Hey, thanks for the link!
I looked at the link in the first reply and reading the info there it sounded like only the early '90s and later FSMs were available online.
Unfortunately, there's something wrong with the pdf on that page you just posted, it won't download to my computer. I tried it just by saving the PDF directly and by installing and trying that amazing download software and it won't work either way. Bummer.
Oh well, I did find the info I needed by searching around in other areas, and the engine's not getting installed today anyway as the crankshaft is screwed up and one of the rocker arms isn't aligning properly with an exhaust valve.
Probably take at least another week to get this stuff straightened out.
Building engines would be fun if you could find machine shops that could actually do good quality work...