This manual covers the BMW R 100 R, a distinguished motorcycle produced between 1980 and 1984. Known for its robust 979cc air-cooled boxer-twin engine and shaft drive, the R 100 R embodies a legacy of engineering excellence, durability, and rider comfort. This model, often referred to as the R100R, builds upon the iconic R-series platform, offering a blend of classic styling and reliable performance suitable for touring and general riding. Its design emphasizes practicality and longevity, hallmarks of a commitment to quality. This comprehensive Service Repair Manual provides in-depth technical information for the BMW R 100 R (1980-1984). It details maintenance procedures, troubleshooting guides, and step-by-step repair instructions for all major systems, including the engine, transmission, brakes, electrical system, and chassis. The manual is designed to assist professional motorcycle technicians and experienced DIY mechanics in performing routine maintenance, diagnostics, and complex repairs. With high-resolution diagrams and detailed specifications, this resource is essential for ensuring the optimal performance and longevity of your R 100 R. 🏷️ Basic Information Identification Make: BMW Model: R 100 R Model Nickname: R100R Product Name: BMW R 100 R 1980-1984 Service Repair Manual Codes Vin Code Prefix: 435 (Typical for R100R models) 👋 Introduction Market Position Target Audience: Professional BMW motorcycle technicians, experienced DIY mechanics, and enthusiasts seeking in-depth technical knowledge. Value Proposition: Provides comprehensive, authoritative repair and maintenance information essential for the long-term care and optimal performance of the BMW R 100 R. Competitive Analysis Competitors: Haynes, Clymer, official BMW service bulletins (less accessible to public). Key Features Download Availability: Instant download for immediate access. Professional Focus: Prepared primarily for professional technicians, ensuring a high level of detail and accuracy. 📋 Manual Details Coverage Areas Years Covered: 1980, 1981, 1982, 1983, 1984 Engine Variants Covered: R 100 R (1000cc Boxer Twin) Page Count Estimated Page Count: Likely 300-500 pages (typical for comprehensive service manuals of this era) Manual Type Type: Service Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, tuning, component diagnostics, fuel system, ignition system, lubrication, cooling (air-cooled). Transmission: Gearbox overhaul, clutch service, shaft drive maintenance, lubrication. Brakes: Hydraulic system, caliper service, master cylinder overhaul, pad/disc replacement, bleeding procedures. Electrical System: Wiring diagrams, starter system, charging system (alternator, regulator), lighting, instrumentation, ignition system details. Suspension: Front fork service (oil change, seal replacement), rear shock absorber maintenance, linkage lubrication. Chassis And Frame: Frame inspection, steering head bearing service, wheel bearing maintenance, mounting points. Fuel System: Carburetor identification, tuning, jetting, float bowl adjustment, fuel tank and petcock maintenance. Exhaust System: Component identification, gasket replacement, exhaust flange torque specifications. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug service, valve clearance adjustment, lubrication points. Troubleshooting: Diagnostic flowcharts, common problem identification, symptom-based solutions. Repair: Step-by-step repair instructions for all major components and systems. Disassembly And Assembly: Detailed procedures for removing and reinstalling major assemblies and components. Tune Up: Engine timing, carburetor synchronization, ignition timing adjustments. Technical Depth Depth Level: Comprehensive. Suitable for professional technicians and advanced DIY enthusiasts. Diagnostic Capability: Advanced diagnostic procedures, including electrical system troubleshooting and engine performance analysis. 📊 Manual Specifications File Format File Type: PDF Searchable Text: Yes (Assumed for professional digital manuals) Print Quality Resolution: High-resolution scans for clear diagrams and text. Illustrations: Detailed diagrams, exploded views, and illustrations. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, four-stroke, boxer-twin cylinder Displacement: 979 cc (979 cubic centimeters) Bore X Stroke: 94 mm x 70.8 mm (approximate, verify with manual) Compression Ratio: 8.2:1 (typical for R100 models, verify) Valve Train: Overhead valves, pushrod actuated (OHV) Performance Horsepower: Approximately 65-70 hp at 7000 rpm (verify with manual) Torque: Approximately 75 Nm at 5500 rpm (verify with manual) Fuel System Carburetors: Dual Bing 32/40/32 or 32/40/33 carburetors (common, verify with manual) Fuel Type: Unleaded gasoline, minimum 91 octane (RON+MON/2) Ignition System Ignition Type: Electronic Ignition (Motronic or breaker point depending on exact build date and sub-model) Lubrication Oil Type: SAE 20W-50 or 10W-40 (verify specific viscosity for climate) Oil Capacity: Approximately 2.5 liters (including filter, verify with manual) Oil Filter Type: Cartridge type, e.g., Mann-Filter W712/19 or equivalent (verify with manual) 🔧 Transmission Standard Transmission Type: 5-speed manual gearbox Clutch: Single dry plate, diaphragm spring Final Drive: Shaft drive Features Gear Ratios: Specific gear ratios will be detailed in the manual. Gearbox Oil Type: SAE 75W-90 or 80W-90 GL-5 gear oil (verify with manual) Gearbox Oil Capacity: Approximately 0.9 - 1.1 liters (verify with manual) 📐 Dimensions Exterior Wheelbase: Approximately 1465 mm (57.7 inches, verify with manual) Weights Dry Weight: Approximately 207 kg (456 lbs, verify with manual) Gross Vehicle Weight Rating: Not applicable for motorcycles in this classification, but payload capacity will be detailed. 🛡️ Safety Features Ratings Crash Safety Ratings:...