🏷️ Basic Information Identification Make: BMW Model: R1100RT, R1100RS, R850GS, R1100GS, R850R, R1100R Codes Chassis Codes: R1100RT: E850, R1100RS: E852, R850GS: E850, R1100GS: E850, R850R: E852, R1100R: E852 Generation Production Years: 1993-2000 👋 Introduction Market Position Market Segment: BMW's Boxer-engined touring and sport-touring motorcycles, representing premium quality and engineering for the discerning rider. Competitive Analysis Key Competitors: Honda ST1100, Yamaha FJ1200, Kawasaki GTR1000, Moto Guzzi California. Key Features Vehicle Highlights: Torque-rich boxer-twin engines, comfortable ergonomics for long-distance travel (especially RT), advanced suspension systems (Telelever/Paralever), integrated ABS on many models, durable build quality. Manual Value Manual Purpose: Empowers owners and independent technicians with the knowledge to maintain, troubleshoot, and repair these complex BMW motorcycles, ensuring longevity and optimal performance. 📋 Manual Details Coverage Areas Covered Models: BMW R1100RT, BMW R1100RS, BMW R850GS, BMW R1100GS, BMW R850R, BMW R1100R Covered Years: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 Page Count Estimated Page Count: 800-1200 (typical for comprehensive service manuals of this era and scope) Manual Type Manual Type: Service Repair Workshop Manual Language Language: English Format Format: Downloadable Digital File (PDF) 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanical (disassembly, assembly, overhaul), lubrication, cooling, fuel delivery (including fuel injection), ignition system, exhaust system, engine management (ECU, sensors). Transmission Drivetrain: Clutch operation and adjustment, gearbox disassembly and assembly, final drive maintenance and repair, driveshaft and universal joint service. Chassis Suspension Brakes: Front fork (Telelever) overhaul and adjustment, rear shock absorber (Paralever) service, brake system (including ABS II or ABS-N) inspection, fluid replacement, component overhaul (calipers, master cylinders), wheel bearing maintenance. Electrical Systems: Wiring diagrams, battery service, starter motor, alternator, lighting systems (headlights, taillights, indicators), instrument cluster, ignition switch, fuses, relays, common electrical troubleshooting procedures. Bodywork Frame: Fairing removal and installation, seat servicing, fuel tank maintenance, frame inspection, body panel repair and replacement procedures. Procedures Included Maintenance Tasks: Oil and filter changes, spark plug replacement, air filter cleaning/replacement, valve clearance checks and adjustments, brake fluid replacement, coolant flush and replacement, chain/driveshaft lubrication and adjustment, tire pressure checks. Repair Procedures: Engine rebuilds, transmission overhauls, suspension component replacement, electrical system diagnostics and repair, fuel system troubleshooting and component replacement, brake caliper and master cylinder rebuilds. Troubleshooting Guides: Systematic fault finding for engine performance, electrical issues, braking problems, and other common malfunctions with diagnostic flowcharts. Technical Depth Technical Depth: Comprehensive: Covers everything from basic routine maintenance and pre-ride inspections to complete engine and transmission rebuilds, advanced electrical diagnostics, and suspension overhauls. Includes torque specifications, special tool requirements, and detailed exploded views. 📊 Manual Specifications File Format File Format: PDF Searchable Text: Likely (depending on scan quality of original document) Print Quality Print Quality Assurance: Digital format allows for high-resolution viewing and printing of diagrams and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Air/oil-cooled, four-stroke, flat-twin (boxer) engine. Displacement: R850 variants: 848 cc; R1100 variants: 1085 cc. Bore X Stroke: R850: 82.5 mm x 74.5 mm; R1100: 99 mm x 70.5 mm. Compression Ratio: R850: 10.0:1; R1100: 10.7:1. Performance Horsepower: R850: approx. 70 hp @ 7250 rpm; R1100: approx. 90 hp @ 7250 rpm (specifics vary slightly by model and year). Torque: R850: approx. 77 Nm (57 lb-ft) @ 5500 rpm; R1100: approx. 98 Nm (72 lb-ft) @ 5250 rpm (specifics vary slightly by model and year). Fuel System Fuel Delivery: Bosch Motronic Electronic Fuel Injection (EFI) with two injectors per cylinder. Fuel Type: Unleaded gasoline, 95-98 RON (octane rating). Engine Management ECU System: Bosch Motronic 2.1 or 2.2 🔧 Transmission Standard Transmission Type: 5-speed manual gearbox. Clutch Type: Dry, single-plate, hydraulically operated. Features Final Drive: Shaft drive with bevel gear housing (Paralever system for rear suspension linkage). Fluid Specifications Gearbox Oil Type: SAE 75W/90 API GL-5 gear oil (BMW recommends specific grades). Final Drive Oil Type: SAE 75W/90 API GL-5 gear oil (BMW recommends specific grades). 📐 Dimensions Exterior Length: Varies by model (RT typically longest, GS shortest). Example RT: ~2230 mm. Width: Varies by model. Example RT: ~930 mm (including mirrors). Height: Varies by model. Example RT: ~1400 mm. Weights Dry Weight: R850GS: ~215 kg; R1100GS: ~245 kg; R1100RS: ~245 kg; R1100RT: ~280 kg (all approximate, curb weight). Fuel Tank Capacity: R850/R1100 models: 20-25 Liters (typically 25L for RT/RS, 20L for GS/R). Payload Capacity: Approximately 200-220 kg depending on model and specific configuration. 🛡️ Safety Features Ratings ABS Availability: Optional or standard depending on model and year (ABS II, ABS-N). Active Features Braking System: Dual disc front brakes, single disc rear brake. Often equipped with BMW's integrated ABS system which combines braking for front and rear wheels via the handbrake lever. Passive Features Lighting: Halogen or H4 headlights, LED taillights (on later models), turn signals. Ergonomics: Designed for rider comfort and control, with adjustable levers and seating positions on...