My old string trimmer was getting to be really hard to start when first starting it from cold. I actually looked at the thing closely and noticed one major issue, Doh!

The primer "bulb" had a major hole in it. It was the one the edger came with and I have had the Echo edger for about 10 years. The old bulb is obviously on the right, and the new one is on the left. So I ordered the bulb, and it only comes in a "kit" with an air filter, spark plug and even the fuel lines for about 14 bucks. OK,. the plug is old, and it sure never hurts to replace an old air filter.
Well "while I am in there" I could use a new string head. The old one really had to be whacked on the ground, and it had trouble feeding the line.

Yea, some wear there. No wonder the string was constantly snapping off at the hole, and I had to stop and re-thread the line.

Now how do I get the old one off? I was guessing it was a reverse thread, but YouTube to the rescue. I watch one video and the moron did say it was a reverse thread and to turn it counter clockwise. What? Lefty losey is counter-clockwise and normal. So I just took the reverse thread to heart, and used a strap wrench to get the old head to spin off. No big deal. I used the same strap wrench to put the new one on a bit snug.
Now the sting feeds with just a slight tap on the grass. I was lazy enough to just not mess with the fuel lines. It ain't broke, so why fix it? I have the rubber lines and plunk tank filter and a extra prime bulb in a baggie hanging next to the edger in the shed.

The yard is edged and mowed and I am ready for a shower!