OK THIS STARTED 3 YEARS AGO BOAT WAS A HAND ME DOWN FROM MY PARENTS AND MY DAD WAS A GEAR HEAD,TOOK BOAT OUT WHEN FIRST GOT IT NO PROMBLEMS, AFTER THREE TRIPS IT WOULD NOT LET ME POWER UP IT WOULD STALL ONLY GO 4 MPH ANY MORE THROTTLE IT BOGS DOWN ,FUEL RIGHT? CHANGE THE FILTER, EMPTY GAS TANKS CLEAN THEM OUT. PUT THE WINGS ON HER FULL POWER ,GET ON THE WATER, 4 MPH, THE LOAD AGAINST THE MOTOR WAS TO MUCH,GOT THE CARBS DONE, PUT IN ON THE WATER 25-27 MPH {IS THAT WHAT I SHOULD GET, ITS A 24FT PARTY CAT} I HAVE A COUPLE OF PARTNERS ON THE BOAT,SO I TAKE IT OUT NO PROBLEMS 5 OR 6 TIMES, PARTNER TAKES IT OUT 1ST TIME IT DOES THE SAME THING NOT AS SEVERE ONLY GOES 10 MPH WOULD SURGE UP TO 15 IN AND OUT.WE PUT SOME HIGHER OCTANE FUEL AND SOME FUEL STABLER IN THERE NO PROBLEMS FOR 2 MORE TRIPS THEN CAME SUNDAY, NOW MIND YOU IT NEVER DID THIS ON ME THE LAST COUPLE TIMES SO I THOUGHT THEY DIDNT KNOW WHAT THEY WERE DOING,NOW SUNDAY GO OUT RUNS GOOD FOR 5 HOURS THE LAST RIDE WAS 1HR 15 MINS PULL INTO COVE IT DIES, STARTS RIGHT UP ONLY GOES 5 MPH? WHAT DO YOU THINK? ALSO IT SEEMS LIKE IT WENT THOUGH A LOT OF GAS AND OIL FOR THE DAY , MOTOR TIME WAS ABOUT THREE HOURS AND WE WENT THOUGH 9 GALLON OF FUEL, I SAW NO LEAK NOR SMELLED ANY FUEL AND SAW NO OIL SLICKS THANKS, I DONT WANT TO CHASE PARTS FOR THE PROBLEM ANY IDEAS?