Segment:
Premium Sport Touring Motorcycle
Target Audience:
BMW enthusiasts, touring riders, performance-oriented riders seeking comfort and capability
Competitors Era:
Honda Gold Wing, Yamaha Venture, Kawasaki Concours
Model Variants:
LT (Luxus Tourer) for comfort and touring, RS (Rennsport) for sportier performance
Manual Value:
Essential resource for DIY maintenance, repair, and ensuring longevity of a classic BMW motorcycle
Models Covered:
BMW K1100LT, BMW K1100RS
Production Years Covered:
Primarily 1998, with applicable information for adjacent years
Estimated Pages:
Hundreds (specific count not provided, but implies comprehensive documentation)
Type:
Factory Service Repair Manual
Engine:
Detailed diagnostics, repair, overhaul, tuning, component identification
Transmission:
Gearbox disassembly, assembly, troubleshooting, fluid maintenance
Fuel System:
Fuel injection system (Bosch Motronic), fuel pump, injectors, sensors, lines
Electrical System:
Wiring diagrams, starter, alternator, battery, ignition system, lighting, instrumentation
Brakes:
Brake system components, bleeding procedures, ABS system (if applicable), pad and disc replacement
Suspension:
Front fork (e.g., Telelever or traditional telescopic), rear shock absorber, swingarm, wheel bearings
Chassis And Frame:
Frame inspection, headstock bearings, general chassis component checks
Bodywork:
Fairings, panels, seat removal, luggage systems (for LT model)
Maintenance:
Scheduled service intervals, oil changes, filter replacements, lubrication points
Troubleshooting:
Diagnostic flowcharts, common fault identification and rectification
Repair:
Step-by-step disassembly, reassembly, and repair instructions for all major components
Diagnostics:
Detailed explanations of diagnostic trouble codes (DTCs), sensor testing, actuator testing
Specifications Data:
Torque values, clearances, fluid capacities, electrical specifications
Depth:
Comprehensive (factory level), suitable for professional technicians and experienced enthusiasts
File Type:
PDF (Portable Document Format)
Searchability:
Likely text-searchable, allowing for quick navigation to specific topics
Print Readability:
Designed for clear printing of individual pages or the entire manual
Binding Recommendation:
Spiral or comb binding recommended for workshop use for lay-flat pages
Paper Recommendation:
Durable, laminated paper is ideal for workshop environments to resist grease and moisture
Type:
Inline Four-Cylinder, Four-Stroke
Displacement:
1093 cc (1.1 Liters)
Bore X Stroke:
77 mm x 58 mm
Compression Ratio:
10.2:1
Valve Train:
DOHC (Double Overhead Camshafts), 4 valves per cylinder
Cooling System:
Liquid-Cooled
Horsepower:
Approx. 100 hp (74 kW) @ 7500 rpm
Torque:
Approx. 101 Nm (74 lb-ft) @ 6000 rpm
Induction:
Bosch Motronic Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded Premium Gasoline (95 RON recommended)
Length:
K1100LT: Approx. 2300 mm (90.6 in) / K1100RS: Approx. 2230 mm (87.8 in)
Width:
K1100LT: Approx. 900 mm (35.4 in) / K1100RS: Approx. 850 mm (33.5 in)
Height:
K1100LT: Approx. 1420 mm (55.9 in) / K1100RS: Approx. 1270 mm (50 in)
Dry Weight:
K1100LT: Approx. 279 kg (615 lbs) / K1100RS: Approx. 244 kg (538 lbs)
Wet Weight:
K1100LT: Approx. 310 kg (683 lbs) / K1100RS: Approx. 270 kg (595 lbs)
Gross Vehicle Weight Rating:
Not explicitly stated, but designed for rider + passenger + luggage
Crash Test Ratings:
Motorcycles are not subject to standardized crash test ratings like automobiles.
Braking System:
Dual disc front brakes, single disc rear brakes. Optional ABS (Anti-lock Braking System) available on many models.
Lighting:
Halogen headlight, LED taillight (common for the era), integrated turn signals.
Frame Construction:
Sturdy steel frame designed for stability and rider protection.
Fairings Windshields:
Extensive fairing and adjustable windshield on LT model for rider protection from elements.
Instrumentation:
Analog tachometer and speedometer, LCD display for odometer, trip meters, fuel gauge, clock, engine temperature, and warning lights. K1100LT often featured a sophisticated dashboard with radio/cassette player as an option.
ABS:
Optional BMW Integral ABS (Anti-lock Braking System) available on many models, providing enhanced braking stability.
Diagnostic Ports:
While not 'connectivity' in the modern sense, the manual details diagnostic procedures for the Motronic system, often requiring specific BMW diagnostic tools for advanced troubleshooting.
Oil Change Interval:
Every 10,000 km (6,000 miles) or annually, whichever comes first (refer to manual for exact schedule).
Valve Clearance Check:
Every 20,000 km (12,000 miles).
Engine Oil:
BMW Motorrad recommends SAE 20W-50 or SAE 15W-40 API SF/SG or higher motorcycle-specific oil. (Consult manual for precise specification and capacity, approx. 4.5 liters with filter).
Brake Fluid:
DOT 4 brake fluid.
Coolant:
BMW's proprietary coolant or a high-quality ethylene glycol-based antifreeze with corrosion inhibitors, mixed 50/50 with distilled water.
Transmission Oil:
SAE 90 hypoid gear oil (API GL-5) for the gearbox and final drive. (Consult manual for exact specification and capacity).
Common Wear Items:
Fuel pump, regulator, alternator brushes, starter motor, clutch plates, suspension seals, wheel bearings.
Electrical Gremlins:
Older models can develop electrical connection issues due to age; thorough inspection and dielectric grease application are beneficial.
Fuel Injector Clogging:
Can occur if fuel quality is poor or the bike sits for extended periods without fuel stabilizer.
Ignition System:
Regularly inspect spark plugs for condition and proper gap. Ensure ignition coils and wires are in good condition.
Heritage:
BMW Motorrad has a long history of producing high-quality, technologically advanced motorcycles, known for reliability and engineering prowess.
K Series Origin:
The K-series marked BMW's foray into water-cooled, multi-cylinder engines, initially with the K100, evolving into the K1100 series with increased displacement and performance.
K1100 Development:
The K1100LT and RS were developed from the K100 platform, featuring a longer-stroke crankshaft to increase displacement and improve torque and power delivery.
Production Years:
K1100LT/RS produced from 1991 to 1999.
Manufacturing Location:
Berlin, Germany
Industry Reputation:
The K-series, including the K1100, was lauded for its smooth power delivery, stability at speed, and touring comfort, particularly the LT variant.
Reliability:
Generally considered very reliable when properly maintained. BMW's engineering heritage contributes to a robust powertrain.
