Thanks Gadge, I did pull the carb and went through it a couple of months ago but it made no difference. It is so difficult to get at the governor, that I think it will be easier to pull the motor out and work on it on the bench. I'm not even sure if it has the governor spring on the rod, can't see in there, I know the butcher boys have been playing with the lower spring as it looks nothing like the ones in the manual
