The motor was already out when I picked up the bike. The previous owner had taken it out a couple of years ago and was going to give the motor a good overhaul plus do some other work to the rest of the motorcycle. The motor has been partly disassembled already, but all parts are supposed to be there (I hope!). As hot as it is here, I'm afraid working on it will have to wait until late August or even September. In the mean time, I plan on downloading and examining lots of manuals and data on the motorcycle, reading and asking questions on forums like this, and ordering a copy of Mr. Paris' book next month. I might try to get up early on some mornings and try working short times on taking off some of the other parts of the bike to examine it better and see what I'm facing. Thanks again for all of the advice so far.