I've had a problem that started with my 2005 ltz400, It only idles with the choke on and as soon as I take it off it just dies. I thought maybe it was just old gas but when I changed the gas and spit all the old stuff out and it still does it. I even messed with the idler. Can anyone give me some good advice? I'm a newbie rider and it's a used bike and don't know much about how to fix little things.