Bruce,
I have cleaned her up and serviced the carby and she started first pull!!! Fuel inlet screen was really gummed up and metering lever was way out but I might have done that when I reassembled it. Just have to adjust the high and low speed needles (I didn't think the neighbours would appreciate me doing that at 9pm!!!).
It has a plastic cutting disc fitted but I wouldn't mind putting a string head on it. Is there a replacement part I can use?
Thanks for your help and advice
Graham