🏷️ Basic Information

Make:

BMW

Model:

K75 RT, K1100 LT, K1100 RS

Model Variant 1:

K75 RT

Model Variant 2:

K1100 LT

Model Variant 3:

K1100 RS

Production Years Covered:

1992-1999

Engine Code K75:

M750E

Engine Code K1100:

M710EC

👋 Introduction

Target Audience:

BMW K-Series motorcycle owners, independent repair shops, enthusiasts

Value Proposition:

Comprehensive and accurate repair information, preventing costly mistakes from incomplete manuals

Key Differentiator:

Completeness and factory-level detail, superior to generic repair guides

Feature 1:

Detailed diagrams and illustrations

Feature 2:

Step-by-step repair procedures

Feature 3:

Troubleshooting guides and symptom analysis

Feature 4:

Wiring schematics for accurate electrical diagnosis

📋 Manual Details

Primary Coverage:

Service and Repair

Secondary Coverage:

Maintenance, Troubleshooting, Diagnostics, Overhaul

Estimated Pages:

Extensive (factory workshop manual equivalent, typically 500+ pages)

Type:

Complete Service and Repair Manual

Comparison:

Factory Workshop Manual (FSM), CDROM Manual

Language:

English

Format:

Digital (likely PDF, as per common digital manual offerings)

📖 Manual Coverage

Engine:

Complete engine overhaul, tuning, lubrication, cooling, fuel injection, ignition system

Transmission:

Gearbox, clutch, drive shaft, final drive maintenance and repair

Electrical:

Wiring diagrams, lighting, ignition, starter, alternator, battery, instrumentation, ECU diagnostics

Chassis:

Frame, suspension (front and rear), steering system, wheel bearings

Brakes:

Brake system overhaul (ABS equipped models included), fluid changes, pad/disc replacement

Fuel System:

Fuel pump, injectors, fuel filter, fuel tank servicing

Bodywork:

Fairings, seat, storage compartments, fairing repair and removal

Exhaust System:

Muffler, exhaust pipes, catalytic converter (if applicable)

Cooling System:

Radiator, coolant, fan, water pump

Routine Maintenance:

Oil changes, filter replacements, spark plug service, valve clearance checks

Troubleshooting:

Diagnostic flowcharts for common issues, error codes

Engine Rebuild:

Piston, ring, cylinder, crankshaft, camshaft installation and specifications

Component Replacement:

Alternator, starter motor, fuel pump, brake calipers, suspension components

Calibration:

Throttle body synchronization, idle speed adjustment

Safety Systems:

ABS bleeding procedures and diagnostics

Depth:

Comprehensive, from basic checks to complete engine and gearbox rebuilds

Diagnostic Level:

Advanced, including electrical system diagnostics and component testing

Torque Specifications:

Detailed torque values for all critical fasteners

Special Tools:

Identification and usage of BMW specific tools

📊 Manual Specifications

Digital Format:

PDF (Portable Document Format)

Searchability:

Likely text-searchable for quick information retrieval

Quality:

High-resolution, suitable for printing individual pages or sections

Binding:

N/A (Digital format)

Paper:

N/A (Digital format)

⚙️ Engine Specifications

Type K75:

750cc, 4-stroke, inline-three cylinder, liquid-cooled

Bore X Stroke K75:

67 mm x 70 mm

Compression Ratio K75:

9.8:1

Valve Train K75:

DOHC, 4 valves per cylinder

Type K1100:

1093cc, 4-stroke, inline-four cylinder, liquid-cooled

Bore X Stroke K1100:

70.5 mm x 70.5 mm

Compression Ratio K1100:

10.5:1

Valve Train K1100:

DOHC, 4 valves per cylinder

Horsepower K75:

Approx. 75 hp @ 8500 rpm

Torque K75:

Approx. 70 Nm @ 6500 rpm

Horsepower K1100:

Approx. 100 hp @ 8000 rpm (K1100 LT/RS, non-ABS may vary slightly)

Torque K1100:

