Last weekend fueled boat, just under half full. Filled to 3/4. While running noticed mph was 30 and rpm 4800, not normal. Normal is 30 @ 4000. Did have a heavy load of people wt wise. Ran 1/2 hr. Stopped to fish awhile. Then ran again. Within three minutes alarm sounded and went into limp mode. Went into BS Marina, Charlotte Harbor. Called my mechanic and explained problem and stated I felt it was water in fuel because it happened almost a year ago after fueling at same marina. I always use this marina for fuel. Had me run some tests and agreed about water in fuel. Did not have the items aboard to correct myself. (Will not happen again). Had mechanic at BS take a look and agreed with water. Changed out and cleaned filters, removed about three gallons of water till gas was crystal clear. After leaving marina boat ran 30 @ 4000 as it should.
As stated this happen last year also having to drain three gallons of gas with water until clear. This happened after fueling and only ran about 200 yards.
Marina both times stated it is not their gas as it is tested weekly. Checked my gas cap O ring and it appears good. Boat does not collect water in bilge except after heavy rains then only a quart or two. Never an oil slick when I turn on the bilge pump to test it and there is some water in the bilge from washing.
does anyone have an idea what I may look for as the cause. Again it has happened only twice in the last year and never in the seven years of owning it before this.
Sorry to be so wordy but want to give all details of what I know. Thanks guys. 😀😀fin
Does anyone know the size O ring needed for the gas fill cap. Want to change it for the h..... of it. More than likely orig.