Ethanol will make the rubber seat in the carb's jet soften and then the needle gets stuck. Sometimes flushing it will break it free but usually not. It's practically glued in there then and a carb jet rebuild is in order, simple.
I run non ethanol in my small engines and will occasionally throw some seafoam in the tank. Often just a bottle into the 5 galloner when I fill that up in the spring.
Shit starts like a charm all the time.
Stuck needles make me cuss really loudly. The whole neighborhood is bugeyed.
Reading the instructions from stihl is key to proper starting. Their tools are not always designed intuitively. But they run just fine once ya get it figured out.
I have a new trimmer FS46? I got in trade from a client who couldn't get it started. It has a funky sequence to fire. Works great.
$35 a gallon for that stihl gas. what fool would do that?