Approx. 100 Nm @ 6000 rpm

Fuel Delivery:

Bosch Motronic fuel injection

Fuel Type:

Unleaded gasoline, minimum 95 RON

🔧 Transmission

Type:

5-speed manual gearbox

ABS Integration:

Available on select K1100 models

Drive Type:

Shaft drive

Clutch:

Dry single-plate (K75) / Wet multi-plate (K1100)

📐 Dimensions

Length:

Approx. 2230 mm

Width:

Approx. 920 mm (incl. mirrors)

Height:

Approx. 1420 mm (incl. windscreen)

Length:

Approx. 2315 mm

Width:

Approx. 960 mm (incl. mirrors)

Height:

Approx. 1470 mm (incl. windscreen)

Dry Weight K75 Rt:

Approx. 230 kg

Wet Weight K75 Rt:

Approx. 245 kg

Dry Weight K1100 Lt:

Approx. 278 kg

Wet Weight K1100 Lt:

Approx. 295 kg

🛡️ Safety Features

Safety Focus:

Emphasis on rider safety through stable chassis and powerful braking systems

ABS:

Optional Anti-lock Braking System (ABS II) on K1100 models

Lighting:

Powerful halogen headlights, integrated indicators

Chassis Design:

Sturdy steel frame, integral fairings for aerodynamic protection

Braking Performance:

Dual front disc brakes, single rear disc brake (caliper type and size vary by model and year)

💡 Technology Features

Infotainment System:

N/A (These models predate integrated infotainment systems as we know them today; focus is on function and reliability)

Driver Assistance Systems:

Optional ABS (Anti-lock Braking System)

Connectivity Features:

N/A (No built-in connectivity features)

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 km or annually, whichever comes first (refer to manual for exact specification)

Valve Clearance Check:

Typically every 20,000 km or 24,000 km (refer to manual for exact specification)

Spark Plug Replacement:

Refer to manual; typically around 20,000-40,000 km depending on plug type

Engine Oil Type K75:

SAE 20W-50 or SAE 15W-50 API SG or higher (BMW approved)

Engine Oil Type K1100:

SAE 20W-50 or SAE 15W-50 API SG or higher (BMW approved)

Engine Oil Capacity K75:

Approx. 3.0 liters (with filter)

Engine Oil Capacity K1100:

Approx. 4.0 liters (with filter)

Brake Fluid:

DOT 4 brake fluid

Coolant:

BMW recommended coolant (ethylene glycol based) with corrosion inhibitors

Final Drive Oil:

SAE 80W-90 API GL-5 gear oil

Issue 1:

Cracked starter motor housings (common on early K-series, improved in later models)

Issue 2:

Water pump seal leaks (periodic maintenance item)

Issue 3:

Fuel line degradation (age-related, requires inspection and replacement)

Issue 4:

ABS sensor failures or pump issues (on equipped models)

Issue 5:

Stiffening of rubber components (hoses, mounts) due to age

📚 Vehicle History

Bmw Motorrad Legacy:

BMW Motorrad's long history of engineering excellence, innovation, and rider comfort

K Series Introduction:

The 'K' series, introduced in the early 1980s, represented BMW's foray into inline-four cylinder motorcycles, later expanding to the three-cylinder K75.

K75 Positioning:

The K75 series (including RT touring variant) was positioned as a smoother, more refined alternative to traditional boxer-twins, emphasizing comfort and efficiency.

K1100 Evolution:

The K1100 LT (Lux Touring) and RS (Rennsport) were developed from the K100, featuring an enlarged 1100cc engine and improved aerodynamics, catering to sport-touring and touring segments.

Manufacturing Plant:

Berlin-Spandau, Germany

🏆 Awards & Recognition

Design Awards:

BMW K-series motorcycles were generally praised for their innovative transverse engine layout and advanced technology for their era.

Reliability Reputation:

Known for robust engineering and good long-term reliability when properly maintained

Manufacturing Standards:

Adherence to stringent BMW manufacturing and quality standards