Ballistic

so my starter recoil assembly got mangled on my GX390. I picked up a replacement already. The center hub thing im replacing also because it go bent. Now, the hub thing that the starter engages into.. which is bolted to the flywheel with a 15/16" nut.. 3 questions.. 1.how do i hold the hub from turning while trying to undo the nut? 2. when i replace the nut.. what torque? 3. does the nut loosen counterclockwise as usual, or is it one of those reverse threaded ones? hope this is clear. thx.

starter rope eh? I like it.. will give it a try today.!! thx