🏷️ Basic Information

Make:

BMW

Model:

R850R

Year:

2001

Product Name:

BMW R850 R850R 2001 Full Service Repair Manual

👋 Introduction

Motorcycle Segment:

Sport Touring / Roadster

Target Audience:

Owners seeking to perform comprehensive maintenance and repairs themselves, independent repair shops, and serious enthusiasts.

Competitive Set:

Rival models from brands like Moto Guzzi, Ducati, and other BMW boxer-twin models of similar displacement and purpose.

Vehicle Highlights:

Torquey boxer-twin engine, characteristic BMW handling, shaft drive, and touring capability.

Manual Value Proposition:

Empowers owners with the knowledge to maintain, diagnose, and repair their R850R, potentially saving significant costs and extending the motorcycle's lifespan.

📋 Manual Details

Manual Type:

Full Service Repair Manual

Language:

English

Format:

Digital (assumed, based on common sales model for these types of manuals)

Estimated Page Count:

500+ pages (typical for a comprehensive BMW motorcycle service manual of this era)

📖 Manual Coverage

Engine Mechanical:

Comprehensive overhaul, including cylinder head, pistons, crankshaft, connecting rods, timing components (chain, tensioners, guides), valve train (valves, springs, seals, rockers, lifters), oil pump, lubrication system.

Fuel System:

Fuel injection system (throttle bodies, injectors, fuel pressure regulator, fuel pump, sensors), fuel tank, lines, and evaporative emissions control.

Ignition System:

Ignition coils, spark plugs, ECU control, ignition timing, and troubleshooting of ignition-related faults.

Transmission Manual:

Gearbox disassembly, reassembly, shift mechanism, clutch operation, and lubrication.

Drivetrain Final Drive:

Driveshaft, universal joints, rear differential (if applicable to R850R), and spline lubrication.

Brakes:

Brake system components (master cylinders, calipers, pads, discs, hoses, ABS system), bleeding procedures, and troubleshooting.

Suspension Front:

Telescopic fork components, seals, oil replacement, springs, damping adjustments, and steering head bearings.

Suspension Rear:

Monolever swingarm, shock absorber, linkage (if applicable), spring preload, damping adjustments, and wheel bearing maintenance.

Electrical System:

Wiring diagrams, battery, charging system (alternator, regulator), starter motor, lighting, horn, instrumentation, and ECU functions.

Chassis Frame:

Frame inspection, repair, and related component mounting.

Bodywork:

Fairings, fuel tank, seat, fenders, and accessory mounting.

Scheduled Maintenance:

Detailed procedures for all scheduled maintenance tasks as per BMW's recommendations, including oil changes, filter replacements, spark plug checks, valve adjustments, and fluid checks.

Troubleshooting Diagnostics:

Systematic diagnostic procedures for common and uncommon faults, including symptom analysis, component testing, and fault code interpretation (if applicable).

Component Removal Installation:

Step-by-step instructions for removing, servicing, and reinstalling virtually every component of the motorcycle.

Rebuild Reconditioning:

Detailed instructions for complete engine rebuilds, gearbox overhauls, and suspension component reconditioning.

Torque Specifications:

Comprehensive list of torque values for all critical fasteners, ensuring proper assembly and preventing damage.

Wiring Diagrams:

Clear and detailed electrical schematics for all model variations, aiding in troubleshooting electrical issues.

Depth Level:

Expert/Professional Level

Detail Of Procedures:

Includes step-by-step instructions with accompanying diagrams and illustrations for complex tasks such as engine disassembly, transmission rebuilds, and electrical system diagnostics.

Diagnostic Capabilities:

Covers advanced diagnostic techniques, often requiring specialized tools (though specific tool requirements are generally not listed, the procedures imply their use).

📊 Manual Specifications

File Format:

PDF

Searchability:

Searchable text content for quick information retrieval

Print Quality:

High-resolution graphics and clear text for easy readability and printing

Binding Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

Four-stroke, air-cooled, boxer-twin (flat-twin)

Displacement:

848 cc (51.7 cubic inches)

Bore X Stroke:

90.0 mm x 66.0 mm

Compression Ratio:

10.3:1

Valve Train:

Two valves per cylinder, pushrod-actuated with rocker arms.

