Gas Hose Fail
The weather is changing. Hot one day, cool another. Still your not ready to store your boat away just yet. make sure you inspect your hoses.
On quick inspection, a gas-tank setup may look fine. But peer a little closer (see photo above) and you'll see that it's everything but fine. Where the hose makes a bend, it's cracked and a failure is imminent. This kind of hose failure can send gas into the bilge, where vapors can build up and then be ignited by the smallest spark.
The next time you're in your boat examining the fuel system, follow every hose and make sure there's nothing like this hiding around a dark corner. If you're not sure how old your fuel hoses are (manufacturers typically say 10 years is their useful life), they are marked with the year they are made.
If your hoses are more than 10 years old, they're due for replacement.
If they're not marked, it means they aren't Coast Guard-approved and should be replaced right away.