Today, several times while at idle, my engine would die. Also, it will crank several times before turning over. And, I noticed both yesterday and today that while riding, the engine will periodically miss. As if one of the spark plugs isn't firing once in a while or something. All I know is that the bike will suddenly jerk, somewhat. What does this sound like to some of you guys? I'm taking it to the dealership tomorrow to have them look at it. I just got this thing yesterday. Also, I've only got 30 days of warranty then I'm on my own. I'd better get every single concern out of the way, now. Anybody? Also, tonight, I noticed a brief (but no less alarming) grinding sound coming from the left side of the engine just to the right of the gear shift (is that the crank case?). Anybody? BTW, the bike has 18300 miles.