I posted this question prior to the "oops" should have backed it up. I did get some replys and am most pleased with the responses. I guess I should have asked, has anyone had a problem with any Merc 4 stroke, EFI any year. My prior post was I have to have 2 gaskets replaced between the power head and lower unit. This motor is a 2003, 50hp tiller - model #50ELHPT4SEF - serial # OT671797. <br /><br />David 