First run on my 2 smoker yesterday and I went to get the info off the carb, which there is nothing, and I noticed the chrome on the muffler is slightly tarnished. It is not running too hot is it? I ran it for 10 to 15 minutes at the most. Don't want to trash it this soon. I also noticed the drive chain must have streached some during that run. Guess this bike is going to be like a helicopter, run for one hour and work for two but that is what it is about huh. Give a little input about the hot looking exhaust mffler. gphil