I have a 2002 tracker tundra 18 ft with 150 hp mercury outboard. I have not used this boat this year, and it is has been sitting outside. I did have a dealer tuneup the mercury this spring. I thought it odd, when I started it up a couple of days ago, and the gas guage either was not working, or someone stole gas, or there was a leak. I put my drain plugs in, went and filled up with 25 gallons of gas. The following morning, I notice a gas smell, and a drip out of the plugs in the transom. I opened the plugs out, and gas poured out. I filled up close to 12-15 gallon in plastic gas containers, all contaminated, from being in the bilge. There is still gas in the tank, I took off the sending unit, and there still is a lot of gas in the plastic tank. I cannot seem to find leaks in hoses. However, it is very difficult to get a good view of the lines to check. Damn Tracker boat. There is a good possiblitly, over last winter, squirrels may have chewed on hoses. I hopethey did not chew on the tank some place, because that is under the floor boards. Any help on where to check, and how to check, would be appreciated. Thanks