Craftsman Trimmer ( Model 358.791050 )

I obtained a Craftsman Trimmer ( Model 358.791050 ) for free and it would run for about 10 seconds and shut off. I took the Carb off and gave it a really good cleaning, replaced fuel lines,fuel filter and spark plug. I am still having the same issue - starts and runs for 10 seconds or so and shuts off again.
Any ideas where to go from here?

Thanks in Advance,
TimNC