flooding
my worst problem, was when the sled laid over. If I was sitting nose up or down at all, it was a pain to start, definatley had to hold some throttle open. Mine never had any trouble while running or idling, just when I shut it off then tried to restart, or whiped out spinning cookies. Buy one, they are good, just need to find someone that can help you set it up, preferably on the hill.