The BMW K1100LT and K1100RS, produced in 1999, represent a significant evolution in engineering, offering a blend of touring comfort and sport-touring performance. Powered by a liquid-cooled, inline 4-cylinder, four-stroke engine with a displacement of approximately 1093 cc, these motorcycles deliver robust performance, generating around 100-101 horsepower and 100 Nm of torque. Known for their smooth operation, shaft drive, and advanced fuel injection system, the K1100 series embodies a commitment to quality and rider experience. The K1100LT was celebrated for its exceptional touring amenities, while the K1100RS provided a more dynamic riding profile, both recognized for their solid build and engineering prowess.
This comprehensive service repair manual is designed to provide detailed guidance for the maintenance, diagnostics, and repair of the BMW K1100LT and K1100RS models. It covers an extensive range of systems, including the engine, gearbox, clutch, fuel and lubrication systems, cooling, electrical components, chassis, suspension, and brakes. The manual offers step-by-step instructions, diagnostic flowcharts, troubleshooting guides, and essential technical specifications, making it an indispensable resource for owners, independent repair shops, and technicians. With printable pages and searchable text, this manual aims to ensure accurate repairs and optimal performance for these esteemed motorcycles.
Motorcycle Type:
Touring / Sport-Touring
Target Audience:
BMW K1100LT and K1100RS owners, independent motorcycle repair shops, DIY enthusiasts
Value Proposition:
Provides professional-grade repair information, equivalent to what authorized dealerships and independent shops use, enabling cost savings for owners and ensuring accurate repairs.
Features:
Step-by-step instructions, illustrations, diagrams, specifications, troubleshooting guidance, printable pages, instant download
Primary Coverage:
Repair, Maintenance, Diagnostics, Troubleshooting, Rebuild
Specific Coverage:
Engine, Gearbox, Clutch, Fuel System, Lubrication, Cooling, Electrical System, Chassis, Suspension, Brakes, Bodywork, Frame, Wheels, Tires, Ignition, Starter, Lights, Meters, Switches, Wiring Diagrams
Estimated Page Count:
Likely 300-500+ pages (typical for comprehensive motorcycle service manuals of this era)
Type:
Service Repair Manual
Engine Systems:
Engine Removal/Installation, Fuel System (including Fuel Injection), Lubrication System, Cooling System, Combustion System, Cylinder Head/Valves, Crankcase, Piston, Cylinder, Crankshaft, Balancer
Drivetrain Systems:
Gearbox, Clutch, Transmission System
Chassis Systems:
Front Wheel, Steering System, Rear Wheel System, Fenders, Exhaust Pipe, Chassis, Suspension, Braking System
Electrical Systems:
Electrical System, Alternator/Starter Clutch, Battery/Charging System, Ignition System, Electric Starter, Lights/Meters/Switches, Wiring Diagrams
Bodywork And Fixtures:
Body & Fixtures, Frame/Body Panels/Exhaust System
Maintenance And Adjustment:
Periodic Checks & Adjustments, Routine Maintenance, Fluid Changes, Filter Replacements
Repair And Rebuild:
Component Disassembly, Reassembly, Overhaul Procedures for Engine, Transmission, Suspension, Brakes, and Electrical Components
Diagnostics And Troubleshooting:
Troubleshooting Guides, Diagnostic Flowcharts, Common Problem Identification
Depth:
Comprehensive (covering basic maintenance to full rebuilds, including diagnostic procedures)
Printability:
All pages are printable
Binding:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Text Search:
Likely searchable text within the PDF for efficient information retrieval
Engine Type:
Inline 4-Cylinder, Four-Stroke
Displacement:
1093 cc (approximate)
Bore X Stroke:
75.5 mm x 62.6 mm (typical for K1100 series)
Compression Ratio:
10.0:1 (typical for K1100 series)
Horsepower:
Approx. 100-101 hp @ 7500 rpm (for K1100LT/RS)
Torque:
Approx. 100 Nm (74 lb-ft) @ 5500 rpm (for K1100LT/RS)
Fuel Delivery:
Bosch Motronic Fuel Injection (EFI)
Fuel Type:
Unleaded Premium Gasoline
Oil Type:
Refer to manual for specific API/JASO specifications (e.g., SAE 20W-50, API SG or higher)
Cooling Method:
Liquid Cooled
Coolant Type:
Ethylene glycol-based coolant mixture (typically 50/50 water/antifreeze)
Oil Type:
Refer to manual for specific specifications (e.g., SAE 75W-90 GL-5 gear oil)
Wheelbase:
Approx. 1493 mm (58.8 in) for K1100LT; similar for K1100RS
Dry Weight:
Approx. 239 kg (527 lbs) for K1100LT; Approx. 224 kg (494 lbs) for K1100RS
Wet Weight:
Approx. 261 kg (575 lbs) for K1100LT; Approx. 247 kg (545 lbs) for K1100RS
Braking System Front:
Dual Disc Brakes (typically 305mm discs with 4-piston calipers)
Braking System Rear:
Single Disc Brake (typically 282mm disc with 2-piston caliper)
ABS:
Optional ABS (BMW Integral ABS) available on some models
Lighting:
Halogen Headlight, Multiple Taillight and Indicator Bulbs
Instrumentation:
Analog Tachometer, Speedometer, Fuel Gauge, Gear Indicator, Odometer, Trip Meter, Warning Lights
ABS Availability:
Optional Integral ABS system
Diagnostics:
Diagnostic connector for accessing engine management system data (proprietary BMW connector, specific diagnostic tools or adapters required for advanced diagnostics).
Oil Change Interval:
Typically every 5,000-10,000 km or annually (refer to manual for precise BMW recommendations)
Filter Replacement Interval:
Oil filter usually replaced with each oil change. Air filter and fuel filter replacement intervals vary.
Valve Adjustment Interval:
Typically at 10,000-20,000 km or as specified in the manual for checking and adjustment.
Engine Oil Capacity:
Approx. 4.0 liters (4.2 US quarts) with filter change (verify in manual)
Gearbox Oil Capacity:
Approx. 0.75 liters (0.8 US quarts) (verify in manual)
Brake Fluid Type:
DOT 4 (verify in manual for specific BMW recommendation)
Common Wear Items:
Clutch wear, brake pad wear, fork seal leaks, alternator drive belt wear, fuel pump issues, electrical connector corrosion
Potential Failures:
Overheating due to cooling system issues, starter motor issues, ABS system faults (if equipped)
Heritage:
BMW Motorrad has a long history of producing innovative and durable motorcycles, particularly known for their boxer-twin engines and shaft drive systems, though the K-series introduced the inline-four.
K Series Development:
The K1100 series, introduced in the late 1980s/early 1990s, represented BMW's move to more powerful inline-four engines, building on the K1 and K100 series, and offering improved performance and chassis dynamics for touring and sport-touring.
Production Period:
The K1100LT and K1100RS models were primarily produced from 1992 to 1999, with the 1999 model representing the final production year for this generation before the introduction of the K1200 series.
Industry Standing:
The K1100LT was highly regarded for its comfort and touring capabilities, while the K1100RS offered a sportier variant. Both models were praised for their smooth, powerful engines and solid build quality, characteristic of BMW motorcycles.
