🏷️ Basic Information

Make:

BMW

Model:

K1100

Model Variant:

K1100LT (Touring), K1100RS (Sport Touring)

Production Years Covered By Manual:

1993, 1994, 1995, 1996, 1997, 1998, 1999

Chassis Code:

K1100LT, K1100RS

👋 Introduction

Segment:

Luxury Touring and Sport Touring Motorcycle

Target Audience:

Owners seeking in-depth knowledge for maintenance and repair, independent repair shops, technical schools

Competitors:

Honda ST1100, Yamaha FJ1200, Kawasaki GTR1000

Powertrain Layout:

Longitudinal inline-four engine, shaft drive

Design Philosophy:

BMW's signature build quality, touring comfort, and innovative engineering

📋 Manual Details

Primary Coverage:

Complete mechanical and electrical repair, maintenance, and troubleshooting

Secondary Coverage:

Specifications, diagnostics, component removal/installation, adjustments

Estimated Page Count:

Approximately 800-1000 pages (typical for comprehensive WSMs of this era)

Type:

Workshop Service Manual (WSM)

Language:

English

Format:

Digital (likely PDF, but can be printed)

📖 Manual Coverage

Powertrain:

Engine, fuel system, ignition, exhaust, clutch, transmission, final drive

Chassis:

Frame, suspension (front and rear), steering, brakes (front and rear), wheels, tires

Electrical:

Wiring diagrams, battery, charging system, ignition system, lighting, instruments, fuel injection control, ABS (if equipped), body electronics

Bodywork:

Fairings, body panels, seat, fuel tank, maintenance access points

Maintenance:

Oil changes, filter replacements, spark plug service, valve clearance adjustment, brake fluid flush, coolant service, drive shaft lubrication

Repair:

Engine overhaul, transmission rebuild, clutch replacement, suspension component repair, brake caliper service, electrical component diagnosis and replacement

Troubleshooting:

Systematic diagnostic procedures for common and uncommon issues across all major systems

Adjustments:

Throttle cable, clutch cable, idle speed, ignition timing (if applicable), suspension pre-load

Depth:

Comprehensive from basic user maintenance to full engine and transmission rebuilds, including diagnostic fault codes and electrical tracing

📊 Manual Specifications

Format:

PDF (Searchable Text, Bookmarked Chapters)

Quality:

High-resolution scans suitable for printing, clear diagrams and text

Binding:

N/A (Digital Format)

Type:

N/A (Digital Format)

⚙️ Engine Specifications

Type:

16-valve DOHC Inline-Four, longitudinally mounted

Displacement:

1093 cc

Bore X Stroke:

77 mm x 58 mm

Compression Ratio:

10.0:1

Horsepower:

100 hp (74.5 kW) @ 7500 rpm

Torque:

100 Nm (73.8 lb-ft) @ 6000 rpm

Induction:

Bosch Motronic electronic fuel injection (EFI)

Fuel Type:

Unleaded gasoline (91+ octane)

System:

Liquid-cooled

🔧 Transmission

Type:

5-speed manual

Drive Type:

Shaft drive

Clutch Type:

Hydraulically operated, multi-plate wet clutch

📐 Dimensions

Length:

K1100LT: approx. 2320 mm (91.3 in); K1100RS: approx. 2200 mm (86.6 in)

Width:

K1100LT: approx. 940 mm (37 in); K1100RS: approx. 810 mm (31.9 in)

Height:

K1100LT: approx. 1420 mm (55.9 in); K1100RS: approx. 1270 mm (50 in)

Wheelbase:

approx. 1565 mm (61.6 in)

Dry Weight:

K1100LT: approx. 277 kg (611 lbs); K1100RS: approx. 245 kg (540 lbs)

Gross Vehicle Weight Rating:

Approx. 450 kg (992 lbs)

Tank Capacity:

21 liters (5.5 US gal), including reserve

🛡️ Safety Features

Crash Test Data:

Motorcycle safety data is typically assessed through independent track testing and component robustness, not standardized crash tests like cars. The K1100 is known for its stable chassis and robust build.

ABS:

Optional BMW Motorrad ABS (Anti-lock Braking System) available on many models

Brakes Front:

Dual 330 mm discs with 4-piston calipers

Brakes Rear:

Single 280 mm disc with 2-piston caliper

Chassis Design:

Integral frame structure providing rigidity and stability

Lighting:

Halogen headlights, integrated turn signals

💡 Technology Features

Features:

Basic analogue and digital instrument cluster, odometer, trip meter, fuel gauge, engine temperature gauge, warning lights. Some LT models may have optional radio/cassette players.

ABS:

Availability of BMW Motorrad ABS (as mentioned in safety section).

Features:

Limited by modern standards; focus is on mechanical and electrical systems.

🔧 Maintenance

Oil Change:

Every 10,000 km (6,000 miles) or annually

Oil Filter Replacement:

With every oil change

Spark Plug Replacement:

Every 20,000 km (12,000 miles)

Valve Clearance Check:

Every 20,000 km (12,000 miles)

Brake Fluid Flush:

Every 2 years

Coolant Replacement:

Every 3-4 years or as specified

Engine Oil:

SAE 20W-40 or 20W-50 API SG or higher (refer to manual for exact BMW spec)

Engine Oil Capacity:

3.5 liters (3.7 US qt) with filter change

Coolant:

BMW approved coolant (ethylene glycol based) with corrosion inhibitors, typically a 50/50 mix with distilled water

Brake Fluid:

DOT 4

Transmission Oil:

SAE 75W-90 GL-5

Final Drive Oil:

SAE 80W-90 GL-5

Electrical Connectors:

Corrosion on connectors, particularly in humid environments, affecting various systems.

Fuel Pump:

Occasional failure of the in-tank fuel pump.

ABS Modulator:

Potential issues with the ABS modulator unit if equipped, often requiring specialized diagnosis and repair.

Clutch Slave Cylinder:

Leaking clutch slave cylinder seals.

Worn Wheel Bearings:

Premature wear on wheel bearings, especially if subjected to harsh conditions or improper maintenance.

📚 Vehicle History

Manufacturer:

Bayerische Motoren Werke AG (BMW)

Motorcycle Division Legacy:

BMW has a long and distinguished history in motorcycle manufacturing, dating back to the 1920s, known for innovation and quality.

K Series Introduction:

The K-series, launched in 1983 with the K100, represented BMW's move to liquid-cooled, fuel-injected engines and a monocoque frame.

K1100 Development:

The K1100 was an evolution of the K100, featuring an increased displacement to 1093cc for enhanced performance and torque, particularly for the touring-oriented LT model.

Manufacturing Location:

Berlin, Germany (BMW Motorrad plant)

Overall Production:

1989 - 1999 (K1100RS: 1989-1992, K1100LT: 1990-1999, with the manual covering the later iteration)

🏆 Awards & Recognition

Industry Standing:

The K1100 series is recognized for its refinement, comfort, and durability, solidifying BMW's reputation in the touring segment during its production era.

Reliability:

Generally considered reliable with proper maintenance. The robust engineering and quality components contribute to longevity.