Taking her out for maiden voyage today. 09 800 dragon 163". First what is the dial on the dash? I am assuming its controlling the air vent? what should it be set at? turining it left all the way open? What sshold tach be at? I also noticed it has a temp gauge, what is normal temp and what is hot? Thanks guys, just made the switch from doo after 3rd motor replacement on three sleds. good luck to me.