Has anyone had problems with the mercury fourstrokes.Mine is a 30hp. four stroke mercury that i purchased new last year and have had nothing but trouble with it since.It won't run good enough to plane out.When you let off the gas it dies and just plane runs like crap.It's been worked on by the dealer,Carbs adjusted,rebult then replaced but the trouble exist.I'm at the point of seeking legal services.Anyone else have this problem? 