How much oil for a 1989 ninja 600r?

For a 1989 Kawasaki Ninja 600R, the engine typically requires about 3.5 quarts (approximately 3.3 liters) of oil when changing the oil and filter. It's important to use the recommended oil type, which is generally 10W-40 or similar, depending on your climate. Always check the owner's manual for specific details and recommendations to ensure optimal performance.