#Model-5mh Type-Standard. Mercury FourStroke outboards are made to unlock the inaccessible. To make light work of long journeys. The 5hp FourStroke outboards empower you to enjoy the water on your terms and reach places you wouldn't dare venture with other engines. They're reliable, compact, lightweight, easy to install and simple to operate, while still delivering quick acceleration and impressive speed. The only thing missing is a destination.. Convenient Maintenance. We made maintenance easie