This is the answer to Steve's question. Use a small wire cutter to cut one end of the fuel line on a bias into a small point. You can still only get a small part of the line through the hole. Use a pair of clamps such as a hemostat to reach inside the tank and pull the line through. It may take several passes to pull enough line through to reach the tank opening. Pull it through the tank opening and square it off with the same cutters used in the beginning. Then attach the fuel pickup/filter before dropping it back into the tank. Adjust to proper in-tank length by gently pulling line back through the opening until the pickup rests on the tank bottom with a little slack to allow it to move around in the tank when the trimmer is tilted to various positions.
There is also a larger return line which requires the same procedure but, instead of attaching to the pickup, it attaches to a small plastic fitting that must be snugged up against the larger line hole at the top of the tank. You can reach a finger or thumb inside the tank to help snug it up without pulling the line all the way out.
Tip: When replacing fuel line(s) on 2 cycle engines, save yourself some trouble later. Replace the primer bulb. Any time you replace one, replace the other.
Good luck
Doctor Dave
May 2012