🏷️ Basic Information Identification Make: BMW Model: R80GS / R100R Model Generations: Paralever models Codes Model Code R80Gs: R80G/S / R80GS (depending on specific variant and market) Model Code R100R: R100R 👋 Introduction Market Position Target Audience: Both do-it-yourself enthusiasts and experienced professional mechanics working on BMW R80GS and R100R motorcycles. Motorcycle Segment: Dual-sport/Adventure (R80GS), Roadster/Classic Motorcycle (R100R). Competitive Analysis Value Proposition: An inexpensive yet comprehensive resource for maintaining, troubleshooting, and repairing these iconic BMW motorcycles, saving money on labor costs and ensuring longevity. Key Features Key Features: Easy-to-read text, top-quality diagrams, step-by-step instructions, exploded views, instant download, comprehensive coverage of all systems. 📋 Manual Details Coverage Areas Applicable Years: 1978-1996 Covered Models: BMW R80GS, BMW R100R Page Count Estimated Page Count: Varies by specific publication, typically 300-600+ pages for a comprehensive factory manual. Manual Type Manual Classification: Factory Service/Repair/Workshop Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine disassembly/assembly, cylinder head, valves, crankshaft, pistons, cylinders, lubrication system, cooling system (oil cooling), fuel system (carburetor and fuel injection variants if applicable), intake and exhaust systems. Drivetrain Systems: Clutch, transmission (gearbox), final drive (shaft drive), gearbox internals, shift linkage, driveshaft, universal joints. Chassis Systems: Frame, body panels, subframe, suspension (front forks and rear Monolever/Paralever swingarm), steering head bearings, wheels, tires, brakes (hydraulic drum and disc), electrical system, battery, charging system (alternator, starter clutch), ignition system, lighting, instrumentation, switches, wiring diagrams. Electrical System Details: Alternator, regulator, battery, starter motor, ignition coil, spark plug, lighting circuits (headlight, taillight, turn signals), horn, instrumentation illumination, switchgear diagnostics, and detailed wiring diagrams. Procedures Included Maintenance Procedures: Scheduled maintenance, lubrication intervals, fluid changes (engine oil, transmission oil, final drive oil), filter replacements, spark plug service, brake bleeding, cable adjustments, valve clearance adjustment, bearing lubrication. Repair Procedures: Complete engine rebuilds, gearbox overhaul, suspension component replacement, brake caliper servicing, electrical component diagnostics and repair, bodywork repair and alignment, starter motor and alternator repair. Diagnostic Procedures: Troubleshooting guides for common faults, electrical system diagnostics, engine performance issues, transmission problems. Suspension Overhaul: Detailed procedures for fork seal replacement, fork oil changes, shock absorber inspection and replacement, swingarm bearing maintenance, and final drive unit servicing. Technical Depth Depth Of Coverage: Comprehensive, covering everything from basic routine maintenance to complete mechanical and electrical overhauls. Includes detailed exploded views and step-by-step instructions for disassembly and reassembly of all major components. Torques And Clearances: Includes critical torque specifications for engine, transmission, chassis, and suspension fasteners, as well as precise valve clearance settings and other critical measurements. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Compatibility: All versions of Windows & Mac Searchability: PDF format allows for text searching within the document, greatly enhancing efficiency in finding specific information. Print Quality Printability: All pages are printable for easy workshop use. Binding Type Binding Description: Digital format (no physical binding). Instant download saves on postage and packaging. Paper Type Digital Paper Equivalent: High-resolution digital pages with clear text and high-quality diagrams, mimicking printed manual quality. Software Requirements Reader Software: Adobe PDF Reader Archiving Software: WinZip or equivalent archiving utility required for decompression. ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, four-stroke, horizontally opposed twin-cylinder (Boxer) Engine Displacement R80Gs: Approximately 798 cc (for R80GS variants) Engine Displacement R100R: Approximately 980 cc (for R100R variants) Performance Horsepower R80Gs Approx: Around 50-55 hp (varies by specific model year and tuning) Horsepower R100R Approx: Around 65-70 hp (varies by specific model year and tuning) Fuel System Carburetors R80Gs: Typically Dell'Orto PHM 32 or Bing 32 carburetors (verify specific model) Carburetors R100R: Typically Bing 40 carburetors (verify specific model) 🔧 Transmission Standard Transmission Type: 5-speed constant mesh gearbox Optional Optional Features: Not applicable for these models as a factory option, but aftermarket upgrades exist. Features Driveshaft System: Shaft drive with Monolever (R80GS) or Paralever (R100R) rear suspension linkage. 📐 Dimensions Exterior Wheelbase Approx: Varies by model year and specific GS/R variants, generally around 1450-1480 mm. Weights Dry Weight R80Gs Approx: Around 180-190 kg Dry Weight R100R Approx: Around 195-205 kg 🛡️ Safety Features Ratings Safety Ratings Mention: Not applicable in the same manner as modern vehicles; safety focuses on robust design, reliable braking, and rider control. Active Features Braking System: Hydraulic front disc brake, hydraulic rear drum or disc brake (depending on specific R100R variant and later R80GS models). Passive Features Frame Construction: Steel tube frame designed for strength and rigidity. 💡 Technology Features Infotainment Infotainment Features: Basic instrumentation (speedometer, tachometer, indicator lights). No electronic infotainment systems. Driver Assistance Rider Assistance: ABS was not a standard or widely available option during the majority of this production span. Focus is on mechanical and rider-input based control. Connectivity Connectivity Features: No electronic connectivity features. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 miles or annually, depending on usage and manufacturer recommendations found...