Engine Mechanics:
Detailed disassembly, assembly, inspection, and repair procedures for the Boxer twin-cylinder engine, including valve adjustments, piston and ring replacement, crankshaft and connecting rod service, and cylinder head reconditioning.
Fuel System:
Comprehensive coverage of the Bosch Motronic fuel injection system, including fuel pump testing, injector servicing, throttle body adjustments, and sensor diagnostics.
Ignition System:
Information on the electronic ignition system, including coil testing, spark plug specifications, and troubleshooting ignition faults.
Transmission And Drivetrain:
Step-by-step instructions for servicing the 5-speed transmission, clutch assembly (including dry clutch operation), driveshaft, and final drive unit.
Suspension:
Detailed procedures for fork disassembly, seal replacement, oil changes, and shock absorber servicing. Includes adjustments for pre-load and damping where applicable.
Brakes:
Comprehensive guide to the BMW Integral ABS system (if equipped), including brake caliper overhaul, bleeding procedures, master cylinder service, and ABS sensor diagnostics. Covers both front and rear braking systems.
Electrical System:
Detailed wiring diagrams, component testing procedures for starter motor, alternator, battery, lighting, and instrument cluster. Includes troubleshooting common electrical gremlins.
Body And Frame:
Procedures for fairing removal and installation, seat servicing, fuel tank maintenance, and chassis inspection. Includes specific notes for RT and RS variants.
Cooling System:
Details on the oil cooler and oil circulation for engine cooling.
Exhaust System:
Information on exhaust component removal, installation, and inspection.
Wheels And Tires:
Specifications for tire sizes, recommended pressures, and wheel bearing maintenance.
Routine Maintenance:
Covers oil changes, filter replacements, spark plug checks, fluid level checks, and lubrication points with recommended intervals and specifications.
Troubleshooting:
Systematic diagnostic procedures for common issues related to engine performance, starting problems, electrical faults, and braking system malfunctions, often with flowcharts or symptom-based guides.
Component Overhaul:
Detailed step-by-step guides for disassembling, cleaning, inspecting, and reassembling major vehicle components like the engine, transmission, and suspension.
Adjustments And Settings:
Precise instructions for throttle cable adjustment, clutch lever free play, idle speed settings, and suspension pre-load and damping adjustments.
Special Tool Usage:
References to specific BMW special tools required for certain procedures, often accompanied by illustrations showing their application.
Tightening Torques:
Provides specific torque values for all critical fasteners and threaded connections.
Safety Precautions:
Extensive safety warnings, cautions, and notes (DANGER, CAUTION, NOTE) integrated into repair procedures.
Diagnostic Capabilities:
While not a full electronic diagnostic tool, it provides in-depth understanding of sensor functions and diagnostic procedures for mechanical and electrical systems.
Rebuild Procedures:
Provides sufficient detail for complete engine and transmission rebuilds, including torque specifications, clearance measurements, and part clearances.
Pictorial Guidance:
Extensive use of diagrams, exploded views, drawings, and photographs to visually guide users through complex procedures.
Specification Lists:
Includes detailed lists of specifications, tolerances, and wear limits for various components.
Construction And Function:
Includes explanations of how systems and components work, crucial for understanding troubleshooting and repair.
Engine Type:
Air/oil-cooled, four-stroke, flat twin (Boxer) engine
Bore X Stroke:
99 mm x 70.5 mm
Compression Ratio:
10.7:1
Horsepower:
90 hp (67 kW) @ 6750 rpm (approximate)
Torque:
98 Nm (72 lb-ft) @ 5250 rpm (approximate)
Fuel Delivery:
Bosch Motronic MA 2.2 fuel injection
Fuel Type:
Unleaded gasoline, minimum 95 octane (RON)
Oil Capacity:
Approx. 4.0 liters (4.2 US quarts) with filter change
Recommended Oil:
SAE 15W-50 or 20W-50 API SG or higher, JASO MA certified motorcycle oil
Cylinder Arrangement:
Horizontally opposed twin-cylinder (Boxer)
Oil Change Interval:
Every 10,000 km (6,000 miles) or annually, whichever comes first
Valve Check Interval:
Every 20,000 km (12,000 miles)
Spark Plug Replacement:
Every 20,000 km (12,000 miles)
Transmission Oil:
SAE 75W-90 API GL-5 gear oil
Final Drive Oil:
SAE 75W-90 API GL-5 gear oil
Coolant Type:
N/A (Engine is air/oil-cooled, no traditional coolant system)
Clutch Actuation:
Potential for leaks in the clutch slave cylinder, requiring rebuild or replacement.
Fuel Pump Reliability:
Occasional reports of fuel pump failures over time, especially with age.
Starter Motor Brushes:
Wear on starter motor brushes can lead to starting issues.
Alternator Output:
Degradation of alternator output with high mileage can occur.
