This time, the bike won't start. It acted as if it fouled a plug, after riding it about 8 minutes. The battery was dead before I kicked it to life. I have put 2 new plugs in it and all it does is that "fouled plug" backfire (after about 5 kicks). I have put the battery on charge and it is now good to go. I haven't done any other troubleshooting, as of yet, as it just failed over the weekend. The bike won't start when kicked, or the magic button is pressed. I am following my normal start drill. As the WR450 Yamaha manual has limited troubleshooting hints, any advise would help. Thanks.