Hello everyone, I am very mechanically inclined on larger engines but this little Echo trimmer has me stumped? It sat for about a year or so before I tried to start it. I pulled off the carburetor and cleaned it out, replaced the main fuel line and filter, removed the spark arrestor (temporarily). I got it to run for about 5 minutes and played with the high and low and it still ran pretty rough. I turned them in and backed both screws out 1 1/2 turns while it was running.

It seemed to run pretty good at an idle and mid throttle. I shut it off and tried to start it about 30 minutes later and it will not even sputter like it wants to start. I thought I might have fouled the plug so I removed the plug and heated it with a lighter and touched it to the frame while I turned it over and I got some spark so i know the plug and ignition are working. The compression is at 100 psi. I even tried to use a little starting fluid with negative results. Any ideas?