There are a few of us in Seattle who have done some riding near Mt St Helens and Mt Rainier, sort of halfway in between. I also met a nice guy who lives in Vancouver and also rides an FZ1. We have met up a couple times to ride/eat/chat.
I would be up for meeting at Paradise on Mt Rainier some day for lunch. It is not riding together, but would be a great out-n-back for both of us and we'd have someone to visit with at lunch. You'd have to wait/watch for FR25 to open up on East side of Mt St Helens, though.
You should also check out YZF600R.com and the PNW section on the forums there. Granted it is not your bike, but it is a great board to be a part of. I am 2wheelsrbest and Cyclenerd is your neighbor with the FZ1.