I posted a post no to long ago regarding a bog i had when accelerating to full throttle. Everything has been checked (ignition is new and setup properly, fuel pump checked, fuel pickup cleaned) except the carb which i have a kit all ready to go. I was going to rebuild the carb but i am not sure now. I filled my boat from a Shell gas station (92 octane). The boat ran awesome with no bogging what so ever. I filled one more gerry can with the same gas and still no bogs. A friend filled a gerry can with Esso gas (92 octane) and the minute i pulled away form the dock the bog returned. I then tried some more 92 octane from another station and i still have the bog. Now, is it my accelerator pump working every once in a while or is it the gas ? If it is the gas then is it water in the fuel or something else ? Any ideas, this problem is a real pain, especially when i am trying to pull a skier.