Lawnmower and weedwacker need a limpia, or a combination of an old priest and a young priest. Or to be shot. Or maybe fixed. The dude on Perrin Beitel and Thousand Oaks apparently just has better things to do. Who else ya got?
Mower is a Sears POS 101. Dunno about weedeater. They're both my Dad's. I bought a Toro and a Stihl, treat them like caca, and they run just on spite. He pampers his stuff, does all the maintenance, and they **** the bed.
I have Echo stuff myself that I abuse and cannot kill so I don't have much need for repair service. However I bought parts for my father-in-laws Stihl chainsaw at C&L on Austin Highway (just West of PB) on the past. Their parts department is helpful. Never used them for service though.
If your stuff is cheap, it may be more economical to replace it.