My 04', (450) once in a blue Moon, will "lock-up" when kickstarting. What I mean is that on occasion, when kicking her over, the kickstarter will only go so far and then lock -up. I then usually have to put it in gear, and rock it a little too break her loose. It then will work perfectly..... My buddies 03' does the same exact thing on occasion also..... I'm assuming it has something to do with the auto-decompression. Do you guys have any tips to prevent this??? I've heard it's better to kick these 450's over slowly, with a full push of the kickstarter, rather than 2 stroke-like with short, fast kicks. Any help appreciated.