BMW F 800 S 2009 Rider's Manual
![BMW F 800 S 2009 Motorcycle manual cover](/images/aSgUUlfGnuLHFaGpDYYLtfVm/thumbs/thumb175x175.webp)
To check the oil level, place the motorcycle on a level surface and ensure it is upright. Locate the oil sight glass on the right side of the engine. The oil level should be between the minimum and maximum marks.
Use a high-quality ethylene glycol-based antifreeze with corrosion inhibitors that is compatible with aluminum engines. Check the owner's manual for specific recommendations.
The air filter should be inspected every 6,000 miles (10,000 km) and replaced every 12,000 miles (20,000 km) or sooner if riding in dusty conditions.
The recommended tire pressure is 36 psi (2.5 bar) for the front tire and 42 psi (2.9 bar) for the rear tire. Always check the pressure when the tires are cold.
First, check the battery condition and connections. Ensure the kill switch is in the run position and the clutch lever is pulled in. If the engine still doesn't start, inspect the fuses and check for any error codes.
If the engine overheats, stop the motorcycle safely and turn off the engine. Allow it to cool, then check the coolant level and for any leaks. If the problem persists, have the cooling system inspected by a professional.
To adjust the chain tension, place the motorcycle on the center stand. Loosen the rear axle nut, then use the adjusters on each side of the swingarm to set the correct tension, ensuring the chain has 20-30 mm of slack. Tighten the axle nut securely.
Regular maintenance includes oil and filter changes, brake system inspection, chain lubrication and adjustment, tire pressure checks, and coolant level checks. Refer to the owner's manual for a detailed maintenance schedule.
To improve fuel efficiency, maintain proper tire pressure, use the recommended oil, avoid aggressive acceleration, and ensure regular maintenance is performed. Riding at a steady speed and minimizing idling can also help.
The recommended spark plug is the NGK DCPR8EKC. Ensure the spark plug gap is set to the manufacturer's specifications for optimal performance.