My buddy helped me put a new tank on my bike. For a few weeks it ran well. Now it stops after a ride no more than 2 or three miles. My mechanic didnĀ“t know what the problem was. I called a mechanic he referred to me and he said it could be the vaccum hose. The reason he said this is b/c it seems like it is running out of gas whenever it stops. Does anybody have any idea what the problem could be? Thanks.