Ridden my mb about 5 times, 10 min. each time. the red fiber washer on the drain screw (or drain plug?) on the bottom of the carb doesn't seem to be sealing it off very well. it's leaking a little bit and when I wipe it off with a towel it looks dry for a second then it gets wet again. in the morning the garage smells like gas and there's a quarter sized spot on the floor where it's been dripping and drying up. the red washer on the fuel "inlet?" where the fuel line comes in is also wet but not really leaking... anyway, what can I replace these two washers with so they don't leak? I tightened them up as much as possible but the washers just seem to be soaking it right up and leaking it to the outside. btw the petcock is definitely closed while this is happening.