BMW K100 RS RT LT 987CC Service Repair Manual 1983 ONWARD

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🏷️ Basic Information Identification Make: BMW Model: K100 RS / RT / LT Generation Model Generation Designation: K100 Series Codes Engine Code Designation: K100 (987cc) 👋 Introduction Market Position Segment:...

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Taper: Motorcycle

Distributeur:

UGS: 602542

Mots clés: 1983 BMW K Series K100 LT K100 RS K100 RT Motorcycle Motorcycles

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

K100 RS / RT / LT

Generation

Model Generation Designation:

K100 Series

Codes

Engine Code Designation:

K100 (987cc)

👋 Introduction

Market Position

Segment:

Premium Sport Touring / Touring Motorcycle

Competitive Analysis

Competitors:

Honda GL1100/1200 Gold Wing, Kawasaki Voyager, Yamaha Venture

Key Features

Design Philosophy:

Shaft drive, transverse inline-four engine, advanced aerodynamics for touring comfort

Model Variants:

RS (Rennsport - Sport), RT (Reise/Touring - Touring), LT (Luxus/Touring - Luxury Touring)

📋 Manual Details

Coverage Areas

Primary Coverage:

Service, Repair, Maintenance

Page Count

Estimated Page Count:

300-500 pages (typical for comprehensive service manuals of this era)

Manual Type

Type:

Service and Repair Manual

Language

Language:

English

Format

Format:

Digital (likely PDF)

📖 Manual Coverage

Systems Covered

Powertrain:

Engine (987cc), Fuel System, Ignition System, Lubrication System, Cooling System

Chassis:

Frame, Suspension (Front/Rear), Steering, Brakes (Front/Rear), Wheels and Tires

Electrical:

Wiring Diagrams, Lighting System, Instruments, Starting and Charging System, Ignition System Components

Bodywork:

Fairings, Body Panels, Seat, Storage Compartments

Procedures Included

Routine Maintenance:

Oil Change, Filter Replacement, Spark Plug Service, Valve Clearance Adjustment, Chain/Shaft Drive Lubrication

Troubleshooting:

Diagnostic procedures for common issues, electrical system fault finding, engine performance problems

Major Repairs:

Engine Rebuild, Transmission Overhaul, Suspension Component Replacement, Brake System Overhaul

Disassembly Assembly:

Step-by-step instructions for component removal and installation

Technical Depth

Depth:

Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds

📊 Manual Specifications

File Format

File Type:

PDF (Portable Document Format)

Print Quality

Image Resolution:

High resolution, suitable for printing clear diagrams and text

Binding Type

Digital Format Characteristics:

Searchable text, hyperlinked table of contents, bookmark support

Paper Type

Digital Media Characteristics:

Optimized for screen viewing and digital printing

⚙️ Engine Specifications

Primary Engine

Engine Type:

Transverse Inline-Four Cylinder

Displacement:

987 cc (987cc)

Bore X Stroke:

67 mm x 70 mm

Compression Ratio:

9.7:1 (typical for K100 models)

Performance

Horsepower:

90 hp @ 8,000 rpm (approximate, varies slightly by model/tuning)

Torque:

86 Nm (63 lb-ft) @ 6,500 rpm (approximate)

Fuel System

Fuel Delivery:

Bosch LE-Jetronic Fuel Injection (K-Jetronic for early models, transitioning to electronic injection)

Fuel Type:

Unleaded Petrol (95 RON recommended)

Ignition System

Type:

Electronic Ignition (CDI with twin spark plugs per cylinder)

Cooling System

Type:

Liquid Cooled

Lubrication System

Type:

Wet Sump

Engine Oil Capacity

Capacity:

4.2 Liters (4.4 US Quarts) with filter change

🔧 Transmission

Standard

Transmission Type:

5-Speed Manual

Final Drive:

Shaft Drive

Features

Clutch Type:

Dry Clutch (single plate for earlier models, potentially wet clutch for later evolutions)

Gear Ratios:

Detailed ratios provided in manual

Fluid Specifications

Transmission Oil Type:

SAE 90 Hypoid Gear Oil (API GL-5)

📐 Dimensions

Exterior

Wheelbase:

1497 mm (58.9 inches) (approximate)

Length:

Approx. 2150-2250 mm (84.6-88.6 inches) depending on variant

Width:

Approx. 750-900 mm (29.5-35.4 inches) depending on variant

Weights

Dry Weight:

Approx. 220-250 kg (485-551 lbs) depending on variant

Gross Vehicle Weight Rating:

Typically around 440-460 kg (970-1014 lbs)

🛡️ Safety Features

Ratings

Motorcycle Safety Standards:

Compliant with applicable European and US safety standards for motorcycles of its era

Active Features

Braking System:

Hydraulic Disc Brakes (Dual front discs, single rear disc)

Optional ABS:

BMW Integral ABS available on some later models (K100 RT/LT)

Passive Features

Lighting:

Halogen Headlight, Rear Brake Light, Turn Signals

💡 Technology Features

Infotainment

Instrumentation:

Analog Tachometer, Speedometer, Fuel Gauge, Gear Position Indicator (on some models), Warning Lights

Driver Assistance

ABS Availability:

Optional on RT/LT models, integrated braking system on some variants.

Connectivity

Charging System:

Alternator with external voltage regulator (later models integrated)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 5,000 - 10,000 km (3,000 - 6,000 miles) or annually

Valve Clearance Check:

Every 10,000 - 20,000 km (6,000 - 12,000 miles)

Spark Plug Replacement:

Every 10,000 - 20,000 km (6,000 - 12,000 miles)

Fluid Specifications

Coolant Type:

BMW recommended coolant or equivalent ethylene glycol-based antifreeze with corrosion inhibitors

Brake Fluid Type:

DOT 4 Hydraulic Brake Fluid

Known Issues

Common Problems:

Fuel injector seal leaks, regulator/rectifier failure, embrittlement of fuel lines, starter motor issues, fork seal leaks

Preventative Maintenance:

Regular inspection and replacement of rubber components, checking electrical connections, ensuring proper coolant levels

📚 Vehicle History

Brand Heritage

Manufacturer:

Bayerische Motoren Werke AG (BMW)

Model Evolution

Introduction Year:

Platform Legacy:

First major BMW motorcycle redesign in over a decade, introducing the K-Series 'flying brick' platform.

Key Advancements:

Monocoque frame construction, transverse inline-four engine, shaft drive, electronic fuel injection.

Production

Production Period:

1983 - 1992 (K100 series, followed by K1100)

Manufacturing Location:

Berlin, Germany (Spandau Plant)

🏆 Awards & Recognition

Recognitions

Industry Acclaim:

Praised for its smooth engine, comfortable ride, and long-distance touring capabilities.

Ratings

Reliability:

Generally considered reliable with proper maintenance, becoming a modern classic.