🏷️ Basic Information Identification Make: BMW Model: R80GS / R1200C Model Variant: R80GS, R1200C Codes Product Id: BMW-R80GS-R1200C-RM-PDF 👋 Introduction Market Position Target Audience: BMW motorcycle owners seeking to perform maintenance and repairs themselves, independent repair shops, and enthusiasts. Competitive Analysis Value Proposition: Provides factory-level technical information, saving time and money on repairs compared to dealer labor rates. Key Features Authenticity: Same type of manual used by dealership technicians. Comprehensiveness: Includes all necessary instructions and diagrams for effective repair. Convenience: Instant download allows immediate access to repair information. 📋 Manual Details Coverage Areas Manual Type: Service / Repair / Workshop Manual Language: English Format: PDF Download Issuance Date: March 1999 Compatibility: All Versions of Windows & Mac Requirements: PDF reader 📖 Manual Coverage Systems Covered Engine Top End: Detailed procedures for cylinder head, valves, piston, rings, camshaft, and timing. Fuel System: Carburetor/injector servicing, fuel pump, fuel filter, and fuel tank procedures. Cooling System: Radiator, fan, coolant hoses, and thermostat maintenance and replacement. Engine Lubrication System: Oil pump, oil filter, oil pan, and lubrication circuit servicing. Clutch: Clutch assembly, pressure plate, friction plates, and clutch cable/hydraulic system. Engine Removal Installation: Comprehensive steps for engine removal and reinstallation from the chassis. Crankshaft Transmission: Gearbox servicing, gear selection, crankshaft, and bearing inspection. Wheels Tires: Wheel bearing inspection, tire mounting/balancing, and rim specifications. Final Drive: Shaft drive system servicing, universal joints, and final drive unit maintenance. Brakes: Brake pad/shoe replacement, caliper servicing, brake fluid replacement, and brake line inspection. Suspension: Front fork servicing (seals, oil), rear shock absorber inspection and replacement. Steering: Handlebar, steering head bearings, and steering linkage inspection and adjustment. Frame: Chassis inspection, frame integrity checks, and component mounting. Electrical System: Wiring diagrams, battery servicing, charging system (alternator, regulator), ignition system, and lighting. Appendix: Includes torque specifications, fastener information, and troubleshooting guides....
Troubleshooting common problems, fault finding for electrical and mechanical systems.
Component Rebuild:
Detailed instructions for disassembling, inspecting, repairing, and reassembling key components like engines, transmissions, and suspension.
Torque Specifications:
Precise torque values for all critical fasteners to ensure proper assembly and safety.
Wiring Diagrams:
Clear and detailed electrical schematics for troubleshooting and repair.
Technical Depth
Depth Level:
Comprehensive, covering routine maintenance to full engine and chassis overhauls. Used by dealership technicians.
📊 Manual Specifications
File Format
File Type:
PDF
Searchable:
Yes (typical for professional PDFs)
Printable:
Yes
Print Quality
Quality:
Professional, high-resolution scans/digital reproduction suitable for printing.
Binding Type
Type:
N/A (Digital PDF Download)
Paper Type
Type:
N/A (Digital PDF Download)
⚙️ Engine Specifications
Primary Engine
Bmw R80Gs Engine Type:
Air-cooled, four-stroke, boxer-twin engine
Bmw R80Gs Displacement:
Approximately 797.5 cc
Bmw R80Gs Bore X Stroke:
80.9 mm x 78.2 mm (typical for R80 models)
Bmw R80Gs Compression Ratio:
Typically around 8.2:1 or 8.5:1, but specific value should be confirmed from manual
Bmw R80Gs Power Output:
Approximately 50 hp @ 6,500 rpm (figures vary by specific R80GS model/tuning)
Bmw R80Gs Torque:
Approximately 56 Nm @ 4,500 rpm (figures vary by specific R80GS model/tuning)
Bmw R80Gs Fuel System:
Dual Bing 32mm carburetors (typical for R80 models)
Bmw R1200C Engine Type:
Air/oil-cooled, four-stroke, boxer-twin engine
Bmw R1200C Displacement:
1170 cc
Bmw R1200C Bore X Stroke:
101 mm x 73 mm
Bmw R1200C Compression Ratio:
11.0:1
Bmw R1200C Power Output:
61 kW (82 hp) @ 6,750 rpm
Bmw R1200C Torque:
105 Nm (77 lb-ft) @ 5,750 rpm
Bmw R1200C Fuel System:
Electronic fuel injection (BMS-K)
Performance
Fuel Type:
Unleaded gasoline, minimum 95 RON
🔧 Transmission
Standard
Bmw R80Gs Type:
5-speed manual gearbox
Bmw R80Gs Clutch:
Single dry plate, diaphragm spring
Bmw R1200C Type:
5-speed manual gearbox
Bmw R1200C Clutch:
Single dry plate, diaphragm spring
Features
Final Drive:
Shaft drive with Paralever system (R80GS) or Monolever (R1200C) depending on variant.
