Thanks for that , why people buy this rubbish I will never understand but I guess market forces have driven these things down to the cheapest on the market, so as consumers we deserve what we get.
AVB, sure I tried a new plug after I had to get the grinder in there to cut one of the screws off that held the cover over the plug because when it was assembled they had cross threaded it.Plug has good spark, compression is as good as you would expect on any motor of that size.
Trev as for warranty he lent it to his brother in law still in the box but it came back without the box and the warranty paperwork. I have told him to just put it in the bin, they are not worth wasting time on