hey guys. as some of you may have read i bought an Echo SRM 261T about a couple of months ago to replace my Stihl FS100. i LOVE the 261 but this past week it started running bad. i changed the air and fuel filters.... both were brown. i changed the plug and pulled the muffler to check for carbon and didnt find any build up. basically what it's doing is wanting to die when i pull the choke off and back to run at full throttle. either there's an air leak somewhere or the carb is bad. tomorrow i'm taking it to my dealer. just wanting to know who else has experienced this from their 261 after a couple of months. Kent p.s. - i ran it with the gas cap off also to make sure there wasnt a vent problem.