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Manual Coverage
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Systems Covered
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Engine Mechanical:
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Engine disassembly, assembly, inspection, and repair for the Boxer twin engine.
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Fuel System:
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Fuel injection system (Bosch Motronic), fuel pump, injectors, fuel lines, and tank maintenance.
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Ignition System:
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Ignition control unit, spark plugs, ignition coils, and related components.
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Electrical System:
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Comprehensive coverage including battery, charging system (alternator, regulator), starter motor, lighting, and accessory circuits.
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Transmission Drivetrain:
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Gearbox (5-speed), clutch operation and adjustment, final drive, driveshaft, and universal joints.
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Suspension Steering:
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Front Telelever suspension, rear Paralever swingarm, shock absorbers, fork seals, steering head bearings, and linkage.
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Brakes:
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ABS II system (where applicable), brake fluid replacement, caliper maintenance, pad replacement, and disc inspection.
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Bodywork Frame:
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Fairing components, seat, fuel tank, chassis inspection, and minor bodywork repair.
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Wheels Tires:
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Wheel bearing service, tire replacement, and balancing.
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Procedures Included
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Routine Maintenance:
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Oil changes, filter replacement, spark plug inspection/replacement, air filter service, fluid level checks, and lubrication.
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Troubleshooting:
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Diagnostic procedures for common performance issues, electrical faults, and mechanical problems.
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Engine Rebuild:
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Complete engine overhaul procedures, including piston and cylinder inspection/replacement, valve adjustment, and seal replacement.
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Transmission Repair:
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Gearbox servicing, clutch replacement, and final drive maintenance.
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Electrical Diagnostics:
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Step-by-step electrical troubleshooting, including wiring diagram interpretation and component testing.
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Suspension Adjustment:
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Adjustment procedures for front and rear suspension components, including spring preload and damping where applicable.
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Brake System Service:
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Brake bleeding, pad and fluid replacement, and ABS system diagnostics.
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Technical Depth
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Depth:
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Detailed step-by-step instructions, critical notes, cautions, and warnings for each procedure.
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Illustrations:
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Hundreds of photos, drawings, and detailed illustrations, including enlarged insets for specific component examination.
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Documentation Style:
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Clear, numbered instructions and figure references for easy navigation and procedure following.
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Engine Specifications
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Primary Engine
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Engine Type:
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1130cc (1130 cc) air-cooled, four-stroke, flat-twin (Boxer) engine.
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Bore X Stroke:
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99 mm x 73.5 mm (typical for R1150 series).
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Compression Ratio:
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10.7:1 (typical for R1150 series).
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Performance
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Horsepower:
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Approximately 85 hp @ 6,750 rpm (varies slightly by model and specific tuning).
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Torque:
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Approximately 70 lb-ft (95 Nm) @ 5,250 rpm (varies slightly).
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Fuel System
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Fuel Delivery:
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Electronic Fuel Injection (EFI) - Bosch Motronic MA 2.4 or similar.
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Fuel Type:
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Unleaded gasoline, octane rating 91 (RON + MON)/2 or higher.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Every 10,000 km (6,200 miles) or annually, whichever comes first.
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Valve Adjustment Interval:
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Every 20,000 km (12,500 miles).
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Fluid Specifications
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Engine Oil Grade:
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SAE 20W-50 motorcycle specific, API SG or higher (check manual for exact BMW approval like BMW Motoröl HD-X).
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Transmission Oil Grade:
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SAE 75W-90 API GL-5 gear oil.
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Final Drive Oil Grade:
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SAE 80W-90 API GL-5 gear oil (often a different viscosity than gearbox).
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Brake Fluid Type:
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DOT 4 (preferred) or DOT 3 brake fluid.
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Known Issues
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Common Wear Items:
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Clutch slave cylinder seals, fuel pump relay, alternator brushes, fuel injector seals, and steering head bearings.
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Potential Failures:
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Telelever pivot bearings, rear shock absorber (especially on RT models with electronic suspension).
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