There is. Either by buying the tool for it on Ebay or by making your own (use automotive type 22 gauge wire connectors). Tap the wire connectors down over the heads of the L or H screw. The plastic will expand and then you can grip them and adjust them.

Hi okiejoe100,

The best option is to take it to a repair shop and have them adjust it.
There are a couple of reasons I say this.

First, any carb from about the last 10 years will need special tools to make any adjustments due to EPA laws.

Second, modern 2-cycle engines are built to very tight tolerances and use very little oil in the fuel in order to burn clean enough for the EPA requirements. This makes the engines very sensitive to being adjusted lean. Running the engine for even a few seconds set too lean can cause serious engine damage. You really need a tachometer to properly adjust modern 2-cycle engines.

I hope this helps,

-UtahAV
-Mark