This is my first post so here it goes. I am having problems with my echo 260 trimmer and 1500 hedge trimmer leaking gas out of the air cleaner or muffler when not in use. It seems like the gas is being pumped into the carb even though the engine is not running. This does not happen all the time though. On cool days, it might not happen at all. But on the hot days, this might occur at every stop. You go to grab a trimmer and gas is dripping out of the air cleaner or muffler, which ever end is pointing towards the ground as they sit on the trimmer rack. Once you take the plug out, give the starter a couple of pulls to force the excess gas out, and put the plug back in, they run great. Any suggestions or ideas on what the problem might be is greatly appreciated. Thanks.