I am totally fustrated I have owned his boat for two weeks. It bogs down past 3/4 throttle. So far I have changed fuel, fuel filter, spark plugs (gapped them), plug wires, distributor cap and still have the same problem. If I am attempting to pull my wife and daughter out of the water on a tube, I can't get the boat to plane. The more I bury the throttle the more it bogs and losses power. Here is something really wierd, if I open up the engine cover I get the slight increase in power and eventually the boat will plane. Without towing a skiier the boat is fine at cruise as long as I accelerate to cruise very gradually, but as soon as I go over that the boat bogs again. Today I listened by the engine and it sounds like the bog sound is comming from the carb. I had the carb off as well and partially apart (float bowl exposed). I showed it to the guy at Advanced auto and he said it looked amazingly clean as if someone had just rebuilt it. I am assuming the problem is the carberator? Maybe the mixture, jets? My engine serial number is 0F821555. please help