How do you change the oil in a 2007 Suzuki boulevard c90?

To change the oil in a 2007 Suzuki Boulevard C90, start by warming up the engine for a few minutes to thin the oil, then turn it off and let it cool briefly. Place a drain pan under the oil pan, remove the oil drain bolt, and allow the old oil to fully drain out. Replace the drain bolt, remove the old oil filter using an oil filter wrench, and install a new filter. Finally, refill the engine with the appropriate grade of oil through the oil filler cap, checking the level with the dipstick to ensure it's within the recommended range.