I has gas in my oil, filled the engine up. rebuilt the card and replaced the fuel pump, thouht it was coming from the fuel pump because the bottom of the pump was wet, started it up, forgot about it and went back a week later and the engine was full of gas again( i had changed the oil also), the left rear tire goes flat overnight so it had sat like that, but i did not think this would make a difference, just wondering if anyone had any tips to check what is leaking