I'm about to conclude weed eaters and chain saws die in the same sense that dogs and cats die. Never had much luck with 2 strokes anyhow but this one realy top's them all. 40cc chainsaw started just fine for 3 years and two dozen times last week until primer bulb cracked. Ran to store for bulb and changed it. Now it will not even pop,much less attempt to start. Changed plug,let it sit over night,tried starting fluid,switched mufflers and its got plenty blue spark but still nothing. It feels the same as ever and I feel each compression as rope is pulled slowly. Can compression be tested?