My bike is a newly purchased 05 200. On my sons bike klx110 I have encountered hard initial starting and it just generally runs like crap for the first 10 minutes of each ride unless I have run the gas out of the carb before putting it away the ride before. I was told by the dealer that this is due to the small amount of ethanol blended into almost all gasolines on the east coast during the last year or so separates in the small passages over a few weeks storage time between rides and takes time to clear out. I found this hard to believe but I have never encountered the problem when I have run the bike out of gas at the end of previous ride. I have encountered the problem EVERY time I dont run the gas out if I let the bike sit longer that 4 days to a week. My KDX responds similarly in the hard initial start if the gas sits but starts 1st kick every time if I run it out. Has anyone else run into similar circumstances or do I just have gremlins? I have conducted this experiment numerous times with the same result but I dont want to run my bike to lean by turning my petcock off while ending my ride. Any info or opinions are appreciated.