Method:

Instant Download

Software Requirements:

Adobe PDF Reader & WinZip

⚙️ Engine Specifications

Engine Type:

Air-cooled, 45-degree V-twin, Pushrod Actuated Valves

Displacement:

1200 cc (approx. 73.2 cubic inches)

Bore X Stroke:

3.49 in x 4.12 in (88.7 mm x 104.6 mm)

Compression Ratio:

9.2:1

Horsepower:

Approx. 86 hp @ 6000 rpm

Torque:

Approx. 77 ft-lbs @ 5000 rpm

Carburetion:

Mikuni BST40 (flat-slide, CV)

Fuel Type:

Unleaded Gasoline, Minimum Octane Rating 87

🔧 Transmission

Type:

5-speed constant mesh

Clutch Type:

Wet, multi-plate

Final Drive:

Belt Drive (Enclosed)

📐 Dimensions

Length:

Approx. 85.8 inches (2180 mm)

Width:

Approx. 31.5 inches (800 mm)

Height:

Approx. 47.2 inches (1200 mm)

Dry Weight:

Approx. 445 lbs (202 kg)

Wet Weight:

Approx. 475 lbs (215 kg)

🛡️ Safety Features

Braking System:

Dual Disc Front, Single Disc Rear

Brake Calipers:

Possibly 6-piston front, 2-piston rear (typical for Buell of this era)

Frame Construction:

Buell's patented frame-mounted engine and swingarm design for improved rigidity and reduced unsprung weight.

💡 Technology Features

Audio System:

S3T model typically featured an integrated fairing with optional stereo system (radio/cassette).

ABS:

Not typically equipped with ABS on 1998 models.

Instrumentation:

Analog speedometer, tachometer, fuel gauge, and indicator lights. Limited electronic features typical of the era.

🔧 Maintenance

Oil Change:

Every 2,500 miles or annually, whichever comes first (typical for this era)

Spark Plug Replacement:

Every 7,500 - 10,000 miles (check manual for specifics)

Belt Tension Check:

Every 5,000 miles

Engine Oil Type:

SAE 20W-50 Motorcycle Oil (meeting Harley-Davidson specifications, refer to manual for exact spec)

Engine Oil Capacity:

Approx. 3 quarts (2.8 liters) with filter change

Primary Chain Case Oil:

Harley-Davidson primary lubricant or equivalent SAE 90W gear oil

Transmission Oil:

Harley-Davidson transmission lubricant or equivalent SAE 90W gear oil

Brake Fluid:

DOT 4

Common Problems:

Potential for carburetor issues (Mikuni BST40), electrical gremlins, belt drive adjustment sensitivity, oil leaks from engine seals. The manual will provide detailed diagnostics for these.

Maintenance Tips:

Regular cleaning of the air filter, checking and adjusting belt tension, ensuring proper electrical connections, and using high-quality fluids are crucial for longevity.

📚 Vehicle History

Founder:

Erik Buell

Philosophy:

Sportbike performance derived from mass-produced V-twin engines, characterized by unique chassis design and handling.

Predecessor:

Buell S2 Thunderbolt

Key Development:

Further refinement of the Harley-Davidson Sportster engine platform, introduction of S3T touring variant.

Manufacturing Location:

East Troy, Wisconsin, USA

🏆 Awards & Recognition

Brand Recognition:

Buell motorcycles are recognized for their performance-oriented design and handling characteristics, particularly for their ability to corner.