Hi Grumpy,
OK I changed the needle and it did make a difference but she is still Hunting. it was running for about 3 to 4 minutes (longest run so far )but then stopped and has only had short runs since.
remember i cleaned the whole carby out with carby cleaner so there shouldn't be any crud in there now. Should there ??.

I will ask one thing about when i cleaned the exhaust port holes if you remember 2 of the 3 holes were blocked but as i was carefully removing the stuff some fell into the piston hole. so when i finished cleaning i made sure i cleaned out the piston hole with carby cleaner. Is it possible for it to get to the carby from the piston hole ?(i would have thought not because it would either go back out the exhaust or out the spark plug hole. I did give her umpteen good pulls to blow out anything that might be left(with the plug out)
Pete