My Stihls are at least 25 years old and still bullet proof, start on the third or fourth pull if not sooner. Always run non oxy here in all small engines if that makes a difference.
I also run a good cleaner thru the tanks once a year.
Wouldn’t trade them for any other. Just yesterday finished cutting up 7 cords birch for this winter, not a hiccup other than a chain change.

Osky


A woman's heart is the hardest rock the Almighty has put on this earth and I can find no sign on it.