Yep, just turn it upside down and let everything drain out. You might wait overnight and refill it with gas so the carb isn't flooded from being upside down. I had a nice one given to me from an estate this week and I used engine starting fluid to get it to "pop" and it finally decided to run after a few fails. Now I'm running it with Seafoam fuel treatment to clean up the carb. Those mulching mowers .....not sure I like em....I like to see grass fly. Mine is a lime green Lawn Boy.