Horsepower:

70 hp @ 7,250 rpm (approximate)

Torque:

75 Nm (55 lb-ft) @ 5,500 rpm (approximate)

Fuel Delivery:

Electronic Fuel Injection (EFI) with individual throttle bodies

Fuel Type:

Unleaded gasoline (91 RON or higher recommended)

Fuel Tank Capacity:

25 liters (6.6 US gallons), including a reserve of approx. 4 liters

🔧 Transmission

Transmission Type:

Constant mesh 5-speed gearbox

Clutch:

Single dry plate, hydraulically operated

Final Drive:

Shaft drive to rear wheel

📐 Dimensions

Length:

Approx. 2,150 mm (84.6 inches)

Width:

Approx. 850 mm (33.5 inches) at handlebars

Height:

Approx. 1,350 mm (53.1 inches) at windscreen

Dry Weight:

Approx. 219 kg (483 lbs)

Wet Weight:

Approx. 230 kg (507 lbs) (fully fueled, with rider and gear estimates)

Gross Vehicle Weight Rating:

Not explicitly stated, but typically around 450-480 kg for such motorcycles

🛡️ Safety Features

Crash Test Ratings:

N/A for motorcycles; safety is primarily assessed through design and rider aids.

ABS:

Optional BMW Motorrad ABS (Anti-lock Braking System)

Braking System:

Hydraulically operated dual disc front brakes, single disc rear brake.

Lighting:

Halogen headlamp, LED taillight/brake light, turn signals.

Ergonomics:

Upright riding position designed for comfort and control.

💡 Technology Features

Instrumentation:

Analog speedometer and tachometer, LCD display for odometer, trip meter, clock, and warning lights. Often includes an analog fuel gauge.

ABS System:

Optional, two-channel ABS system designed to prevent wheel lock-up under braking.

Diagnostics Port:

On-board diagnostic capabilities, often accessed via a specific connector requiring a BMW diagnostic tool or adapter.

🔧 Maintenance

Oil Change Interval:

Every 10,000 km (6,200 miles) or annually, whichever comes first.

Valve Adjustment Interval:

Every 20,000 km (12,500 miles) or as indicated by engine noise.

Spark Plug Replacement:

Typically every 20,000 km (12,500 miles) or as needed based on inspection.

Engine Oil Type:

SAE 15W-40 or 20W-50 API SG or higher (consult manual for specific BMW recommendations).

Engine Oil Capacity:

Approx. 2.7 liters (2.8 US quarts) with filter change.

Transmission Oil Type:

SAE 75W-90 API GL-5 (Hypoid gear oil).

Final Drive Oil Type:

SAE 75W-90 API GL-5 (Hypoid gear oil).

Brake Fluid Type:

DOT 4 brake fluid.

Coolant Type:

Not applicable (air-cooled engine).

Common Wear Items:

Clutch slave cylinder seals, alternator brushes, swingarm pivot bearings, steering head bearings, ABS sensor rings.

Electrical Gremlins:

Intermittent electrical issues can occur with age, often related to wiring harness integrity or connector corrosion.

Fuel System Maintenance:

Regular cleaning of throttle bodies and checking for injector blockages can prevent performance degradation.

📚 Vehicle History

Manufacturer:

Bayerische Motoren Werke AG (BMW), established in 1916.

Motorcycle Division:

BMW Motorrad, a division with a long history of producing innovative and reliable motorcycles, particularly known for its boxer-twin engines.

R Series Legacy:

The R850R is part of BMW's long-standing tradition of boxer-twin motorcycles, evolving from earlier models like the R90S, R100 series, and R1100 series.

R850R Introduction:

Introduced as a more accessible and slightly less powerful alternative to the R1100R, offering a blend of performance, comfort, and BMW's characteristic engineering.

Production Period:

The R850R was produced from 1996 to 2007, with the 2001 model representing a mid-cycle iteration.

Manufacturing Location:

Germany (typically Berlin-Spandau for BMW motorcycles)

🏆 Awards & Recognition

General Reputation:

Generally well-regarded for its robust engineering, comfort, and long-distance touring capability. Often praised for its unique character and handling.

Owner Satisfaction:

Consistently high owner satisfaction ratings for reliability and build quality, provided proper maintenance is performed.

Emissions Compliance:

Meets relevant emissions standards for its production year, with details on catalytic converter and evaporative emission controls covered in the manual.