How to Inspect and Adjust Small Engine Valve Clearance

In this video, we will show you how to inspect and adjust the clearance on your intake and exhaust valves on your small engine. This is also known as valve gap or valve lash. We are doing this on a Raven R420 engine, but this technique applies to many other small lawn & garden engines, such as the Honda GX90, Locin, Lifan, and Harbor Freight Predator.