Segment:
Sport Touring / Commuter Motorcycle
Target Audience:
Riders seeking a reliable, comfortable, and versatile motorcycle for daily commuting and light touring, with a premium feel associated with the BMW brand.
Competitors:
Honda VFR800, Yamaha FZ6, Ducati ST2, Suzuki SV650S (depending on specific market positioning and rider priorities).
Design:
Distinctive single-sided swingarm, under-seat exhaust, aerodynamic fairing, comfortable riding posture.
Performance:
Torquey engine providing good low-to-mid-range power, suitable for urban riding and open roads.
Practicality:
Optional luggage solutions, user-friendly controls, relatively low maintenance requirements for a BMW.
Engine:
Engine overhaul, cylinder head, pistons, crankshaft, lubrication system, cooling system, fuel injection system, exhaust system
Transmission:
Gearbox, clutch, final drive, chain maintenance
Chassis:
Frame, suspension (front forks, rear shock absorber), steering, wheels, tires
Brakes:
Front and rear brake systems, hydraulic lines, master cylinders, calipers, brake discs
Electrical:
Battery, charging system (alternator, regulator), ignition system, lighting, starter motor, instrumentation, wiring diagrams, ECU (Engine Control Unit)
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel injection (throttle body, injectors, sensors)
Exhaust System:
Exhaust manifold, catalytic converter, mufflers
Bodywork:
Fairings, seat, fuel tank cover, body panels, fasteners
Maintenance:
Oil change, filter replacement, chain adjustment, brake fluid flush, coolant replacement, spark plug replacement, air filter cleaning/replacement, battery maintenance
Troubleshooting:
Diagnostic codes, common fault finding, electrical system diagnostics, engine performance issues
Repair:
Engine rebuild, transmission repair, suspension overhaul, brake caliper replacement, electrical component repair, body panel repair
Disassembly Assembly:
Complete step-by-step instructions for component removal and installation
Depth:
Comprehensive (covers routine maintenance to complete engine and chassis rebuilds)
Diagnostics:
Detailed diagnostic procedures, symptom-based troubleshooting, component testing
Specifications:
Torque specifications, clearances, tolerances, fluid capacities, electrical resistance values
Type:
Four-stroke, parallel-twin
Bore X Stroke:
100 mm x 83 mm
Compression Ratio:
10.1:1
Valvetrain:
DOHC, 4 valves per cylinder
Cooling System:
Liquid-cooled
Power Output Hp:
50 hp (approx. at 6500 rpm)
Torque Nm:
63 Nm (approx. at 5000 rpm)
Engine Management:
Electronic Fuel Injection (EFI) with Motronic MA 2.4
Fuel Type:
Unleaded gasoline (95 RON recommended)
Fuel Tank Capacity:
17 Liters (4.5 US gallons)
Crash Test Results:
Not applicable to motorcycles in the same way as cars. Focus is on rider protection and vehicle stability.
Braking:
Disc brakes front and rear. Optional ABS available on some models.
Suspension:
Stable chassis and well-tuned suspension contribute to predictable handling.
Lighting:
Halogen headlamp, integrated turn signals.
Ergonomics:
Designed for rider comfort and control.
Instrumentation:
Analog speedometer and tachometer, LCD display for odometer, trip meter, clock, and basic warning lights. Often features a fuel gauge.
ABS:
Optional Anti-lock Braking System (ABS) available on some configurations, enhancing safety.
Diagnostics:
Diagnostic port for connection to BMW's diagnostic tools (e.g., GT1, DIS) for advanced troubleshooting and ECU programming.
Oil Change:
Every 10,000 km (6,000 miles) or annually, whichever comes first.
Oil Filter Replacement:
At every oil change (10,000 km / 6,000 miles).
Air Filter Maintenance:
Inspect every 10,000 km (6,000 miles), clean or replace as needed.
Spark Plug Replacement:
Every 20,000 km (12,000 miles).
Coolant Replacement:
Every 2 years or 30,000 km (18,000 miles).
Brake Fluid Flush:
Every 2 years.
Valve Clearance Check:
Every 20,000 km (12,000 miles).
Engine Oil:
SAE 10W-40 or 15W-50, API SG or higher, JASO MA compliant (synthetic or semi-synthetic recommended).
Engine Oil Capacity:
Approx. 2.3 Liters (2.4 US quarts) with filter change.
Coolant:
BMW approved ethylene glycol based coolant with corrosion inhibitors (50% mix with distilled water).
Clutch Fluid:
DOT 4 (shared with brake system if hydraulic)
Fuel Pump:
Early models could experience premature fuel pump failure, often indicated by intermittent starting or poor running.
Regulator Rectifier:
Overheating or failure of the regulator/rectifier can lead to battery charging issues.
Cam Chain Tensioner:
While not as prevalent as on some single-cylinder BMWs, proper tensioner function should be checked.
ABS System:
If equipped with ABS, sensor or modulator issues can occur, requiring specialized diagnosis.
Bmw Motorrad:
BMW Motorrad has a long and storied history dating back to the 1920s, known for engineering excellence, innovation, and robust motorcycles.
F Series Heritage:
The F650 CS is part of BMW's F-series, which initially featured Rotax-engineered single-cylinder engines before moving to parallel twins. The CS ('City/Street') variant offered a more modern, stylish take on the F650 platform.
Manufacturing:
Produced in collaboration with Aprilia in Italy by the then-owner of the BMW motorcycle brand, BMW Italia, for certain markets.
Production Run:
2001-2005 (with this specific engine configuration).
Industry Reception:
The F650 CS was generally well-received for its unique styling, comfortable ride, and BMW's reputation for quality, though it occupied a niche market.
Reliability Reputation:
Generally good, though like any motorcycle of this era, adherence to maintenance schedules is crucial. The parallel-twin engine proved more robust than some earlier single-cylinder F-series.
Emissions:
Meets relevant European and US emissions standards for its production years.
