Cheers for your help matey, had the rear caliper off and split it up as you suggested. Not too much corrosion evident, but some. The main culprits were the pistons. As the old pads had worn quite a long way the pistons had been semi exposed for some time, so a crust of shite had built up preventing them from fully recessing. Having carefully exposed the pistons by gently applying the brake I removed the encrusted crud with a small brush, some meths and a cloth. After this they slid smothly back all the way into the bores. Reassembled, and all seems well, although I reckon a caliper rebuid may be on the cards this winter. Gave it a little run, and whilst the disk still got hot, the caliper etc was not, so I guess this is just the new pads wearing in. Make sure I reward you with liquid currency next weekend. -- Dan L (Oldbloke) My bike 1996 Kawasaki ZR1100 Zephyr M'boy's bike 2003 Honda NSR125R (Going) Spare Bike 1990 Suzuki TS50X (Patio Ornament) BOTAFOT #140 (KotL 2005), X-FOT#000, DIAABTCOD #26, BOMB#18 (slow)
I've just tackled the calipers on my newly-acquired GPz550. Pistons were sticking slightly, but this time the real culprits were the sliders that the floating pads ride on. Half an hour's work, maybe 40 minutes' worth, and we have stoppers that don't stop all the timer, IYSWIM. I tell you, it's a fun bike, that little GPz.
