That is what I was thinking Paul but I will need to cut it down and maybe weld something to the end like a 10mm nut or something so I can get in there to turn it. It is one of these things where they have a motor and then fit a petrol tank above and directly in line with the plug. The manufacturer never has to change a spark plug, they just bolt it all together. Alternative is as I said split the casing so then it is easy to get to because the petrol tank can then be removed.
