Well, what do you do when it's 91F and 99% humidity? Well, it's too hot to work on the roof, so you go split wood! Spent some time splitting some wood both yesterday and today. Was dealing with some real big ash rounds today from the tree in the photo below. Rather than muscle a bunch of 800 pound rounds onto the splitter, I figured I'd noodle them with the 064, but it wouldn't start! If there was a blurp with the choke on, I missed it. After a half dozen pulls with choke, I flipped the choke off and pulled until I was too hot to care. Saw has been sitting a few weeks or months, but that's normal here. Put fresh gas in it today, but not until after the first dozen pulls. Started and ran without trouble the last few times out, but would shut down after several minutes running. We assumed it was a tank venting problem, as loosening and re tightening the gas cap seemed to help that, but more testing was warranted. Hoping it wasn't the ignition. Pulled out the 036 pro, and proceeded to frustrate myself trying to cut big rounds with a tiny saw! This ash must be some of the hardest I've cut, as the 036 was throwing some fine dust and cutting slow with a sharp 33RSC. So slow that I swapped the chain for a brandy new one, but had the same result. Bar was also running hot, reminding me I might turn up the oiler a bit on that saw.