Pau 13z, I stupidly ran straight unleaded in my Powertorque Mustang once and it did the grass for a good few minutes before it let out this great squeak and stopped running all of a sudden. I then realised I used fuel from the similar looking can marked four stroke!! I let it cool and emptied the fuel tank before replacing it with 25;1 and giving the primer a few pumps to get the two stroke flowing. off it went and did the rest of my yard. It did a lot of heavy work after that without drama, though it is no first pull starter. It usually takes two or three. haven't run it in two years. Will have to pull it out for a run.
