Okay - fixed, I think. Oiled and adjusted the chain. Used Dupont Teflon Multi-Use Dry, Wax Lubricant $5 from Lowe's. Rode around the block a couple of times, put it on the center stand, spin the wheel, no click.
I did a search to find an alignment procedure. Got really confused, laser light? string? Finally went with the Singh low tech method, ride the bike on level ground and take your hands off the bars and see if it goes straight.
This is the second chain adjustment on the bike, 2300 miles. I did a ride of 500 miles last weekend, oiled the chain before I left. I should have known the chain would be dry.
Thanks for the replies.
Terry
edit: With the bike on the center stand the chain slack should be approx. 2", its better to be too loose than too tight. When you take the bike off the center stand there is a big difference. Thanks GSS