You will normally hear the pads on the rotor. Not always, but this is really very common.
However, being only able to rotate the tire one turn while on a stand? Your shit is dragging hard, mate. Odds are that the seals on the caliper pistons are 1) shot or 2) full of crap.
Hate to say it, but bite the bullet and rebuild the calipers. You may not need to replace the pistons if you just get them nice and smooth (never sand up and down them, always around), replace the seals, clean the crap out of the housing(s). When you put it back together, use nice fresh brake fluid to lubricate the pistons as you put them in. Rebleed the system and try again.
You also may want to try a different set of pads, as a cheap experiment, while you're in there.
1990 FJ1200, 740lbs race ready with rider
1.68 60' 4.549 330'
10.912 1/4 ET 124.16 1/4 MPH
Strapped, -1" rear, UNI pods, V&H 5˚ advance, pump 87, V&H SS2R 4-1 <---JUNK, YZF 17x5 wheel, Shinko 170, jetted correctly.