Regarding tuning, it does take time, knowledge and experience. At the track it can get frustrating with all the other stuff going on during race day, harder if you don't have a pit guy you can work with.

My advice is either go to a park or quiet street, spend half a day or so, start with needles at factory. Then try all different settings e.g start to lean bottom end and do long WOT runs, keep leaning until you think you have gone way too far so you get to know what a too lean bottom sounds and feels like.

Then go too lean top, rich bottom and rich top and lean bottom etc with long runs.

Its the only way you will learn, by doing it in a "controlled" environment you shouldn't damage the motor.