I removed the recoil starter and held the flywheel nut with a socket while undoing the blade clutch bolt. Not an easy feat for a 75 yr. old but thanks for your reply.Most likely you need to be using a strap wrench to hold the flywheel while using an impact to remove the screw.
I was gifted with long arms, otherwise I would have had to recruit someone.I know there are time an extra set of hands are needed. I had to get help from customers a few times last year so I torque PTO clutches on ZTRs. And I got ZTR that I have to have help to remove and replace the drive idler arm bolt. Just don't have Orangutan arms.