Hello again grumpy,
There is no way that I will be able to get even my smallest stumpy screwdriver into that threaded hole while the carby is attached.
Going by what you've said so far, and the carby service checklist you attached earlier, I would think that removal of the carby is pretty much inevitable. So if you're willing to run me through that I would be very appreciative. It all looks simple enough but doing all the steps in the correct order is probably important (removing governor correctly etc).
Your instructions so far have been clear and concise so they have been easy to follow - thanks for that.
Cheers
