Thanks, I'll cross my fingers and try it with the compressor tonight. I know I had one of those adapters at some point...
The tires have a full season of riding on them. If I can't get it to bite I'll just resign myself to using tubes until I get some new tires.
sbear55: I think you mean I can mount the tire with a tube to set the beads, then unseat one bead and pull out the tube. Then install the valve and add the sealant with one bead off, all the while hoping the other bead doesn't pop out. When I first took the tire off, the second bead certainly stuck in pretty well - I will give this a shot as well.
Thanks all!