So I picked up a 2010 YZ450f about a month ago. With all the snow down I didn't really have much of a chance to ride it. After doing a tire change today I tried to start it and take it for a little ride to see if it was okay. I kicked and kicked and kicked and it finally started, I let it idle and then turned the choke off and then it turned off. So I turned the choke back on, kicked and kicked and kicked when it finally started I just left it alone and let it idle, after about 2 minutes letting it run with the choke on I turned it off and let it idle for a while. I took it down the road, and when I pulled in the clutch to turn around it bogged and shut off. I started it up one more time and drove back up the road and when I pulled into the diveway It bogged and shut off again. What could be the issue? Thanks in advance for any input!