When my 26' searay I/O 1989 5.7 Mercruiser rebuilt this year hits 4200 rpm it drops down to 3000 rpms .When I put it back in neutral the rpms are fine.Then when I take off again she will run fine for about 2 minutes then she will do the same thing again.She runs fine with no load. checked the Carb fuel filter (perfectly clean) Fuel filters are new.Is it the fuel pump? or carb?or??????? Help<br />Rick<br /><br /><br />When out to try gas vent line that was not it. Got towed in!! Blown head gasit. Will fix it this weekend I hope that was the problem? Not coursed by the problem. help
