Stihl 036

[Burchie70]

When I first got the saw the low speed jet was turned out 3 turns and I set them both at 1 turn each to start

 

[Bob Hedgecutter]

When I first got the saw the low speed jet was turned out 3 turns and I set them both at 1 turn each to start

3 turns out was likely compensating for an air leak- like your busted fuel line?