Sounds OK. Since you are not used to YS engines, you will find that they typically do not have much needle range. From full lean to very rich is 1/4 turn on the needle. One click is usually 200 to 300 rpm. Your engine maybe completely normal. They also do not like being set very rich. One or two clicks off the peak is usually perfect.

You'll get used to it. Enjoy the horsepower, and if you have any other questions, let me know.

Good Flying!