Hi Norm,
I gave it a go but I'm not sure it's helped. I did as you suggested and after doing it three or four times there was a build up of dark oily looking fuel in the carby throat, I thought maybe that was some residue clearing out of the carby but it still seems to be surging at low and higher revs as well as being impossible to tune. I also tried some carby clean into the carby as it was running but that didn't help either.
I'll take the carby off and pull it apart, apart from the fuel bowl there doesn't seem to be much else that dis-assembles, but I'll try and clean out all the jets and orifices I can see and then give it another go.
Appreciate your help.
Andrew.
