my bike will start easy with the choke on but when you go to shut the choke off the bike seems like it has low idle and wants to stall out. But if you put the choke on a little it idles fine. Plus I find it eats a lot of gas. 30 minutes of running it eats about a 1/2 tank of gas and that's when the tank is full. I checked the fuel lines to make sure it is not leaking and its not. Any idea's where to check to solve this problem?