Pretty much. Just don't go too lean to try and help clean it up.
Personally I like to see a brown like a maple syrup color on the porcelain.
The metal sleeve will tell you idle, so you can get both set right.

If you notice in the picture there are little brown spots on the porcelain, and a powdery looking coat. That means it is burning the oil, and it is on the cusp of being lean on top. Although without knowing the brand of oil that is kind of speculative (no pun intended).

The metal sleeve is dry and light black, that is a good low end setting. If this engine is in a cowl it may just need a little more air flow over the cylinder, otherwise I'd just touch the top end.

Scott