If you have help, CapnKirk has a good approach. If by yourself, as I was, suggest you make sure the bike is always very stable, as Speedy suggests. My approach: block the front wheel front and back. Tie off each side of the V so that it will not move sideways - front and back. Remove lower cowling. Put a small piece of wood under the motor and place a jack under the wood (I used a small floor jack). Jack up the V until the rear wheel just leaves the ground. Remove the nut from the shock mount. Slowly lower the jack to relieve the pressure on the shock bolt. Carefully pressing on the threaded end of the bolt while lowering the jack will tell you when the bolt is free to be removed. Stop the jack, remove the bolt, install the lowering block on the bike. Again, carefully, slowly lowering the bike while lining up the shock bolt thru the lowering block will allow you to slip the bolt thru easily, without stressing the bolt threads. Leave all nuts loose at this point. Slowly lower bike until lowering block rests lightly on face of swinging arm. Install the stainless cap screw thru the lowering block, do not tighten.
At this point, remove jack and tighten all bolts.
Hope this was not too lengthy. Good luck.