Market Segment:
Lightweight, versatile motorcycle appealing to urban riders and those seeking a practical, stylish commuter
Key Competitors:
Ducati Monster 620, Kawasaki ER-6f, Honda CB500F (era dependent)
Design Philosophy:
Combines BMW's engineering prowess with a more accessible, urban-friendly design. Distinctive single-sided swingarm.
Unique Selling Points:
Low seat height, manageable power delivery, distinctive styling, BMW build quality.
Engine:
Engine overhaul, tuning, fuel system, ignition system, lubrication, cooling system, emission control
Transmission:
Gearbox removal and installation, clutch, shifting mechanism
Drivetrain:
Chain drive system, sprockets, wheel hub
Brakes:
Hydraulic system, brake fluid, caliper service, pad replacement, disc inspection, ABS (if equipped)
Suspension:
Front fork service (oil change, seal replacement), rear shock absorber, swingarm, bearings
Electrical System:
Wiring diagrams, battery, charging system (alternator, regulator), starter motor, lighting, ignition, fuel injection control unit (ECU)
Fuel System:
Fuel tank, fuel pump, fuel injectors, fuel pressure regulator
Chassis And Body:
Frame inspection, body panels, seat, handlebars, footpegs, fairings
Wheels And Tires:
Tire inspection and replacement, wheel balancing, spoke tensioning (if applicable), wheel bearings
Cooling System:
Radiator, coolant, water pump, thermostat
Routine Maintenance:
Oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement, brake fluid flush
Troubleshooting:
Diagnostic procedures, fault finding for common issues, error code interpretation (if applicable)
Engine Repair:
Top-end rebuild, piston and cylinder inspection/replacement, valve clearance adjustment, camshaft inspection
Transmission Repair:
Gearbox disassembly, component inspection, reassembly
Electrical Diagnostics:
Wiring harness testing, component testing (sensors, actuators), charging system diagnosis
Suspension Rebuild:
Fork seal replacement, fork oil change, rear shock absorber service/replacement
Brake System Service:
Bleeding procedures, caliper rebuilding, hose replacement
Bodywork And Trim:
Fairing removal and installation, panel alignment, seat removal
Depth Of Coverage:
Detailed step-by-step repair procedures, torque specifications, wiring diagrams, diagnostic flowcharts, component removal and installation guides
Diagnostic Capabilities:
Covers basic to advanced diagnostics for engine management, electrical systems, and mechanical components
Rebuild Procedures:
Includes procedures for complete engine and transmission overhauls
Engine Type:
Liquid-cooled, four-stroke, parallel-twin
Displacement:
652 cc (652 cubic centimeters)
Bore X Stroke:
100 mm x 83 mm
Compression Ratio:
11.0:1
Valve Train:
DOHC, 4 valves per cylinder
Horsepower:
50 hp (37 kW) @ 6,750 rpm
Torque:
44 lb-ft (60 Nm) @ 5,000 rpm
Fuel Delivery:
Electronic fuel injection (Bosch Motronic MA 2.4)
Fuel Type:
Unleaded gasoline, 91 octane (RON+MON)/2 or higher
Fuel Tank Capacity:
17 liters (4.5 US gal)
Oil Type:
API SG/SH or JASO MA certified motorcycle oil, SAE 10W-40 recommended
Oil Capacity With Filter:
Approx. 2.2 liters (2.3 US qt)
Oil Change Interval:
Every 10,000 km (6,000 miles) or annually
Oil Filter Replacement:
At every oil change
Air Filter Cleaning:
Every 10,000 km (6,000 miles)
Spark Plug Replacement:
Every 20,000 km (12,000 miles)
Valve Clearance Check:
Every 20,000 km (12,000 miles)
Chain Adjustment:
Regularly, and check slack every 5,000 km (3,000 miles)
Coolant:
BMW Motorrad Coolant (or equivalent ethylene glycol based coolant with corrosion inhibitors), mixed 50/50 with distilled water
Common Wear Items:
Clutch wear, fork seals, chain and sprockets, rear wheel bearings.
Electrical Quirks:
Occasional issues with stator or voltage regulator, as with many BMW models of this era. Pay attention to battery health.
Fuel System Considerations:
Keep fuel system clean; potential for injector fouling if poor quality fuel is used.
