Excellent story - which shows yet again that many machines got for a song can be fixed quite simply - people balk at servicing fees so the item gets tossed. Another example is computer monitors - the most likely fault is bad capacitors (Google badcaps) - just needs a screwdriver, soldering iron and new caps - a real cinch.
So anyhow, what is the model nr and 'brand' of your generic full-crank trimmer, so I can Google it and see what to look out for?
Meantime, I'll try get this one running. I already spent $6 on new fuel lines, so it had better work.