That's your EPA at work. Carb suppose to be adjusted by a registered mechanic only.
Some of those carb adjustment tools are available on Amazon.

Also, a friend told me that if you take a empty .22 case and jam it over the adjustment hi-lo screws it will bite into the screw enough to back it out. Then you can take a dremel tool and cut a screw head slot in the adjustment screw.

Hi! I'm from the government and here to help!

It is endless.

I pollute more because I can't lean it out. As if Chainsaw pollution even matters.

Throw it in the dump-at your age you dont need the aggravation or have time to waste on that,lol.

Maybe.

I have it all disassembled. The piston looks fine. I can even read the writing on it.
The carb boot looks pristine. The impulse line has two small holes about the size of #6 shot.

I am hoping that is the problem.

It may be a bigger problem finding the correct impulse line to replace it.

I have an 032, but don't remember changing the impulse line. The 026 several times, until I stopped using those stihl black accordion lines and just replaced it with straight fuel line.

This one is one of the accordion type lines but it has lasted 38 years. If I can't find a replacement I will just use a straight wall tubing

So I replaced the impulse line and all the fuel lines and filter . The fuel lines al looked ok. No cracks.
Put new diapraghms and needle valve in the carb. Fired right up after 5 or 6 pulls. Adjusted the mixture screws and idle and it seems like it is brand new !

Yeah!!!!!!! Way to go White17!!!!!!!!! I had faith in you. True grit and determination for sure. Congratulations!!

I certainly had my doubts !

If you can fix a sick helicopter with rotor wash, I figgered you'd make that old Stihl run like a Husky.

That would be a tall order !

Helicopters don't really fly, they just beat the ground into submission.

Always have liked that saying

Helicopters; A bunch of random parts flying in close formation.

Another good one….

If it makes you feel any better I was betting against you.

Mike

I like to tell folks who have a dilemma or difficult question, "I have people for that". Then I come here and solve the problem. I do miss BuckNE for all the nuclear physics issues we have.

Congratulations. I knew you would prevail

I love the feeling of raising one from the dead! Congrats!

A blind hog finds an Acorn once in awhile!