1 stihl nut
Well-Known OPE Member

I've got an 034 that runs and operates marvelously. However lately the idle jet keeps getting out of tune. I can tune it, which requires an 1/8 turn more or less, but it goes out of tune after a short while. It seems it can go either way.... richer or leaner. I'm assuming it's turning on its own. What might a solution be? Isn't there a spring to tension it to give friction on threads? Is a careful application of blue loctite on the threads a possible solution. I can check that spring closer to see if it's broke...
Is this an issue someone has run into before?
Is this an issue someone has run into before?