buffy said:

So, the mower mechanic has worked out why my bush mower won’t start. Apparently it’s got 2-stroke fuel in it. Which is apparently my fault for using the red fuel container. But petrol is in the red ones and diesel is in the yellow ones. Apparently one of the red ones has got 2-stroke in it. Who knew? I have suggested Mr buffy label things when he puts something different in them…He also informed me that the fuel is a different colour. Which he can see by looking into the black tank…I told him I’m not taking the blame for this.

how long you been using 2-stroke mix in a 4-stroke, generally doesn’t do too much damage short to medium periods, and unlikely any serious damage.