Hey Ill start off with an introduction as I'm fairly new to TT. My name is Pierce I'm new to crfs and fairly new to dirt bikes. I got this 02 crf450r about a month ago but I've had a broken ankle and haven't been able to ride. I've changed my fluids, air filter ect just basically tuned it up since I got it. I've ridden it for short times without any problem. Today I got on it for the first time to really ride and after about ten minutes of riding I started choking out. Kind of sounded like I wasn't getting enough gas. So I filled my tank with premium grade gas. Started it back up rode for about a minute and it did it again. This time so bad it died on me and wouldn't start again. The fact that it took ten minutes makes me think that I'm overheating. But my radiator is full(haven't change the coolant since I bought it). Anyone had this problem or have any ideas?