🏷️ Basic Information Identification Make: BMW Model: R80, R90, R100 Year: 1982 Generation Series: Airhead (247 Type) 👋 Introduction Market Position Segment: Classic European Motorcycles Target Audience: BMW R-Series motorcycle owners, mechanics, restorers, hobbyists Competitive Analysis Value Proposition: Provides essential technical data for maintaining and repairing a highly regarded range of BMW motorcycles, often unavailable through other means. Key Features Diagnostic Tools: Includes troubleshooting guides and potential fault diagnosis based on symptoms. Technical Illustrations: Likely contains diagrams and illustrations crucial for understanding complex assemblies. Original Documentation: Represents factory-level technical information directly applicable to the 1982 models. 📋 Manual Details Coverage Areas Models Covered: R80/7, R80G/S, R80RT, R80ST, R90/6, R90S, R100/7, R100S, R100CS, R100RS, R100RT, R100GS (early models) Engines Covered: 797cc, 897cc, 979cc, 980cc Boxer Twin Transmissions Covered: 4-speed and 5-speed manual transmissions Page Count Estimated Page Count: Approx. 300-400 pages (typical for a comprehensive workshop manual of this era) Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete overhaul, top-end (cylinder head, valve train), bottom-end (crankshaft, connecting rods, pistons), timing, lubrication system, fuel delivery (carburetors/injection), ignition system Transmission: Gearbox disassembly and assembly, clutch service, shift mechanism, final drive unit Chassis: Frame, swingarm, driveshaft, suspension (forks, shock absorbers), steering head bearings Brakes: Front and rear brake systems (drum and disc variations), master cylinders, calipers, brake lines Electrical: Wiring diagrams, charging system (alternator, regulator), starting system (starter motor, battery), lighting, ignition, instrumentation Fuel System: Fuel tank, fuel lines, petcock, carburetor overhaul (Bing 32/40/42), fuel injection (K-Jetronic for some R100 models) Bodywork: Body panels, fenders, seat, tank, fairings (if equipped), controls Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, lubrication, valve clearance adjustment, carburetor synchronization, brake bleeding Troubleshooting: Diagnostic procedures for common problems, symptom-based troubleshooting guides Repair: Step-by-step instructions for component removal, repair, and reinstallation Rebuilds: Detailed instructions for engine and gearbox rebuilds Specifications: Torque specifications, clearances, fluid capacities, electrical resistance values Technical Depth Depth: Comprehensive: Covers routine maintenance, advanced diagnostics, and complete mechanical and electrical overhauls. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchable: Yes (typically, depending on the scan quality) Printable: Yes Print Quality Quality: Digital (quality dependent on original source scan) Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: Air-cooled, four-stroke Boxer Twin Configuration: Horizontally opposed cylinders Displacement R80: 797.1 cc (48.64 cu in) Displacement R90: 897.1 cc (54.75 cu in) Displacement R100: 979.1 cc (59.74 cu in) and 980 cc (59.8 cu in) depending on specific R100 variant Bore Stroke R80: 82 mm x 75.6 mm (3.23 in x 2.98 in) Bore Stroke R90: 90 mm x 70.6 mm (3.54 in x 2.78 in) Bore Stroke R100: 94 mm x 70.6 mm (3.70 in x 2.78 in) or 94 mm x 72.6 mm (3.70 in x 2.86 in) Performance Horsepower R80: Approx. 50 hp (37 kW) at 6500 rpm Horsepower R90S: Approx. 65 hp (48 kW) at 7000 rpm Horsepower R100: Approx. 65-70 hp (48-52 kW) at 7000 rpm (varies by model) Torque R100: Approx. 70-75 Nm (51-55 lb-ft) at 6000 rpm (varies by model) Fuel System Carburetors R80 R90: Dual Bing 32mm CV carburetors (typically) Carburetors R100: Dual Bing 32mm or 40mm CV carburetors, or Bosch LE-Jetronic fuel injection on some models Fuel Type: Unleaded gasoline, 90-98 octane (RON+MON)/2 (AKI) Fuel Capacity: Approx. 18-23 liters (4.75-6.08 US gallons) depending on tank size and model 🔧 Transmission Standard Type: 5-speed manual transmission (standard on most 1982 models, some earlier models had 4-speed) Optional Types: 4-speed manual (on some earlier R80 and R100 models, less common by 1982) Features Drive Type: Shaft drive (via driveshaft to rear wheel) Clutch: Single dry plate clutch, hydraulically actuated 📐 Dimensions Exterior Wheelbase: Varies by model (approx. 1440-1500 mm / 56.7-59.1 inches) Length: Varies by model (approx. 2100-2200 mm / 82.7-86.6 inches) Weights Dry Weight: Varies by model (approx. 190-220 kg / 419-485 lbs) Gross Vehicle Weight Rating: Varies by model (typically around 350-400 kg / 772-882 lbs) 🛡️ Safety Features Ratings Crash Test Results: N/A (Motorcycles are not subjected to standard automotive crash testing protocols) Active Features Braking System: Front disc brake (single or dual, depending on model), rear drum brake (typically). Some R100 models may have dual front discs. Suspension: Telescopic front forks, Dual-sided swingarm with twin shock absorbers Passive Features Lighting: Halogen headlight, taillight, brake light, turn signals 💡 Technology Features Infotainment Features: N/A (Focus is on mechanical and electrical systems, no modern infotainment) Driver Assistance Features: N/A (No electronic driver assistance systems) 🔧 Maintenance Service Intervals Oil Change: Every 5,000 km (3,000 miles) or annually, whichever comes first. Valve Adjustment: Every 10,000 km (6,000 miles) Carburetor Sync: As needed, typically with valve adjustments or if symptoms arise. Fluid Specifications Engine Oil: SAE 20W-50...