I bought a used featherlite weedeater a few years ago, without a manual. It has worked great until this year. Now I can not get it started or to stay running. It will run for a few minutes and die. Anybody have any idea's? My daughter even has taken the fuel lines off and checked them, but they seem fine. Thanks!

Here are a couple of possibilites, 1) put in a new plug 2) if the gas might be old, gummed up, replace with fresh gas, be sure to mix w/ the proper amt of 2 cycle oil, probably 50 to 1 ratio.