Hello Bruce,
Thank you very much for the parts lists and diagrams and for your easy to follow starter removal steps which I have today followed with success.
I found that the nylon starter spring holder had been fitted upside down when last serviced, thereby allowing the spring to escape and unwind and damage the holder.
I have re-fitted the spring and holder correctly and my trusty MAC25 brushcutter is now running again.
Kind regards, Bill A.