New Husqvarna 550 XP (Frustration to joy experience)

[Oldpath05]

My three year old 562XP runs great if I do my part, but is touchy to hot start conditions. I had a similar problem as you are having last summer with a 12 year old Husqvarna string trimmer. I adjusted the mixture screws and that helped a small amount but got worse quickly. So over the span of two days went from running okay to fiddling with mixture screws to a no start condition. Changed plug to no avail. Then I tore it down enough to see the fuel line was cracked. Did not look like much fun to finish disassembly, was busy, so I took it it a dealer repair shop. Ended up being fuel line and primer bulb.

Or as many other things, could be Trump's fault due to osmosis.

Yes my 550xp has always been touchy from the time I first got it. When I look at my saw this weekend and fine the line is cracked and to hard or aggravating to fix, might take it to the saw shop too. If the fuel line is cracked, it happened quick, weekend before last, ran good, this past Sun afternoon wanted to cut a couple trees and all it did was start and stop as soon as I hit the throttle and the choke came of, but if I feathered the choke the saw would stay runing-ish, but to cut wood that way. I'd need tree hands...

 

[huntindog1]

I had issue with a auto tune saw that was hard starting and run issues it ended up being the has tank vent partially work but not fully working to let air in the tank and prevent a vacuum.