Homelite Woodsman chainsaw starting issues
I have a 45cc Homelite Woodsman chainsaw with an 18" bar that has been a very reliable product for the past decade or so. A couple of weeks ago, I managed to cut up a decent amount of felled trees and branches however when I got it back out of the box to deal with some tree stumps, it started playing up. Initially it worked fine however the saw would start and then die as soon as I pulled the throttle. I had previously cleaned the air filter assembly and when I removed the filter, the saw would start and run OK without any choke. Later, after a few more cuts, the saw reverted to refusing to start and run. I then found that if I started it and held the saw on its side that I could get it to full throttle and it would run fine. Then, eventually, it refused to even do that. I did notice that there was some suction of air when I opened the fuel cap and the fuel seemed to be agitated. I took the side panel off and blew out as much crud and sawdust as I could with a compressed air line, including the two gold colored mesh screens that are in the black plastic housing next to the gas and oiler tanks (which I assume are some sort of breather?). The gas/oil mis is correct and fresh, the spark plug is sparking healthily when it turns over and there appears to be fuel in the barrel. Any suggestions of where to look for a solution? I really like this saw and suspect it is something simple so any help would be appreciated.