Trimmer Primer and Hose Assembly 791-683974B

This is a primer and hose assembly, and it is used on various lawn equipment. The assembly comes with two parts. The first is the hose which is almost 5 inches long, and less than a 1/4 inch thick. The second part is the primer bulb or primer pump, and that is 2 inches long, and 1 inch wide, with a round bulb head. Together, the primer and hose assembly fill the carburetor with fuel to give your machine a quicker start. After time, your hose will crack and your primer will lose elasticity. Both will have to be replaced when this happens. Before starting this repair make sure to drain the fuel from the tank, and remove the spark plug.