My 2000 Yamaha YZ426F quit on me while i was riding. I was riding in a field for about 30 minutes and my bike made a metal sliding against metal sound for about one and a half seconds then shut off. I kicked the kickstarter lever twice, the third time it felt like it had an ungodly amount of compression, now i cant get the lever to go down at all, even with all my weight jumping on it. Im not a racer, and i dont constantly beat the hell out of the bike i just roll around in 1st and 2nd gear, maybe even 3rd. im thinkin my piston rings are fried. what do you think it is, and what should get to fix it?