📐 Dimensions
Exterior
Bmw R80Gs Wheelbase:
Approx. 1450 mm (varies slightly by model year)
Bmw R80Gs Seat Height:
Approx. 860 mm (adjustable) (varies by model year)
Weights
Bmw R80Gs Dry Weight:
Approx. 185 kg (varies by model year)
Bmw R1200C Dry Weight:
Approx. 217 kg
💡 Technology Features
Infotainment
R80Gs Technology:
Primarily mechanical systems with basic analog instrumentation. Focus is on reliability and rider engagement.
R1200C Technology:
Features a more integrated electrical system with ABS (optional on some models), digital clock, and generally more refined rider interfaces than earlier models.
Driver Assistance
R80Gs Assistance:
No electronic driver assistance systems. Emphasis on rider skill and mechanical feedback.
R1200C Assistance:
Optional Anti-lock Braking System (ABS II) available on certain R1200C models, enhancing braking safety.
Connectivity
Connectivity Features:
None. These are pre-digital connectivity eras for motorcycles.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically every 10,000 km or annually (refer to manual for exact interval and oil type)
Valve Check Interval:
Typically every 20,000 km or as specified in the manual (crucial for boxer engines).
Brake Fluid Change:
Every 2 years or as per manual recommendations, especially if DOT 3/4 fluid is used.
Fluid Specifications
Engine Oil R80Gs:
BMW recommends specific viscosity grades (e.g., 20W-50 or 15W-50) for air-cooled boxers. Refer to manual for precise spec and API rating.
Engine Oil R1200C:
BMW Motorrad recommends SAE 15W-50 synthetic engine oil for optimal performance. Check manual for exact API classification and capacity.
Transmission Oil:
Gearbox oil specifications (e.g., SAE 75W-90 or 80W-90 API GL-5) should be strictly followed as per the manual.
Final Drive Oil:
Specific gear oil for the final drive, often SAE 75W-90 or 80W-90. Capacity and API rating critical. Refer to manual.
Brake Fluid:
DOT 4 brake fluid recommended for most BMWs of this era. Ensure compatibility and change as per schedule.
Known Issues
Common R80Gs Issues:
Seals (crankshaft, transmission output), carburetor synchronization, wear in the driveshaft U-joint, and electrical connector corrosion are commonly cited.
Common R1200C Issues:
Telelever seal leaks, driveshaft spline lubrication, and intermittent electrical issues can occur. Refer to manual for specific troubleshooting.
📚 Vehicle History
Brand Heritage
Heritage:
BMW Motorrad has a long history of producing robust and innovative motorcycles, particularly known for their boxer engines and durability.
Model Evolution
R80Gs Evolution:
The R80GS is part of the legendary GS (Geländestraße/Sport) dual-sport lineage, derived from the R80G/S and a precursor to later larger-displacement GS models. Known for its off-road capability and touring comfort.
R1200C Evolution:
The R1200C represents BMW's foray into the cruiser segment, featuring a distinctive styling and the characteristic boxer engine, offering a relaxed riding experience.
Production
R80Gs Production Years:
1987-1995 (approximate, specific model R80GS variant may vary)
R1200C Production Years:
1997-2004
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