I've covered this before. I used an articulated ladder for an "A" frame. Placed it over the rear of the bike. I don't have exposed rafters in my garage so the A frame was a necessity. I attached a dirt bike tie down (ratchet type) to each side of the A frame and to the rear portion of the bike frame (seat off, do not use the grab rail). I lifted the tail till the shock was unweighted. I unbolted the lower shock bolt and swung the shock up. Then I ratcheted (is that a word?) the tail up a little more, rear wheel still on the ground, till the Y-pipe could just be twisted out of it's little hole! Then lower the tail by the tie-downs back to where the shock bolt will go through, tighten, and lower back to the ground. Once you get the tail up in the air, it's pretty easy to see what has to be done in getting the Y out. Hope this helps.