Positioning:
Essential resource for owners and technicians of the iconic BMW R100 series motorcycles from 1982.
Comparative Value:
Provides the definitive technical data and procedural guidance necessary for maintaining and repairing this classic airhead BMW, surpassing generic repair guides.
Uniqueness:
Covers the specific nuances of the 1982 R100 models, offering detailed insights often missing in broader BMW manuals.
Target Audience:
DIY enthusiasts, classic motorcycle mechanics, and BMW R100 owners seeking to maintain their vehicle's originality and performance.
Systems Covered:
Engine, Transmission, Drivetrain, Chassis, Electrical System, Fuel System, Braking System, Suspension, Bodywork, Troubleshooting, Diagnostics
Total Pages:
Estimated 400-600 Pages (Typical for Comprehensive Service Manuals of this era)
Type:
Full Service and Repair Manual
Format:
Digital (PDF) or Printed (as specified by seller)
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly for the R100 boxer engine.
Transmission Service:
Detailed procedures for gearbox maintenance, repair, and rebuild.
Drivetrain Maintenance:
Shaft drive system maintenance, including universal joints and final drive unit.
Electrical Diagnostics:
Wiring diagrams, troubleshooting guides for ignition, lighting, charging systems.
Fuel System Calibration:
Carburetor (likely Bing) adjustment, overhaul, and tuning procedures.
Braking System Overhaul:
Front and rear brake system maintenance, including caliper rebuild and fluid replacement.
Suspension Adjustment:
Front fork and rear shock absorber service, adjustment, and replacement.
Bodywork Restoration:
Fairing, tank, seat, and fender repair and refurbishment guidance.
Scheduled Maintenance:
Detailed maintenance schedules, lubrication points, and inspection checklists.
Troubleshooting Guides:
Systematic diagnostic procedures for common and uncommon faults.
Rebuild Instructions:
Step-by-step instructions for major component rebuilds, including the engine.
Technical Adjustments:
Valve clearance adjustment, ignition timing, carburetion tuning.
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems.
Carburetor Synchronization:
Detailed instructions on balancing the dual Bing carburetors for optimal performance and fuel economy.
Wheel Bearing Service:
Procedure for inspecting, repacking, and replacing wheel bearings.
Clutch Adjustment And Replacement:
Guidance on adjusting clutch cable play and replacing clutch components.
Depth Level:
Comprehensive (from basic maintenance to full engine and transmission rebuilds)
Diagnostic Capabilities:
Extensive troubleshooting trees for electrical and mechanical issues, aiding in precise fault diagnosis.
Digital Quality:
High-resolution scans of original factory manual pages, searchable text often included.
Searchability:
Optimized for digital use with keywords and internal links for quick navigation.
Print Quality:
Professional printing on durable paper (if applicable)
Binding:
Spiral-bound or Perfect-bound for lay-flat use in a workshop environment (if applicable)
Paper:
Durable, oil-resistant paper (if printed)
Type:
Air-cooled, four-stroke, flat-twin (boxer) engine
Displacement:
979 cc (approx.)
Bore X Stroke:
90.0 mm x 76.0 mm (approx.)
Compression Ratio:
Typically 8.2:1 or 9.5:1 depending on variant
Power Output:
Approximately 65-70 hp (48-52 kW) at 6500 rpm (varies by specific R100 model)
Torque:
Approximately 75-80 Nm (55-59 lb-ft) at 5000 rpm (varies by specific R100 model)
Carburetor Type:
Dual Bing constant velocity carburetors (e.g., 32mm or 40mm depending on model)
Fuel Grade:
Unleaded gasoline, minimum 91 RON (87 AKI)
Type:
Electronic Ignition (Breakerless)
Engine Internal Components
Valve Train:
Overhead valve (OHV), pushrod actuated
Cooling System:
Air cooling with prominent finning on cylinders and cylinder heads.
Vintage Safety Standards:
Meets safety standards applicable to motorcycles of the early 1980s.
Braking System:
Dual disc front brakes, single disc rear brake (on most models); Drum brake on some earlier/simpler models.
Frame Construction:
Steel tubular frame providing robust support.
Era Appropriate Features:
Basic analog instrumentation (speedometer, tachometer, odometer, warning lights); no electronic infotainment systems.
Safety Systems:
ABS not available; focus on robust mechanical design and responsive braking.
Oil Change:
Every 5,000 - 7,500 km (3,000 - 5,000 miles) or annually.
Valve Adjustment:
Every 10,000 - 15,000 km (6,000 - 9,000 miles).
Spark Plug Replacement:
Every 15,000 - 20,000 km (9,000 - 12,000 miles).
Engine Oil:
SAE 20W-50 or SAE 15W-40 (depending on climate); API SG or higher recommended.
Brake Fluid:
DOT 3 or DOT 4 hydraulic fluid (check manual for specific recommendation).
Engine Oil Capacity:
Approx. 2.5 liters (2.6 US qt) with filter change.
Common Wear Items:
Pushrod tube seals, timing chain tensioner, clutch wear, fuel line degradation, starter motor brushes.
Electrical Gremlins:
Intermittent connections, aging wiring insulation, regulator/rectifier issues.
Fuel Delivery:
Diaphragm failure in Bing carburetors, fuel filter clogging.
Tire Pressures Front:
Typically 2.2 - 2.5 bar (32-36 psi) (check manual for specific load/speed)
Tire Pressures Rear:
Typically 2.5 - 2.8 bar (36-40 psi) (check manual for specific load/speed)
Ignition Timing:
Advance at idle: Approx. 5-8 degrees Before Top Dead Center (BTDC) (typically set using timing marks and strobe light).
Spark Plug Gap:
Typically 0.6 - 0.7 mm (0.024 - 0.028 inches).
Bmw Motorrad Legacy:
BMW Motorrad's lineage of reliable and capable touring and sport-touring motorcycles.
R Series Development:
Evolution of the legendary 'Airhead' boxer twins, representing a peak in their development for the era.
Manufacturing Era:
Produced from the late 1970s through the early 1990s, with the 1982 model being a significant iteration.
