How do you change the coolant on a 2004 Kawasaki Vulcan 1500 classic?

To change the coolant on a 2004 Kawasaki Vulcan 1500 Classic, first ensure the engine is cool, then place a drain pan under the water pump and remove the drain plug to let the old coolant flow out. Next, remove the radiator cap and refill the system with a mix of the appropriate coolant and distilled water, typically in a 50:50 ratio. After refilling, start the engine and let it run for a few minutes to circulate the new coolant, then check for any leaks and ensure the coolant level is correct before replacing the cap. Finally, dispose of the old coolant properly according to local regulations.