Where is the oil drain plug on a Yamaha 115 hp outboard?

The oil drain plug on a Yamaha 115 hp outboard is typically located on the lower unit of the engine, near the base of the powerhead. It's often a hexagonal or square-shaped plug that can be found on the side or bottom of the engine casing. For precise location, it's best to consult the owner's manual for your specific model, as placement may vary slightly between years and configurations. Always ensure the engine is off and cool before attempting to change the oil.