Alright, here's the problem: I was riding to tortilla (it's a motard, so I was on the freway for 25 minutes) on the WR400 (first longer ride I've done on it). As I get off on Idaho the throttle seems to be stuck since it keeps revving even though I release the throttle and clutch. So, I shut it down using the kill switch and pull over. The next two ours I'm not able to start the thing and eventually flood the carb. While thinking about this, I begin to think it's an ignition problem. So, I pulled the plug today and it looked fouled and pretty nasty. So, I cleaned it up a bit (since I couldn't buy one today) and tried to start it. Nada, so I pull it out and touch a piece of metal and kick start it. I see a spark, so that tells me the plug works (i think). Anybody got any other suggestions? This was the first time I rode with throttle applied constantly and it seemed to hesitiate a bit 3-4 miles into the freeway ride over. Anybody got any suggestions/ideas?