How To Clean Ryobi Weed Wacker. Grasp the bump knob on the center of the cutting head and turn it counterclockwise to loosen it. The first thing you have to do is place the trimmer into a flat strong surface for removing the head properly.
Pour a small amount of two-cycle engine oil into the package with the air filter. A string trimmer is a handy tool but you have to maintain it if you want it to work its best. Need help replacing the Bump Head Knob Part 791-181468B in your Ryobi Trimmer.
Pour a small amount of two-cycle engine oil into the package with the air filter.
Advertisement Video of the Day Step 1 Locate the idle-adjustment screw on the Ryobi trimmer. Its not too difficult to do and can be really handy when you want to make sure your machine is working at optimal capability. Lowes home improvement expert Mike Kraft gives helpful tips for string trimmer maintenance. RYOBI specializes in making pro-featured power tools and outdoor products truly affordable.
