🏷️ Basic Information Identification Make: BMW Model: R80GS / R100GS Model Variant: R80GS, R100GS Year: 1996 Codes Chassis Codes: 247E (R80GS), 247B (R100GS) 👋 Introduction Market Position Market Segment: Dual-sport / Adventure motorcycle Competitive Analysis Competitors: Honda Africa Twin (XRV650/750), Yamaha Tenere, Kawasaki KLR650, Suzuki DR650. Key Features Design Philosophy: Robust, air-cooled boxer twin engine known for reliability and torque; shaft drive; capable off-road and comfortable for touring. 📋 Manual Details Coverage Areas Comprehensive Coverage: Yes, covers all aspects of service and repair for the specified models and year. Page Count Estimated Page Count: 300-500 (typical for comprehensive BMW motorcycle manuals of this era) Manual Type Manual Type: Service Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Overhaul: Complete disassembly, inspection, repair, and reassembly of the boxer twin engine. Transmission Service: Gearbox disassembly, inspection, repair, and reassembly; clutch service and replacement. Fuel System: Carburetor (Dell'Orto or Bing) overhaul, adjustment, and troubleshooting; fuel tank and pump maintenance. Ignition System: Ignition timing, coil testing, spark plug specifications, and electronic ignition system troubleshooting. Electrical System: Wiring diagrams, battery maintenance, charging system (alternator, regulator), lighting, and starter motor. Suspension And Steering: Front fork (telelever or conventional) overhaul, rear shock absorber replacement, steering head bearing service. Braking System: Brake fluid replacement, caliper overhaul, pad replacement, disc inspection, and hydraulic system bleeding. Wheel And Tire Service: Wheel bearing replacement, spoke tensioning (if applicable), tire mounting and balancing. Exhaust System: Exhaust system inspection, gasket replacement, and muffler service. Frame And Bodywork: Frame inspection, fairing and body panel removal/installation, seat service. Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment, brake checks, spark plug checks. Troubleshooting Guides: Diagnostic procedures for common problems across all major systems. Component Rebuilds: Detailed instructions for rebuilding engines, transmissions, carburetors, and brake calipers. Electrical Diagnostics: Step-by-step troubleshooting using wiring diagrams and component testing methods. Suspension Setup: Adjustments and overhaul procedures for front and rear suspension components. Technical Depth Technical Depth: Comprehensive, ranging from basic owner-level maintenance to in-depth professional workshop repairs and diagnostics. 📊 Manual Specifications File Format File Format: Searchable PDF Print Quality Print Quality: High-resolution scans, suitable for printing high-quality diagrams and text. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, four-stroke, boxer twin Engine Displacement R80: 797.5 cc Engine Displacement R100: 980 cc Bore X Stroke R80: 82.5 mm x 75 mm Bore X Stroke R100: 94 mm x 70.7 mm Compression Ratio R80: 8.2:1 Compression Ratio R100: 8.5:1 Horsepower R80 Approx: 50 hp @ 6500 rpm Horsepower R100 Approx: 60 hp @ 6250 rpm Torque R80 Approx: 56 Nm (41 lb-ft) @ 5000 rpm Torque R100 Approx: 70 Nm (52 lb-ft) @ 5000 rpm Fuel System Carburetors R80: 2 x Dell'Orto PHM 40 or Bing 40 Carburetors R100: 2 x Bing 40 Fuel Tank Capacity: 20 Liters (5.3 US gal) Fuel Type: Unleaded gasoline, minimum 91 RON 🔧 Transmission Standard Transmission Type: 5-speed manual Final Drive: Shaft drive Features Clutch Type: Single dry plate, diaphragm spring Transmission Fluid Type: SAE 80W-90 API GL-5 gear oil Transmission Fluid Capacity: Approx. 0.8 Liters 📐 Dimensions Exterior Length Approx: 2200 mm (86.6 in) Width Approx: 890 mm (35.0 in) Height Approx: 1370 mm (53.9 in) Weights Dry Weight R80 Approx: 215 kg (474 lbs) Dry Weight R100 Approx: 225 kg (496 lbs) Gvwr Approx: 430 kg (948 lbs) Seat Height Approx: 850 mm (33.5 in) 🛡️ Safety Features Ratings Safety Certification: ECE standards for motorcycles of the era Active Features Braking System Front: Dual 285 mm discs with dual-piston calipers (e.g., Brembo or Grimeca) Braking System Rear: 200 mm drum brake (early models) or single 285 mm disc with single-piston caliper (later models) Passive Features Lighting: Halogen headlamp, integrated turn signals, taillight/brake light. 💡 Technology Features Infotainment Infotainment System: N/A (classic motorcycle, no integrated infotainment) Driver Assistance Driver Assistance Features: N/A Connectivity Connectivity Options: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000-10,000 km (3,000-6,000 miles) or annually, whichever comes first. Valve Adjustment Interval: Every 10,000 km (6,000 miles) Final Drive Oil Change: Every 10,000 km (6,000 miles) Fluid Specifications Engine Oil Type: SAE 20W-50 or SAE 15W-50 API SG or higher (e.g., BMW Motorrad ADVANTEC) Engine Oil Capacity Approx: 2.5 Liters (with filter change) Brake Fluid Type: DOT 4 (glycol-based) Known Issues Common Issues: Worn output shaft seal, paralever pivot bearings, clutch slave cylinder leaks, starter motor brushes, fork seal leaks. Carburetor Issues: Float bowl leaks, synchronization drift, jet wear. Electrical Issues: Corrosion in connectors, failing voltage regulator, worn starter solenoid. 📚 Vehicle History Brand Heritage Brand Origin: Bayerische Motoren Werke AG (BMW), Germany, founded 1916. Model Evolution Gs Series Heritage: The R80GS and R100GS are part of BMW's legendary 'Gelände/Straße' (Off-road/Street) series, pioneering the adventure touring...