So I was riding back from Menard's yesterday when my 4-stroke suddenly stopped idling. Any time I slowed down it would simply die. Then when I tried to pull start it it would lurch forward and die again. I normally always keep the clutch in per Hough's instructions to avoid sheering any of the gears in the box, but to get it home I had to start the engine without the clutch in, get up to speed, and then squeeze the clutch. It would jerk a little and almost die but then the engine would push the bike up to normal speed. What would cause this?! Any ideas? Now that its warm here in MN my bike is my primary mode of transportation!