hi every one I have a 1973 mercury 115 I just replaced the trigger switch with some help from here . The first time I put her in the water after replacing the switch it ran great !!! Full throttle no problem idled good after a while of blasting around it started to bog down if I backed off the throttle it would sort of straighten out . I thought maybe the gas was bad or contaminated ...I drained the integral gas tank after which I discovered that there was only about 1 gallon of gas in the boat . I thought I had discoverdd the problem (running out of fuel) .....I filled the tank with new premium fuel premix I was hoping that this would be the cure ....no such luck wher I first it full throttle it worked great but after a minute or two it started to bogg again.... the motor works great at idle trolling it just wont do full throttle ??? when it boggs out it seems to almost cut in and out sometimes like bogg out then go good then bogg out ................anyone have any ideas ??? I bought some Seafoam and am going to try that this morning ....thanks in advance Jeff