Are you sure the gas is fresh, and hasn't been sitting around awhile. Also that no water or condensation built up in the tank

Also when you run the tank down that low debris can sometimes get sucked into the fuel line or exiting point of the carb. I'd still double check the main jet on the carb as well

Tank was half-full, I just cannot figure this out...I even posted problem on Husqvarna's "answerarmy.com" troubleshooting forum under "trimmer died in middle of job". I even attached a video of problem to post...not the first reply...this has been the best trimmer ever and just cannot give-up on fixing it. I am going to order a carb at end of week and see if that resolves issue. No dealers in my area...

Thanks Brindle112 for your help, I have gave up fixing existing parts and going to start replacing parts...starting with carb

Replace the fuel line, get 5 $ worth. That is the only part my 322 L has ever needed. I like the Zama . It was gunked up by flakes of varnish from the fuel line .

Thanks Andyma! I'll try that...I'll have a chance to work on it again next week.

Downloaded schematic of carb again, my carb was missing "welch" plug, made a temporary plug out of aluminum tie, works great after adjusting L and h screws, however I just got my new carb, so going to go ahead and replace old carb with the new one...