Things went horribly wrong today. On the way to work, it was very cold and the bike ran like a dream, no stutter. On the way home, quite warm, got half way home and the bike started Sutter in all the time. Had to nurse her home. Couldn't open the throttle at all without terrible stutter. Even with the throttle held in a steady position. Pulled up outside the house and the idle, runs for a bit, then races for a couple of seconds then drops back to normal. Any suggestions?
