A couple of months ago I purchased a petrol hedge trimmer/grass strimmer. It was a cheap one from Screwfix (Titan). I didn't want to pay a lot for one as I haven't got much use for it.

Got it home & put some E5 petrol (two stroke mix) into it. Tickled it, pulled the cord & it fired up first pull. A few weeks later I went round to my mums & cut her hedge with it, it worked fine for 3/4 hours. Filled the tank at least 4/5 times with the same petrol.
A few weeks later I took the grass strimmer part to the allotment to strim the paths, it worked OK for about 30 minutes then it started to cut out on full revs, I had to release the trigger until the revs steadied then start again for a couple of minutes, this kept happening.
A couple of days later I wanted to use it again, it refused to start, nothing!
I took it back to Screwfix who exchanged it for me, same make, different model.
For a number of reasons I didn't try the new one until yesterday. Put the petrol in it (from the same can I had used before), tickled it & pulled the cord & kept pulling the cord, nothing, not a sign of life.
Of course, I thought what am I doing wrong, surely two units, both new, can't have the same fault. I checked for a spark & that the cut off switch was operating correctly. The plug was sparking & it was wet so was getting fuel into the cylinder.
Today I went to the petrol station & got some fresh fuel, mixed a container of two stroke, emptied the old fuel out as best as I could. Filled the tank with the new stuff, tickled it, pulled the cord & it fired up first time!!

Does anyone want half a gallon of suspect petrol?
