Be careful not to lean out the YS110 too much as you run the risk of blowing the seals and its NOT covered under warranty!!
Not to mention throwing the prop and the spinner, along with the pre detonation that ruins the thrust washer. ( don't askme how I know )
If you hear a high pitched tinging noise it's too lean !!
Just follow Troy's instructions and then leave it alone once it's set!!
Eddie