How many quartz oil does a 2005 ninja 250?

The 2005 Kawasaki Ninja 250 requires approximately 2.1 quarts (or about 2 liters) of oil when performing an oil change with a filter replacement. If you're just changing the oil without replacing the filter, it typically needs around 1.8 quarts (or about 1.7 liters). Always check the owner's manual for the most accurate specifications and recommendations.