I took your advice and was actually pleasantly surprised on how much better the idle is after adjustment of the mixture screw. It took quite a few adjustments to get the idle to improve. There is barely any movement in the governor arm at the idle position which made me a lot happier.
I also made some minor adjustments to the choke rod which assisted greatly in the opening and closing of the choke butterfly. I have noticed that without the butterfly completely closed the engine will not start when cold. It is usually a first or second pull starter when cold now.
This weekend I will take the blade plate off and clean the string collected up around the shaft. I�ll also put on 4 new blades.
The pull cord is already in really good condition so I see no need to replace it.
I�ll also take it out for a run in the long grass down the back of my suburb and let you know how it performs to finalise the thread.
If you anyone has any other suggestions for these engines I�d appreciate your thoughts because I would like to ensure the engine is reliable as possible
Thanks again grumpy