It turns out that there was nothing wrong with the fuel filter nor the muffler.
The main fuel line between the carburetor and the fuel filter was deteriorating pretty badly. I went ahead and replaced that fuel line. The other two fuel lines between the fuel tank, primer, and carburetor were of a different transparent type and were not deteriorating.
This string trimmer seems to run a little nicer, but not by much. I was able to achieve "full throttle" under half-choke but that's it. With no choke it will bog down and die just the same. Either way, even under half-choke it still isn't running right, and there is no difference running it with or without the muffler attached to the engine.
I didn't take the head off to examine the cylinder for scoring. I think that's it for this one, I may as well try to sell it for parts to recoup some of the cost of the replacement parts I put in to it.
I also noticed to be getting quite a bit of oil blow by coming out of that little port behind the air filter. There is a tube running between the air filter housing and the engine. I assume this is the crankcase ventilation?
Granted, the oil level was filled too high before, but I rectified that today. Still getting oil coming out of the vent.
It must be FUBAR. And I believe this machine to be less than 4 years old. Not surprising for China made crap, I guess.
The main fuel line between the carburetor and the fuel filter was deteriorating pretty badly. I went ahead and replaced that fuel line. The other two fuel lines between the fuel tank, primer, and carburetor were of a different transparent type and were not deteriorating.
This string trimmer seems to run a little nicer, but not by much. I was able to achieve "full throttle" under half-choke but that's it. With no choke it will bog down and die just the same. Either way, even under half-choke it still isn't running right, and there is no difference running it with or without the muffler attached to the engine.
I didn't take the head off to examine the cylinder for scoring. I think that's it for this one, I may as well try to sell it for parts to recoup some of the cost of the replacement parts I put in to it.
I also noticed to be getting quite a bit of oil blow by coming out of that little port behind the air filter. There is a tube running between the air filter housing and the engine. I assume this is the crankcase ventilation?
Granted, the oil level was filled too high before, but I rectified that today. Still getting oil coming out of the vent.
It must be FUBAR. And I believe this machine to be less than 4 years old. Not surprising for China made crap, I guess.