🏷️ Basic Information Identification Make: BMW Model: R Series (R80, R90, R100) Year Covered: 1995 Codes Engine Code General: Boxer Twin Cylinder (various displacements) 👋 Introduction Market Position Positioning: Essential technical resource for owners and independent repair shops specializing in classic BMW airhead motorcycles. Competitive Analysis Competitors: Manufacturer service manuals, Haynes, Clymer (this manual aims for professional-level detail often found in OEM manuals). Key Features Features: Comprehensive coverage of R80, R90, and R100 models from the 1995 era, detailed schematics, clear instructions, and troubleshooting guides. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Page Count Estimated Page Count: High (typically 300+ pages for comprehensive manuals) Manual Type Type: Service and Repair Workshop Manual Language Language: English Format Format: Likely Digital (PDF) for widespread distribution 📖 Manual Coverage Systems Covered Engine: Engine disassembly, assembly, tuning, internal components, lubrication, cooling, fuel delivery (carburetor/injection), ignition system, exhaust system Transmission: Gearbox overhaul, clutch service, shaft and gear inspection, lubrication Drivetrain: Driveshaft, final drive, wheel bearings, universal joints Chassis: Frame inspection and repair, suspension (front and rear), steering system components, wheel alignment Brakes: Brake system service (hydraulic), caliper overhaul, master cylinder, brake lines, pads, discs, rear drum (if applicable) Electrical: Wiring diagrams, lighting system, battery, charging system (alternator/generator), starter motor, ignition switch, fuses, relays, instrumentation Bodywork: Fairings, body panels, seat, fuel tank, fenders, fairing mounting Procedures Included Maintenance: Routine checks, oil changes, filter replacements, spark plug servicing, brake fluid changes, gear oil changes, lubrication points Troubleshooting: Diagnostic procedures for common faults, fault finding charts, symptom-based troubleshooting Repair: Step-by-step repair instructions for all major components and systems Assembly: Detailed assembly procedures after disassembly Disassembly: Comprehensive instructions for component removal Technical Depth Depth: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts Diagrams: Includes exploded views, schematics, and detailed illustrations 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) - assumed for digital products Print Quality Quality: High Resolution (essential for readability of diagrams and text) Binding Type Binding: N/A (if digital); Professional binding if printed Paper Type Paper: N/A (if digital); High-quality, durable paper if printed ⚙️ Engine Specifications Primary Engine Type: Air-cooled, four-stroke, boxer twin-cylinder engine Displacement R80: 797.5 cc (approx. 800cc) Displacement R90: 897.1 cc (approx. 900cc) Displacement R100: 980.0 cc to 1047.2 cc (approx. 1000cc-1047cc) Bore Stroke R100Gs Typical: 90.0 mm x 75.6 mm (example) Performance Horsepower R100Gs Approx: 61 hp @ 6,000 rpm (example) Torque R100Gs Approx: 76 Nm @ 3,500 rpm (example) Fuel System Fuel Delivery: Dual carburetors (e.g., Dell'Orto, Bing) or Bosch Monojetronic Fuel Injection (on later R100 models) Carburetor Type Example: Bing 32mm or 40mm (depending on model variant) Fuel Type: Unleaded gasoline (premium recommended) Ignition System Ignition Type: Electronic ignition (breakerless distributor or distributorless systems on later models) Cooling System Cooling Method: Air cooling with oil cooling (oil cooler integrated into the engine circuit) 🔧 Transmission Standard Type: 5-speed manual gearbox, shaft drive Optional Optional Features: N/A (typically a single configuration) Features Clutch Type: Dry single-plate clutch Gear Ratios: Specific ratios vary by model and are detailed in the manual Final Drive Ratio: Specific ratios vary by model and are detailed in the manual 📐 Dimensions Exterior Wheelbase R100Gs Approx: 1430 mm (56.3 in) (example) Seat Height R100Gs Approx: 850 mm (33.5 in) (example) Weights Dry Weight R100Gs Approx: 215 kg (474 lbs) (example) Gross Vehicle Weight Rating Approx: 400 kg (882 lbs) (example) 🛡️ Safety Features Ratings Crash Test Ratings: N/A (Motorcycles typically do not undergo standardized crash testing like cars) Active Features Braking System: Dual front disc brakes, single rear disc brake (most models, ABS optional on some R100 variants) Passive Features Lighting: Halogen headlight, LED tail light (often retrofitted), turn signals 💡 Technology Features Infotainment Features: Basic instrumentation: speedometer, tachometer, odometer, trip meter, indicator lights. No modern infotainment systems. Driver Assistance Features: Optional ABS (Anti-lock Braking System) on some R100 models. Otherwise, no electronic driver assistance features. Connectivity Features: N/A (No Bluetooth, Wi-Fi, or smartphone integration). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000 - 10,000 km (3,000 - 6,000 miles) or annually, as specified in the manual. Valve Adjustment Interval: Typically every 10,000 - 20,000 km (6,000 - 12,000 miles), crucial for boxer engine performance. Spark Plug Replacement: As per manual, typically every 10,000 - 20,000 km (6,000 - 12,000 miles). Fluid Specifications Engine Oil Type: Multi-grade oil, e.g., SAE 20W-50 or 10W-40, API SG or higher (refer to manual for exact specifications). Engine Oil Capacity Approx: 3.0 - 3.5 liters (3.2 - 3.7 US qt) with filter change (check manual for specific model). Transmission Oil Type: Gear oil, e.g., SAE 75W-90 or 80W-90 GL-5 (refer to manual). Final Drive Oil Type: Gear oil, e.g., SAE 80W-90 GL-5 (refer to manual). Brake Fluid Type: DOT 4 (refer to manual for specific type and change intervals). Known Issues Common...