Join Date: Sep 2001
Location: Aurora, CO USA 80013
Bikes with quarter fairings, like the FZ1 and FZ6, will certainly be up to lighter duty sport-touring use. Some downsides are: Without any lower fairing coverage, your legs are exposed to the elements- rain, cold, hail, etc that can often be encountered on longer trips. These bikes don't come with hard luggage. You can buy it aftermarket, but it's pricey. Soft luggage will do the job, but they're not quite as heavy duty or weatherproof.
Honestly, your existing YZF 600R would make at least as good, and in some respects, a better sport-tourer than the FZ's. I know you can defininitely fit soft luggage on it and I've actually seen posts on sport-touring oriented sites where riders are using their YZF 600's as light-duty tourers.
For heavier duty sport-touring, bikes like the Yamaha FJR 1300 and Honda ST 1300 are a nice step up. Downside- those bikes cost a LOT more than the FZ1/FZ6.