2 stroke quick tip for rpm issues at full throttle. Carbon build up on string trimmers etc

Here is a quick tip to keep your screens clean.
Use the correct oil to fuel mixture to prevent buildup on the spark arrestor screen. This screen should be checked periodically to make sure it is not caked in carbon buildup.
Take the screen cover off and clean the screen with Brake cleaner or a good degreaser. Scrub with a wire brush. Rinse thoroughly before reinstalling.
Usually this cleans it right up. Re-install and try full throttle again. This can sometime restore full throttle capability!