imported post
Thanks again all. I just wanted to do a quick follow-up. My local dealer had the seal in stock. It's a good thing I asked here first, because he had trouble locating it on the fiche. I had located it on the '86 1200A fiche before calling. It is item #38 on the CylinderBlock section, description isOIL SEAL (14X28X7) , Honda part #91206-286-013.
Installing it was very easy. The shift lever comes off easily without disconnecting the headers, and the seal popped right out. I cleaned up the seal surface well, put loctite on the outside as suggested, and a little oil on the center seal surface, slid it by hand into position, and tapped it in using a 3/4" deep socket with a short extension, also as suggested. I did not put tape on the splines. I tried, but it was quite difficult to get a single layer of tape on the splines in that position. I found the portion of the shaft with the splines on it is somewhat smaller than the shaft where the seal fits, so the seal fit easily onto the shaft and past the splines without causing any damage to it, so the tape was not necessary anyway.
Thanks for all the help and suggestions!
John